2019 E8IGHT co.,ltd. All rights reserved....Faster analysis with GPU parallel computing technology Improve performance with multi-graphics devices (Multi-GPUs) and speed up workflows

ⓒ 2019 E8IGHT co.,ltd. All rights reserved.



NFLOW is Korea’s first Meshless method(SPH, LBM) based CFD Total Solution Platform.

It can be broadly used in all fields of fluid analysis and provides the desired service of

all stages from product design to verifications. NFLOW SPH and LBM are specialized

software according to the physical characteristics of the fluid

3D Fluid Simulation Software, NFLOW

WHAT is NFLOW ?

N e w F l o w L e a d s O u r W o r l d ! E 8 I G H T

First particle-based fluid analysis simulation developed in Korea

NFLOW has its own algorithm to quickly find neighboring particles by establishing a

search data structure based on the location of each particle.

WHAT is NFLOW ?

• Up to 100 million particles can be used to analyze various situations

• Multi-phase flow analysis allows easy analysis of complex physics

• Stable free surface analysis with no distortion of elements


Large Scale Simulation by 100

million particles

Fluid analysis at any scale with up

to 100 million particles

Smooth Surface Analysis with

Particles

Smooth free surface analysis

with particle-based advantages

Multi Phase Analysis

Two or more different physical

properties are mixed to analyze

flow characteristics of fluids

Anyone can use it quickly and easily as it skips mesh-generation

Simple pre-processing without the grid generation step allows non-experts to perform

fluid analysis quickly. Instead of complicated and time-consuming pre-processing, user

can set up the structure and particle properties to run the analysis.

WHAT is NFLOW ?

01 Structure Setting

02 Set particle property

03 Decide analysis method

Pre-Processing of Mesh-based CFD S/W


Pre-Processing of NFLOW

Set Structure Set property

I. Decide Grid Form

II. Grid Sizing

III. Optimize for geometry

IV. Refine grid

V. Set boundary condition

Pre-processing Time: 10~30 minutesPre-processing Time: Few hours ~ Few days

Reference:A Company

Pre-processing

Provide an integrated platform that combines all processes

NFLOW provides users with an efficient simulation environment from design to modeling

generation, analysis, and result data.

WHAT is NFLOW ?

• Pre- and Post-processing can be done on one platform

• Output of 3D simulation results in various formats

• Visualization can be used on the same platform without using other programs

[ Structure / Property / Analysis Setting ] [ Execute Analysis ] [ Visualize / Result ]

Analysis Post-Processing


Faster analysis with GPU parallel computing technology

Improve performance with multi-graphics devices (Multi-GPUs) and speed up workflows

for faster analysis.

WHAT is NFLOW ?


• Can perform calculations significantly faster than CPU

• Provides performance solver with Nvidia CUDA

• Multi GPU Load Balancing Technology distributes the particles evenly

• Multi GPU Load Balancing Technology combined with GPU parallelism is

rare worldwide

[ Performance by Particle CPU vs GPU]

※ CPU: Xeon E5-260, GPU: Tesla K20 / CPU Single Core

38x 52x 82x 83x

791.8 3746.7 7418.6 21544.8

20.6 71.8 90.1 260.4GPU

CPU

비율

Particles 100K 500K 1M 3M

100K 300K 1M 3M

Ratio

3D CFD Software optimized for large scale analysis

NFLOW SPH, CFD software optimized for large-scale analysis regardless of analysis size.

WHAT is NFLOW ?

• Real terrain can be applied to simulation

• User can freely add structure while analyzing

• No limitation of analysis scale

[Reservoir Collapse Simulation] [Tsunami Simulation]


03 Efficiency

Weak in Free Surface AnalysisDisadvantages to free surface analysis because analysis is performed on fixed nodes

Needs Grid generation and OptimizationInevitably take time for grid generation and boundary condition optimization

Local AnalysisAs local analysis considers various parameters, know-how is needed

CPU-basedLimitation of calculation speed makes large-scale analysis difficult

Mesh-based CFD Particle-based CFD, NFLOW

Skips Grid generation and OptimizationImprove work efficiency by minimizing pre-processing by skipping grid generation step

Large Scale AnalysisAnalyze the same situation as the real environment, so that all variables are considered

Advantageous for Free Surface AnalysisEach particle has a physical property, which is advantageous for free surface analysis

GPU-basedAbsolutely fast calculation speed compare to CPU with GPU

01 Scale

04 Free-Surface

02 Speed

Differentiated CFD Software, NFLOW

WHAT is NFLOW ?


