Proceedings of the Specialty Conferencesponsored by the Hydraulics Division ofthe American Society of Civil Engineers

Lake Buena Vista, FloridaAugust 12-17, 1985

Edited by William R. Waldrop

UNIVERS!TATSB!BL!OTHEKHANNOVER

TECHNISCHEINFORMATiONSBlBLlOTHEK

Published by theAmerican Society of Civil Engineers345 East 47th StreetNew York, New York 10017-2398

UB/TIB Hannover 89103 445 773

RO 395(1985,2)

CONTENTS

Session 3AMICROCOMPUTER DEMONSTRATIONS

Vahid Alavian, Chairman

Teaching Open Channel Design with Programmable Pocket CalculatorsJohn D. Teasdale 1

Large Basin Runoff Forecasting on Small ComputersThomas E. Croley II, Holly C. Hartmann 7

Hydropower Surveys with MicrocomputersJohn S. Gulliver, Avry Dotan 13

Microcomputers in Domestic Water System EvaluationStephen E. Davis 19

Reservoir Operation Simulation on MicrocomputersHenry R. Horsey, E. V. Richardson, James F. Ruff, Darell D. Zimbelman 25

Microcomputer Simulation of Jets and WakesKarim A. Abood, Thomas B. Vanderbeed 31

A 1-D Saltwater Intrusion Program on the IBM-PCDinshaw N. Contractor 37

An Operational Dynamic Routing Model for Small ComputersMohamed F. Helwa, Robert M. Ragan 43

Stormwater Routing for Small SitesRobert J. Houghtalen, Jerome M. Normann 49

Microcomputers in Highway Drainage DesignDennis L. Richards 54

Floodplain Modeling for the Henry Street BasinRonald F. Giovannelli, Robert D. Tolbert, Hans Zarbock, Pedro Hernandez 61

Session 3BSURFACE WATER HYDRAULICS AND HYDROLOGY

Robert M. Ragan, Chairman

Estimating Peak Flow Reduction in Small ReservoirsDennis R. Horn 67

Comparing Flood Stage-Discharge Data—Be Careful!Gary R. Dyhouse 73

Predicting Overland Flow and InfiltrationA. Osman Akan 79

Designing for Residual FloodingLewis A. Smith 84

Computerized Information for Selecting Protected StreamflowKrishan P. Singh 88

Session 3CFINE SEDIMENT TRANSPORT I

Ranjan Ariathurai, Chairman

Vertical Transport of Fine-Grained Sediments in SuspensionAllen M. Teeter 94

Prediction of Fine Sedimentation in Small MarinasPeng Yea Maa, Mayank Srivastava, Ashish J. Mehta 100

Simulation of Marsh Growth Under Rising Sea LevelRay B. Krone 106

Aggregation and Consolidation of Phosphatic ClaysB. M. Moudgil, John Ransdell 116

Session 3DCOASTAL AND WETLANDS

Patrick J. Ryan, Chairman

A Two-Dimensional Numerical Model of Thermal Discharges in Coastal RegionsShih-Huang Chieh 122

Computational Model for Computing Dune ErosionJames R. Hill, Barry E. Herchenroder '28

Simulating Flow in the Tidal Potomac RiverRaymond W. Schaffranek '34

Canal Discharge Impacts on Fahka Union BayJohn C. Wang, Joan Browder ' 4 I

Tidal Flooding Study for a Seattle WatershedJohn D. Sell, Richard A. Lowthian, Wayne J. Greer, Jeffrey A. Layton 147

Sesion 3EREAL TIME MONITORING AND FORECASTING

Richard H. French, Chairman

Real-Time Monitoring for Ohio Basin Water ManagementRonald A. Yates 1 5 3

Real-Time Monitoring and Flood Forecasting in Harris County, TexasWilliam A. Evans, David C. Curtis l 5 9

Geostationary Operational Environmental Satellites (GOES) Data CollectionProcedure-Fort Worth District

James M. Medlock '65Real Time Flood Forecasting on Small Computers

Eric S. Clyde, Kevin J. O'Brien 1 7 1

Session 4AMICROCOMPUTERS IN HYDRAULICS AND HYDROLOGY

Dennis R. Horn, Chairman

Numerical Modelling of Pollutant Transport From a Pond to a StreamQais Nuri Fattah, Bashir Thabi Mohammad l 7 6

Modeling Boundary Layer Flow in Stormwater Detention BasinsJy S. Wu, Robert C. Ahlert, Michael Wang 1 8 4

