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PRESENTED BY:
ALI BIN QAMAR (3564)
FAHAD JAVAID (3664)
NOMAN WAHEED (3677)
TALHA ALI (3775)
ADVISOR: ENGR.
NAJEEB JAFRI
SDP 1 - REQUIREMENT SPECIFICATION
LOW SPEED SUB SONIC WIND TUNNEL
• INTRODUCTION• PROBLEM ANALYSIS• ASSUMPTIONS• ADDITIONAL FEATURES• FUNCTIONALITY• LITERATURE REVIEW• ENVIRONMENTAL FACTORS• MINIMUM ACCEPTABLE STANDARDS• CONCLUSION
ROADMAP
INTRODUCTIONAIMWIND TUNNEL FOR OBSERVING MANEUVERS AND IMPACT OF RELATIVE AIR FLOW ON AN AIRFOIL.
OBJECTIVE• TO BUILD A WIND TUNNEL
• INDICATION OF DIFFERENT PROPERTIES • ASPECT RATIO CALCULATION
• SCALED DOWN AIRFOIL
• TO CHECK AERODYNAMIC PARAMETERS
PROBLEM ANALYSIS• KIET STUDENTS ARE FACING PROBLEMS • SPECIAL DEPARTMENT
• DESIGN AND STRUCTURE OF TUNNEL
• THE ACT OF AERODYNAMIC FORCES
• DIFFERENT DESIGNS HAVE DIFFERENT EFFECTS
• LIMITATIONS AS PER STRUCTURE
ASSUMPTIONS
• FLUID FLOW IS LAMINAR
• FLUID MASS FLOW IS CONSTANT
• CONSTANT DENSITY OF FLUID SEA LEVEL
• CONSTANT PRESSURE DIFFUSER SECTION
• CONSTANT TEMPERATURE
ADDITIONAL FEATURES
• VARIOUS DIGITAL DISPLAYS
• DIRECT CALIBRATION OF SPEED TO M/S
• DIFFERENT SYSTEM OF UNITS
• ROBUST MODEL
• COMPATIBILITY TO CONVERT INTO CLOSE LOOP
ENVIRONMENTAL FACTORS
• WORK SPACE OBSTRUCTION FREE
• OUTSIDE PRESSURE CONSTANT
• TEMPERATURE VARIATION IS LESS
POWER SUPPLY
REGULATOR
BLOWER(RPM)
HONEY COMB
AOA CONTROL MECHANISM
MOTOR
CONTROLLER
ACTUATOR
FEEDBACKERROR
PRESSURE MEASUREME
NT
AIRSPEED MEASUREME
NT
OUTLET
BLOCK DIAGRAM
FUNCTIONALITY
LITERATURE REVIEW
PIC Atmel 8051
Cost Moderate Cheap
Programing language Assembly,C and VB
Assembly,C and VB
Built-in module ADC, USB, UARTPWM None
Market Availability Easily Available Easily Available
Simulator Proteus Proteus
LITERATURE REVIEW
Stepper Servo
Driving circuit for accuracy Needs additional circuitry Not required
Noise Often Rare
Speed Slow Fast
Load capacity Can lift medium load Can lift high load
Additional circuitry Needs for closed loop Built in feedback circuit
cost Cheap Expensive
Selected Motor : Servo
MINIMUM ACCEPTABLE STANDARD
• VARIABLE AOA MEASUREMENTS
• PRESSURE MEASUREMENT • AIRSPEED MEASUREMENTS • DIGITAL DISPLAY
• OUTPUT UP TO 70% TO 80%
• ATTITUDE CHANGE DISPLAY • RAF REGULATION • AOA CALCULATION • HELP FOR LEARNERS
CONCLUSION
QUERIES/SUGGESTIONS