Reliability through verification Institutes and quality assurance through joint research

NFLOW has been thoroughly verified by various verification institutes and research institutes to ensure the trust of

our customers.

WHAT is NFLOW ?


Association Activities

Seoul National University

Patents

Main Patents

• 3D simulation device and method for analyzing drainage performance

or roads

• 3D fluid simulation system and its method to analyze the rainwater flow

on roads and rivers during flood

• Rainwater simulation method by particle-based SPH and its platform

designed to execute such method

• Visualization method of information in blood vessels, device that

executes such method and blood flow fluid analysis simulation

program saved in recording media

• Backflow damage simulation method using fluid analysis program

• Ultra high-resolution embedded system of over 4k based on

extensible multiple display capable of real time interaction

Software Registration

• Total 26 registrations including NFLOW SPH GREEN v2

WHAT is NFLOW ?


WHAT is NFLOW ?


GS(Good Software)

Certificate 1st Rank

2018 Korea Excellent

Patent Grand Prize

ISO 9001:2008 Certificate Certificate of excellent

company in

technology evaluation

Certifications

“ E8ight CO., Ltd. Is growing as a company that is recognized for

product excellence and technology through NFLOW. ”

Reference

PROJECT Performance

Korea RuralCommunityCorporation

Simulation of flooding from Unjeong reservoir Collapse

K-Water

Checking on the Flow of Water Gate in Gangchen-bo, Chilgok-bo and Paldang Dam,3D CFD SW analysis service regarding purification plant operation

Busan Construction Management

Office

Road Collapse of Geomese District, Samramjin in

Nakdong river

Gigye-Andong road construction work

Seoul Construction Management

Office

Masong-Nusan road expansion work

Inhwa-Kanghwa road expansion work

Underpass of detour in Suwon-si (Dongbu Corp.)

Execution design of Munbalji reinforcement

Korea Expressway Corporation

Drainage design using 3D fluid simulation

Design of Gwangu Sunhwn Expressway(Seoyoung Eng)

Saemangeum-Jeonju expressway construction work

(Kumho ENC)

Saemangeum-Dongseo 2-Chuk road construction work (Korea Eng Consultant Corp.)

Hamyang-Ulsan expressway construction work

(Taeyoung Corp.)

National Institute of Disaster Safety Simulation of Mowon reservoir collapse

Busan EcoDelta-city

Tsunami Simulation

VoPak Global oil terminal design simulation

Application in National R&D

Korea Agency for infrastructure Technology

Advancement

Develop One-stop solution 3D simulator in Saemangeum

Develop 3D simulation and establish integrated Management system of Civil accident

Ministry of SMEs and Startups Analysis of Multi-Phase Fluid Flows with relatively large density ratio

WHAT is NFLOW ?


Reference


Universities

Natural Disaster Management Institute

TNO (Netherlands Organization forApplied Scientific Research)

Kumho E&C Taeyoung Corp.

Korea Institute of Science and

Technology Information (KISTI)Mott MacDonald (UK) Sphere Fluidics (UK)

Government facilities and Corporations

WHAT is NFLOW ?

Gachun Univ. KanglongWonju Univ. Kangwon Univ. Gunguk Univ. Gyeongnam S&T Univ.

Gyeongnam Univ. Gyeongsang Univ. Kongju Univ. Geumho Engineer Univ. Daelim Univ.

Donguk Univ. Dongmyeong Univ. Dongsin Univ Myongji Univ. Myongji College

Mokpp Maritime Univ. Pusan Univ Sangji Univ. Seoyeong Univ. Seoul Univ of S&T

Seoul National Univ. University of Seoul Sejong Univ. Songwon Univ. Suwon Univ.