A Microcomputer System for Processing Analog Hydrologic DataJ. Robb Startzman 190

Flowfield Analysis with a WorkstationRichard C. Farmer, Youssef M. Dakhoul 196

Survey of Computer Use in Hydraulics and HydrologyJames T. Wulliman, Larry A. Muller 201

Session 4BSURFACE WATER HYDRAULICS AND HYDROLOGY

Tavit Najarian, Chairman

South Branch Rockaway Flood Water StudyDonald E. Woodward, Peter E. Saunders 207

Application of Geographic Information System for Hydrologic InvestigationMing T. Lee 212

Using Remotely Sensed Data to Estimate RunoffDavid P. Alexander, A. Ramachandra Rao 218

Control of Select Priority Pollutants in StormwaterMartin P. Wanielista, Yousef A. Yousef, Michael McBee 224

State Space Approach to Flood Stage EstimationGregory A. Jones, Roy W. Koch 230

Session 4CFINE SEDIMENT TRANSPORT II

Ashish J. Mehta, Chairman

Computer-Based Predictions of Atchafalaya Bay SedimentationWilliam H. McAnally, Jr., Stephen A. Adamec, Jr., Robert F. Athow, Jr.,Joseph V. Letter, Jr 236

Numerical Modeling of Fine Sediment Physical ProcessesDavid H. Schoellhamer 242

Prediction of Shoaling in Estuarial Channels: A Microcomputer ApplicationEarl J. Hayter, V. Tapasvi, P. K. Mukherjee, Ashish J. Mehta 248

The Impact of the 1-664 Bridge Tunnel Crossing SedimentationSamuel B. Heltzel 254

Session 4DCOASTAL AND WETLANDS

James R. Hill, Chairman

Energy Dissipation in Tidal WaterwaysPanagiotis D. Scarlatos, Vijay P. Singh 260

Friction in Hurricane Induced SurgesBenton A. Christensen 266

Tidal Inlet Sand Transport in Rollover Pass, TexasJerad D. Bales, Edward R. Holley 271

Microcomputer Applications for Coastal EngineeringAustin A. Owen, Doyle L. Jones 277

Simulation of Wetland Hydrology and HydrodynamicsFlora C. Wang, J. S. Wei, Julie A. Amft 283

Session 4EREAL TIME MONITORING AND FORECASTING

Ronald A. Yates, Chairman

F. C. Lowell, Jr., Robert M. Reynolds, R. H. Beede 289

Kevin J. O'Brien, Eric S. Clyde '498

Open Channel Flowrate Measurement Using Multipath Acoustic FlowmetersF. C. Lowell, Jr., Robert M. Reynolds, R. H

Quality Control Management of Real-Time DataKevin J. O'Brien, Eric S. Clyde

Radar for Flood Forecasting—Reservoir OperationJohn Frank Bell, Wesley P. James 29S

On-Line Hydrologic Simulation of Lake Conroe Reservoir Releases forDownstream Flood Control

Hanadi S. Rifai, Phillip B. Bedient 3 0 °Encoder for Flood and Irrigation Data Transmission

Harold G. Lee J U 0

Session 5DGROUND WATER COMPUTER APPLICATIONS I

Porter C. Knowles, Chairman

The Effects of Long Term Withdrawals on the Mid and Lower Hawthorn Aquifers,Cape Coral, Florida

Michael S. Knapp, Wm. Scott Burns, Tim S. Sharp J l z

Interfacing Ground Water Data Collection with MicrocomputersAlton F. Robertson, J. D. Hardin 3 l 9

A General Microcomputer Approach for Evaluating Groundwater ResponsesWilliam E. Kelly, Michael E. Nicklin 3 2 5

Computer Model Study of a Contaminated Well Field—Groundwater PollutionSource Identification and Contaminant Plume Simulation

Shih-Huang Chieh, David Cook, Jack C. Hwang, Jeffrey Brandow 3 3 °

Session 5ERELIABILITY ANALYSIS OF WATER DISTRIBUTION SYSTEMS

Larry W. Mays, Chairman

Data Base Development and Analysis for Water Distribution SystemsJames A. Goodrich, Jeffrey Q. Adams, Robert M. Clark 3 3 6

Reliability Analysis of Water System CapacityBenjamin F. Hobbs 3 4 1

Methods for Reliability Analysis of Water Distribution NetworksLarry W. Mays 3 4 7

Reliability Evaluation of Water Distribution System ComponentsM. John Cullinane, Jr 3 5 3

Evaluation of Water Distribution Network ReliabilityYeou-Koung Tung 3^9

Session 6AMICROCOMPUTERS IN HYDRAULICS AND HYDROLOGY

Shaw L. Yu, Chairman

A Shopper's Guide to Urban Stormwater Micro SoftwareGary L. Lewis, Denis P. Gilbert 365

Microcomputer Applications in Stochastic HydrologyTiao J. Chang 371

Integration of Micro, Mini, and Mainframe Computers in WES Hydraulics StudiesWilliam H. McAnnally, Jr., S. A. Adamec, D. B. Bach 376

Application of Interactive Computer Simulation to Water Resources Problemsin Civil Engineering Education

Al B. Cunningham, J. R. Amend 382

Session 6BSURFACE WATER HYDRAULICS AND HYDROLOGY

Y. J. Tsai, Chairman

Levees at St. Louis—More Harm Than Good?Gary R. Dyhouse 390

Application of Water Budget to Seepage Loss EstimationJagdish K. Virmani, Patrick J. Ryan 396

Agricultural Water Use Efficiency and Water SupplyJames K. Koelliker 402

Entrapment of Interstitial Water by Overland FlowA. David Parr, Clint Richardson, Dennis D. Lane, Diane Baughman 408

Session 6CSEDIMENTATION

Ray B. Krone, Chairman

Turbidity Control Measures Associated with Reclamation of an AbandonedPhosphatic Waste Clay Pond

Wayne A. Ericson, Richard X. Gonzalez 414Suspended Sediment Transport from Nonpoint Sources

Paul B. Makowski 420Computer-Based Design of River Bank Protection

Howard H. Chang, Zbig Osmolski, David Smutzer 426Sedimot-II Application to a Large Coastal Watershed

Martha F. Juch, James P. Pappas, Wayne Dempsey 432

Session 6DGROUND WATER COMPUTER APPLICATIONS II

Abe Criteman, Chariman

A Ground Water Flow Model for Protection of the Northwest Well Field,Dade County, Florida

Mark D. Taylor, Richard C. Johnson, Rafael Rodon 438Modeling Hydraulic Problems Using the CVBEM and the Microcomputer

Chintu Lai, Ted V. Hromadka II 444Computer Modeling of Ground Water Flow

Edmond D. H. Cheng 450Overview of EPRI's Solid Waste Environmental Studies

Ishwar P. Murarka 456

Session 6EBROWNS FERRY NUCLEAR PLANT THERMOHYDRODYNAMIC STUDIES

Bevan W. Brown, Chairman

Browns Ferry Nuclear Plant: Twenty Years Experience with ChangingThermal Criteria

E. Ely Driver 461Browns Ferry Nuclear Plant Thermal Compliance Monitoring Network:Utilization of Data

Russ T. Brown 466Field Evaluation of a Diffuser-Induced Mixing Model

Susan M. Nelson 474Applications of a Diffuser Performance Model at Browns Ferry Nuclear Plant

Susan M. Nelson, Walter L. Harper, Peter Ostrowski, Jr 481Simulation of Far-Field Thermal Effects From Browns Ferry Nuclear Plant

Walter L. Harper 490Integrated Hydrothermodynamic Study of Browns Ferry Nuclear Plant

Peter Ostrowski, Jr 496

Session 7AMICROCOMPUTER DEMONSTRATIONS

Paul G. Mayer, Chairman

The Microcomputer as an Intelligent Work Station in Large ScaleHydrologic Modeling

Robert M. Ragan, E. J. White 504A Course in Hydrology Using Microcomputer Graphics

Sara R. Valenzuela, Frank D. Masch 510Eight Open Channel Flow Programs for the Apple He Microcomputer

Richard M. Schoenborn 516Effect of Tall Vegetation on Erosion and Sedimentation: A Microcomputer Package

Reza M. Khanbilvardi, Andrew S. Rogowski 521Two-Parameter Synthetic Unit Hydrograph for Microcomputer Application

Phillip W. Winsor, W. P. James, J. R. Williams 527Interactive Computer Aided Graphic Water Well Pumping Test Evaluation Software

Allie W. Blair 533Urban Stormwater Investigations by the U.S. Geological Survey

Marshall E. Jennings 539Dual Drainage System Balancing Design Using Microcomputer Simulation