Sinansan Univ. Injae Univ. Incheon Univ. Inha Univ. Jeonnam Univ.

Jeju International Univ. Chosun Univ. Korea Polytechnic Univ. Halla Univ. Hanbat Univ.

Honam Univ. TU Delft (NL)

Social Contribution Program ‘共存’

E8IGHT operates a social contribution program ‘共存’for the return of profits and development of domestic CFD

industry.

• Free supply of NFLOW to universities and other research institutions

• Scholarship, research fund support, R&D project progress and outstanding CFD human resources training business

• 共存 [공존 Gong zon] (Coexistence)


NFLOW User Education

E8IGHT regularly opens NFLOW user education seminars. Application is done through the website/phone/email.

01 Application and Cancellation

• Application : User can apply online, by phone or e-mail 1 week before the date

• Cancellation and postpone- Please contact us at least 3 days in advance- User can not apply for 1 year, if no-show happens

• Education Capacity : 10 people first-come-first served

- If the minimum number of students(3) is not filled, the course will becanceled or delayed to the next training day.

02 Application confirmation

• The representative will contact you to confirm 1 day before the date{email/phone)

03 Education Fee

• Free (Can be changed later)

04 Place

• Place: 6F, Conference Room, The JS Tower, 249 Unjoong-Ro, Bundang-Gu, Seongnam-Si, Gyeonggi-Do

Inquiries

• PC and materials for education are provided.

• Education certificate is provided if the student wants.• If there are any inquires and questions, please feel free to contact to the addresses below.• Homepage www.e8-global.com Tel : 1811-2707 E-mail : [email protected]


Subject & hours Contents Time

NFLOW BLUE(13:00 – 13:50)

-NFLOW Introduction

-SPH Theory -SPH BLUE Practice

50 Minutes

NFLOW GREEN(14:00 – 14:50)

-SPH GREEN Practice

50 Minutes

NFLOW Advanced

(15:00 – 17:00)

-Advanced Practice

-Q&A120 Minutes

http://www.e8-korea.com/

mailto:[email protected]

NFLOW SPH is Korea’s First fluid analysis simulation software developed by applying

SPH(Smoothed Particle Hydrodynamics) method. It can be used in all fields requiring fluid

analysis such as multi-phase, interaction with rigid bodies, free surface analysis, and

particle expression.

NFLOW SPH(Smoothed Particle Hydrodynamics)

NFLOW SPH, 3D CFD Software

NFLOW SPH is a particle-based fluid analysis program that analyzes the various flow

situations in many industries with SPH method. We have developed an optimized algorithm

based on the characteristics of the SPH method to improve the stability as an analysis

program and provide an intuitive and easy UI for users to use more easily and conveniently.

Necessity of NFLOW SPH

1) Solve Complex flows, such as Multi-Phase

In the case of FDM or FVM method using grid, it is difficult to search the boundary

requiring high accuracy because the numerical instability of the advection term occurs

when the boundary of each phase is represented. On the other hand, NFLOW SPH

has the flexibility in dealing with the transformation of surface such as free surface

because it uses particles with unique physical properties

2) Can be used in various fields

The traditional mesh-based software analyzes the limited space and structure, whereas

the NFLOW SPH analyzes based on particle characteristics, so there is no limit to the

size of the geometry. It can be used in various fields according to the size of

geometries and provides various options to users.

WHY NFLOW SPH?


Particle-Based Parallel Processing Technology

Parallel SPH

NFLOW has its own algorithm that finds neighboring particle quickly by

building a search data structure based on the location of each particle.

• Divide the entire analysis area by space

• Search for particles belonging to the surrounding space by searching around the

space near the reference particle

WHY NFLOW SPH?


WHY NFLOW SPH?


Provide Reliable Analysis Result


[Compare Results] Mesh-based / Experiment / SPH[Compare Results] NFLOW / Experiment

Considering the limitations of conventional mesh-based CFD S/W, SPH-based NFLOW can provide more

accurate results in terms of complex structures and large-scale analysis.