Lynn E. Johnson 544Advances in Selective Withdrawal

Jeffrey P. Holland, Steven C. Wilhelms 550Solving the Two-Dimensional Diffusion Flow Model

Ted V. Hromadka II, Chintu Lai 555A Microcomputer Simulation Model Based on South African Hydrology

Ian R. A. Green 563

Session 7BSURFACE WATER HYDRAULICS AND HYDROLOGY

Walter J. Rawls, Chairman

Water Surface Profiles in Compound ChannelsTerry W. Sturm, Dan M. Skolds, Merritt E. Blalock 569

Analyzing Combined Sewer Overflow EventsGary Heinking 575

Small Canal Discharge Measurement by Thermal DilutionRodney J. Wittier, Steven R. Abt 581

Boundary Shear Stress in a Meandering ChannelRichard E. Brown, Edward R. Holley 587

Assessment of Water-Shortage Risks Under Various Use Options forCedar Bluff Reservoir

Yun-Sheng Yu 593

Session 7CTRANSPORT, COAGULATION AND DESPOSITION OF PARTICLES I

Marc Lorenzen, Chairman

Coagulation in Natural WatersCharles R. O'Melia 599

Physical and Chemical Behavior of Chrysotile Asbestos Particles inNatural Waters

Roger C. Bales 605Reactive Transport of Suspended Particles

Richard S. Mercier, Keith D. Stolzenbach 610Computer Simulation of Coagulation

Iraklis A. Valioulis 614

Session 7DGROUND WATER COMPUTER APPLICATIONS II

Al Robertson, Chairman

Ground Water Drainage to Surface Coal Mines RefinedLinda S. Weiss 621

A Numerical Model of Water Movement Through Clay LinersCarol J. Miller 627

Ground Water Management Using ComputersRichard Bower, Patrick Gleason 634

Session 7EHYDROPOWER

Alfred B. Cunningham, Chairman

Microcomputer-Based Index Testing of HydroturbinesCharles W. Almquist, James F. Kirkpatrick, Patrick A. March 638

Experimental Study of the Cross-Flow-TurbineShahram Khosrowpanah, Maurice L. Albertson 644

Lessons Learned from First Impulse Turbine Installation in theU.S. Mining Industry

Robert N. Torbin 6 5 °Microcomputer Control for a Small Hydroelectric Peaking Plant

John D. Lawrence, George V. Cotroneo 656

Session 8AMICROCOMPUTERS IN HYDRAULICS AND HYDROLOGY

M. Krishnamurthy. Chairman

Statewide Hydrologic Data Base and Analysis SystemVictor R. Hasfurther, Robert Brocksen 662

Landsat and Micro-GIS for Watershed ModelingRichard H. Berich, Michael B. Smith 6 6 8

Numerical Models for Two-Dimensional Surface RunoffJohn M. Hamrick, Todd S. Tisdale, Shaw L. Yu 6 7 4

Input/Output Schemes for Microconverted Engineering Application ProgramsTing-Kuei Tsay, James J. Adler 680

Session 8BMATH MODELS

E. Ely Driver, Chairman

Flow and Mixing Calculations for a Two-Dimensional Reservoir WaterQuality Model

Russ T. Brown ° 8 6

Initial Operation Model for the Central Arizona ProjectTimothy F. Kacerek 6 9 4

Thermal Plume Model for Demonstrating ComplianceDave A. Mclntosh 7 0 0

Numerical Waterbody Dynamics and Small ComputersJohn Eric Edinger, Edward M. Buchak 7 0 5

Report of the Task Committee on Test Cases for Verification of 2-DDepth-Averaged Hydrodynamic Models

Daniel R. Lynch 711

Session 8CTRANSPORT, COAGULATION, AND DEPOSITION OF PARTICLES II

E. John List, Chairman

Sedimentation of Waste Particles in Coastal WatersKevan J. Farley 715

Brownian Coagulation in the Initial Mixing Region of a Buoyant PlumeHoi-Ying Holman 721

Particle Sizes in Flocculation and Sedimentation: Models and ExperimentsDesmond F. Lawler, Leonard W. Casson 727

Present Status of Research in Debris Flow ModelingCheng-lung Chen 733

Session 8DGROUND WATER COMPUTER APPLICATIONS IV

David Pyne, Chairman

Using Microcomputers for Ground Water Flow AnalysisRobert L. Westly, Alton F. Robertson 742

Monitoring Well Inventory Using Database Development SoftwareJonathan E. Shaw, Kevin A. Rodberg 748

Modeling Aquifer Sensitivity and Leachate ControlsGail G. Crosbie 753

Computer Aided Design of Ground Water Monitoring ProgramsWilliam K. Beckman 759

Session 8EHYDROPOWER

Maurice L. Albertson, Chairman

Economics of Hydrothermal Power DevelopmentNazeer Ahmed 765

Seasonal Hydrothemal Operating PlansJohn F. Scott 771

Portland's New Water Pumping and Hydropower StationSteven E. Simonson 777

Minicomputers for TVA Reservoir System OperationsBurt M. Courtney 783

Turbine Efficiency Loss Associated with Aeration SystemsDonald C. Raney 789

Session 9DFREE-SURFACE FLOW MODELING

Victor Miguel Ponce, Chairman

Computation of Gradually Varied Flows in Channel NetworksM. Hanif Chaudhry, Andreas Schulte 795

Modeling Unsteady Flows in Large Basins: The Santa Cruz ExperienceVictor Miguel Ponce, Zbig Osmolski, Dave Smutzer 801

Numerical Modeling of Bed Evolution in Braided Channel SystemsForrest M. Holly, Jr., Jim-Chuang Yang 807

Numerical Simulation of Stratified FlowsPatrick Sauvaget, Forrest M. Holly, Jr 815

Role of Small Computers in Two-Dimensional Flow ModelingD. Michael Gee I486

Session 9ETHERMAL POWER INTAKES

Perry L. Johnson, Chairman

Hydrothermal Model Study of Stratified Flow in a Power Plant Cooling WaterRecycle / Intake Canal: Reynolds and Densimetric Froude Number Effect

Heinz G. Stefan, S. L. Shih, R. J. Garver 822

Frazil Ice Control Using Air GunsYusuf G. Mussalli, Carl E. Meyer 829

Laboratory Studies for the J. H. Campbell, Unit No. 3, Cooling WaterIntake Design

Heinz G. Stefan, W. Q. Dahlin, A. Fu, T. Winterstein, C. S. Shanmugham 836Biological Evaluation of Angled Screen Test Facility

John A. Matousek, Thomas E. Pease, John G. Holsapple,Ronald C. Roberts 842

Biofouling Control of Water Intake StructuresYusuf G. Mussalli 848

Session 10ALONG TERM ECOLOGICAL RESEARCH (LTER) OF NSF:

IMPORTANCE OF HYDRAULICS AND HYDROLOGYNani G. Bhowmik, Chairman

Long Term Ecological Research—A National PerspectiveJames T. Callahan 856

Watershed Research at Konza—Tallgrass PrairieJames K. Koelliker, M. E. Gurtz, G. R. Marzolf 862

Stream Research at Coweeta Hydrologic LaboratoryJackson R. Webster, W. T. Swank 868

The Role of Hydraulics and Sediment in Large River EcologyNani G. Bhowmik, J. Roger Adams, M. Demissie 874

Session 10BREAL TIME MONITORING AND FORECASTING

Jeff Leighton, Chairman

SCADA and Network AnalysisJonathan S. Bilmes 880

Yakima Remote Control System: Supervisory Control and Data AcquisitionWilliam H. Casola, Onni J. Perala, Daniel W. Farrell 887

Response of Floating Structures in a Directional SeaSenaka C. B. Ratnayake 892

Streamflow Monitoring with Ultrasonic RecordersLori A. Melroy, D. D. Huff 898

Session IOCSEDIMENT TRANSPORT

David T. Williams, Chairman

Lake Water Level and Sediment Management—Case Studies in IllinoisMing T. Lee 903

Analyses of Sediment Transport Data by Microcomputer SoftwarePeter A. Mantz 909

Explicit Hydraulic Modeling of Sedimentation Transients in Alluvial ChannelsMohammad Karamouz 916

Assessment of Sediment Problems in Peoria Lake, IllinoisBarbara A. Miller, M. Demissie, Nani G. Bhowmik 921

Session 10DCLOSE-CONDUIT FLOW MODELING

M. Hanif Chaudhry, Chairman

Personal Computers and Water Network SimulationA. G. Fowler 927

Water Distribution Systems Analysis and Graphics Using MicrocomputersLindell E. Ormsbee, Don J. Wood 932

Computer-Assisted Problem Solving in Hydraulic EngineeringE. Benjamin Wylie 938

Pressurization and Depressurization in Pipe FlowsCharles C. S. Song 944

Session 10EHYDRO INTAKES

Yusuf G. Mussalli, Chairman

Hydro Power Intake Design—Criteria and ExperiencePerry L. Johnson 949

Intakes for Low Head Hydro PlantsJohannes Larsen 956

Fish Diversion in Hydropower IntakeA. Jacob Odgaard, M. P. Cherian, Rex A. Elder 961

Water Supply Intake Structures on Western RiversWilliam C. Taggart, William R. Kendall 967

Vortices at Vertical IntakesJohn S. Gulliver, Alan J. Rindels 973

Session 11AMICROCOMPUTER DEMONSTRATIONS

Woodruff Miller, Chairman

Microcomputers in Hydraulics-Hydrology EducationWesley P. James, Kenneth M. Strzepek, Ralph A. Wurbs 979

Use of a Spreadsheet in a Water Distribution System AnalysisCharles Oulman 985

Simulation of Evaporation Ponds for Liquid Waste DisposalDaniel T. Chan, Fred H. Wend 991

Aquifer Management Using Discrete Kernels in MicrocomputersTissa H. Illangasekare, James H. Brannon, Jr 999

Applications of the Spreadsheet Multiplan and Equation Solver TK!SOLVER inCivil Engineering Education

Thomas K. Jewell 1005Teaching Civil Engineering Using Spreadsheets

Ronald L. Rossmiller 1011Hydrodynamic Model of River Flow on a Microcomputer

Sergio E. Adeff, Sam S. Y. Wang 1017A Hydrologic Model Developed for Microcomputers

Shaw L. Yu, Todd S. Tisdale, Donna L. Richardson 1024

Microcomputer Applications in Flood ManagementHamid Saoudian 1 0 3 °

Applications of Electronic Spreadsheets to Hydrologic and HydraulicComputations

Yin Au-Yeung 1 0 3 5

MILHY-A Microcomputer-Based Hydrologic and Hydraulic ModelDavid L. Stinson, Wesley P. James I 5 0 3

Exfiltration Trench Design as Part of a Stormwater Management PlanRaul Mario Mercado '04 '

Session 1 IBDATA ACQUISITION SYSTEMS

Robert M. Ragan, Chairman

Automation of a River ModelDavid S. Mueller, David L. Derrick 1047

Data Acquisition in USA CREEL's Flume FacilitySteven F. Daly, James Wuebben, Leonard Zabilansky 1053

Computer-Based Data Acquisition, Analysis and Control: A Minicomputer SystemR. L. Meakin, H. S. Rhee, Jeffrey R. Koseff, R. L. Street 1059

Session 11CMECHANICS OF OVERFLOW EROSION ON EMBANKMENTS

George R. Powledge, Chairman

Embankment Overtopping Tests to Evaluate DamageYung Hai Chen 1065

Overtopping of Small Dams—An Alternative for Dam SafetyGregory R. Powledge, Russell A. Dodge 1071

Planned Overtopping of Embankments Using Roller Compacted ConcreteGary N. Reeves 1077

Embankment OvertoppingS. Paul Miller, Hon Yim Ko, R. Jeffrey Dunn 1082

Session 11DTHREE-DIMENSIONAL FREE-SUFRACE FLOW MODELING

Angelos N. Findikakis, Chairman

Three-Dimensional Orthogonal Curvilinear Circulation ModelingAlan F. Blumberg, H. James Herring, Lakshmi H. Kantha,George L. Mellor 1088

Three-Dimensional Simulation of Flow, Salinity, Sediment, and RadionuclideMovements in the Hudson Bay River Estuary

Yasuo Onishi, Donald S. Trent 1095Three-Dimensional Simulation of a Bouyancy-Driven Cavity Flow

Christopher J. Freitas, Angelos N. Findikakis, Robert L. Street 1101Applications of Discrete-Element Computational Models to Transient,Multi-Dimensional Problems in Hydrology

Arsev H. Eraslan, Wen-Liang Lin 1107Two-Dimensional Flow Visualization Using the Vortex Computer Code

Michael L. Schneider, Robert S. Bernard 1117

xiv

Session 1 IEPHYSICAL MODELS

Thomas J. Pokrefke, Chairman

Hydraulic Study Requirements for Bulb Type Hydropower Units at a NavigationLock and Dam

Charles W. Denzel 1122Unique Utilization of a Physical Model to Develop a Construction Sequenceof a Major Cofferdam

Robert J. Rapp, Charles W. Denzel, Thomas J. Pokrefke 1130Karnafuli Hydroelectric Project, Hydraulic Model Studies of Spillway Damage

C. Edward Bowers, Joel W. Toso 1136Glen Canyon Dam Spillway Tests Model—Prototype Comparison

K. Warren Frizell 1142Makeup and Blowdown of a Cooling Pond

Chyr Pyng Liou, Constantine N. Papadakis 1148

Session 12AHYDROLOGIC PROCESSES

David F. Kibler, Chairman

Microcomputer Program for Daily Weather SimulationD. A. Woolhiser, C. L. Hanson, C. W. Richardson 1154

Time and Space Resolution for Continuous, Dynamic Storm and RunoffModel Studies

William James, Mark A. Robinson 1160An Infiltration Based Runoff Model for Use with a Design Storm

Walter J. Rawls, D. L. Brakensiek 1166A Microcomputer Program for River Sedimentation

John F. Davis, Arthur C. Miller 1172

Session 12BDATA ACQUISITION SYSTEMS

Charles R. Cole, Chairman

Secondary Circulation Data Acquisition SystemMisganaw Demissie, Nani G. Bhowmik, W. Hall, C. Maxwell,Ta-Wei David Soong 1178

Data Acquisition and Analysis of Pressure Fluctuations in Hydraulic JumpsJoel W. Toso, C. Edward Bowers 1184

Macro Data Acquisition Systems on MinicomputersThomas N. Keefer, Eric S. Clyde 1190

Computer Techniques for Acquisition and Reduction of Cross-Section DataDaniel H. Lau, Linda M. Mele, Raymond J. Snyder 1196

Session 12CMICROCOMPUTERS IN HYDRAULICS AND HYDROLOGY

C P. Liou. Chairman

Landfill Liner Hydraulics for MicrocomputersAlexander C. Demetracopoulos, George P. Korfiatis 1201

The Micro Vs Mainframe in Hydrologic Modeling and ForecastingDouglas D. Speers, Daniel M. Rockwood, Edward Davis 1207

Flood Routing Through Rock Dumps in Natural ChannelsAngelos N. Findikakis, Shuen-Wei Tu 1213

Water System Analysis—Modeling HydraulicsC. Peter Thomas 1219

Session 12DTHREE-DIMENSIONAL GROUND WATER FLOW MODELING

M. Hanif Chaudhry, Chairman

The USGS Modular Ground Water Flow Model: Designed to be Understood and AdaptedMichael G. McDonald, Arlen W. Harbaugh 1225

Applicability of Ground Water Models to MicrocomputersDouglas B. Rumbaugh, Jeffrey C. Evans, Gerard P. Lennon 1231

Three-Dimensional Simulation of Two Fluid Movement in Porous Media Using theBoundary Element Method

Gerard P. Lennon 1237Incorporating Three-Dimensional Effects into a Two-Dimensional Model

David A. Hamilton, Steve A. Miller 1243

Session 12EHYDRAULIC STRUCTURES

John Grace, Chairman

Generation of Steady Density Currents Through Boundary Layer ControlMasamitsu Arita, Gerhard H. Jirka 1249

Hydraulics of Broad-Crested WeirsB. A. Bakhmeteff, Nicholas V. Feodoroff 1256

Negatively Buoyant Flow in a Diverging ChannelThomas R. Johnson, Gerard J. Farrell, Christopher R. Ellis,Heinz G. Stefan 1492

Velocity Distribution Factor ConstraintsHerman J. Koloseus 1263

Session 13ADEMONSTRATION OF RUNOFF GENERATION PROCEDURES WITH

MICROCOMPUTERSDavid F. Kibler and Walter J. Rawls, Co-Chairmen

Urban Hydrology for Small Watersheds (TR-55 REV)Roger Cronshey, Ralph Roberts, Norman Miller 1268

SCS User Defined Storm Hydrograph (SCS-USH)Bruce A. Tschantz 1274

A Quick Microcomputer Urban Runoff ModelGert Aron 1280

Electronic Worksheet Applications in Hydrology and HydraulicsScott A. Brown 1286

Session 13BDATA ACQUISITION SYSTEMS

William J. Brick, Chairman

Automated Measurement of Soil/Water PropertiesJoseph D. Ritchey, Mary H. Le Faivre 1292

A Low-Cost Microcomputer-Based Field Data Acquisition SystemMark A. Collins 1298

Microprocessor-Based Data Acquisition SystemsJohnny C. N. Sun, Carl D. Tockstein 1304

Design and Calibration of a 200-Foot Model Irrigation Border with a ComputerControlled Infiltrating Bed

Al W. Blair, E. T. Smerdon 1310lIHR's Data Acquisition Systems and Their Applications

James A. Cramer, Tatsuaki Nakato 1316

Session 13CMODELING OF FREE-SURFACE FLOW

Nikolaos D. Kalopodes, Chairman

Tidal Modeling on IBM MicrocomputersWilliam G. Gray, Wayne Carroll 1322

The Matched Artificial Dispersivity MethodAntonis D. Koussis, Demetrius P. Lalas 1328

One-Dimensional Model for Mud FlowsDavid R. Schamber, Robert C. MacArthur 1334

Finite Element Analysis of Recirculating FlowsBruce A. DeVantier 1340

Explicit Finite Element Model for Long Water WavesChien-Tai Wu, Nikolaos D. Katopodes 1346

Session 13DGROUND WATER

Ishwar P. Murarka, Chairman

Measurement of Hydraulic Conductivity VariationJoel G. Melville, Oktay Guven, Fred J. Molz 1352

Optimal Management of Large Aquifers with Uncertain Demands Using MinicomputersManoutchehr Heidari 1358

Analytic Solution for Seepage from Saturated Soil Behind a Braced WallT. Gray Curtis, Jr., Margaret 1. Asgian 1364

Session I3EHYDRAULIC DESIGN OF LONG DISTANCE PIPELINES

C. P. Liou, Chairman

Centrifugal Abrasion-Resistant Pumps in Intermediate Length Pipeline SystemsJ. E. Fatzinger 1370

Transients in Empty Pipes Subject to Rapid FillingConstantine N. Papadakis, Douglas Hollingshead 1376

Series Finished Water Pumping FacilitiesFloyd F. Eunpu, Roger J. Cronin 1 3 8 2

Analysis of Resonance in Pressurized Piping Systems Via a MicrocomputerIraklis A. Valioulis 1 3 8 8

Quick Stroking: A Fast and Accurate Algorithm for Time Optimal ValveClosure Synthesis

David E. Goldberg 1 3 9 4

Session 14AGENERAL HYDRAULICS AND HYDROLOGY

Walter J. Rawls, Chairman

Microcomputer Graphics Flood Stationarity TestBrian M. Reich, Darde G. de Roulhac 1401

SWRRB.80: A Basin Scale Model for MicrocomputersA. D. Nicks, J. R. Williams, J. A. Arnold 1407

Flood Peak Program for Urbanizing Semiarid AreasDarde G. de Roulhac 1 4 1 3

A Microcomputer Based Real-Time Flood Warning SystemScott A. Brown, Eric S. Clyde I 4 1 9

Session 14BDATA ACQUISITION SYSTEMSAngelos N. Findikakis, Chairman

Cazenovia Creek Model Data Acquisition SystemBrian M. Bennett, Leonard J. Zabilansky 1424

Instrumentation for an Uplifting Ice Force ModelLeonard J. Zabilansky 1430

Data Acquisition and Control for Hydraulic ModelsHerman O. Turner, Jr., Charles H. Tate, Jr., John F. George 1436

Recent Developments in Hydrologic InstrumentationVito J. Latkovich 1442

Session 14CINFORMATION RETRIEVAL SOURCES AND AVAILABILITY IN HYDRAULICS

Charles W. Denzel, Chairman

What Every Hydraulic Engineer Should Know About Technical InformationKatherine A. Hayes 1447

Near Real-Time Climatic Data in IllinoisJohn L. Vogel 1453

Sources of Information for Coastal EngineeringYen-hsi Chu, Austin A. Owen 1457

Littoral Environmental Observation ProgramAndre Szuwalski, Ann Sherlock 1463

Session 14DGROUND WATER

James W. Mercer, Chairman

A Microcomputer Dispersivity Evaluation Method for Thick AquifersLeland D. Bowen, A. David Parr 1469

Ground Water Modeling on Small Computers: Past, Present, and FutureCharles R. Cole, Lance W. Vail, Gregg M. Petrie, Richard Skaggs 1474

Development of a Practical Model Simulating Oil Spill Migration(OSPIM) in Soils

Avner Kessler, Hillel Rubin 1480

Author Index 1509

Subject Index 1515