WHY NFLOW SPH?


Fast and reliable analysis of interaction and flow between fluid particles with different properties using SPH method

Multi-Phase Flow

It is possible to calculate the distribution of Scalar (energy, concentration, heat, etc.) transmitted and diffused according to the flow of fluid

Scalar Transportation

By treating the structure as solid particles based on DEM method, it is possible to analyze the structure movement due to the fluid force by calculating the interaction with the fluid particles

SPH-DEM Coupling

Predicting and solving flow tendency caused by incompressible and compressible fluid flow

Fluid Flow

DetailsCategory

Physical models of NFLOW SPH

NFLOW SPH Features

WHY NFLOW SPH?


Viscosity Calculation Method

Time Integration

Density FilterViscous Term Approximation

• Leap-frog method

• Delta-SPH• Shepard Filter

• Artificial Viscosity• SPS Turbulence

Model

Kernel Function

• QuinticWendland Kernel (C2)

Pressure Term Approximation

• Tait’s Equation

APPLICATIONS


Civil Engineering Water Resource

Review the design of water facility and

prevent disasters and catastrophe

Large floods of dams and rivers caused by heavy rains

and torrential rains can lead to loss of indirect social

capital, as well as damage to personal property and life.

Simulation of water facilities, such as dams, reservoirs,

and streams, is now essential to prevent significant

damage. NFLOW SPH assists in verifying water facilities,

assessing their risks, and preparing mid- and long-

term plans and management measures for various

situations.

Review and suggest optimized design of

vulnerable section of road

Flood and waterlogging have been reported continuously.

To prepare for this problem, we are redesigning the

drainage system. However, designs that rely on existing

one-dimensional design guidelines are difficult visualize,

so proper design is difficult and re-immersion occurs.

NFLOW SPH can check the water flow and drainage

flow of existing drainage facilities through 3D simulation

and suggests the proper size of drainage structure in

case of flooding situations.

Civil Engineering

CASE STUDY

Simulation of Fluid velocity changeaccording to drainage structure


• Number of Particles: 2,000,000• Analysis Time: 600s

• Number of Particles: 500,000• Analysis Time: 600s

Proposal of road drainage and structure design using NFLOW SPH

NFLOW SPH not only verifies the current status of drainage facilities at the design stage, but also prevent errors in

advance. It proposes optimized designs of ordinary structures by immediately identifying problems.

Tunnel / Horizontal drainage facility

Civil Engineering

CASE STUDY




Identify the flow and congesting area of fine dust using NFLOW SPH

By using NFLOW SPH, it is possible to analyze the flow and congestion of fine dust from the construction stage of large-

scale complexes such as apartment complexes. Therefore, it provides an optimized introduction for fine dust reduction and

to define the installation location of reduction facility.

Fine dust flow inside theapartment complex Fine dust flow due to wind speed

Water Resource

Verification and Prediction of Water Resource facilities using NFLOW SPH

With NFLOW SPH, various information in real time such as flow rate, storage of water and demand of water facilities can

be checked. In addition, it is possible to assess the risks of water facilities in extreme weather such as heavy rains, and

prevent disasters in advance by simulating the expected damage areas caused by collapse and landslides.

CASE STUDY


• Number of Particles: 50,000,000 • Analysis Time: 240s

• Number of Particles: 50,000,000• Analysis Time: 120s

Tsunami SimulationCompare water speed according to

opening floodgate

Review product safety and efficiency in

complex marine phenomena

The marine industry should consider various factors to

examine the performance, safety, and efficiency of the

product, which is very expensive when conducting

experiments with real models. Prototypes are also

needed for various devices such as ballast water.

Under these circumstances, NFLOW SPH was

developed as a solver applicable to the marine industry.

In the offshore industry, the design process is complex

and needs expert knowledge. But NFLOW SPH

enables fast and accurate design.

APPLICATIONS


Marine & Offshore Manufacturing

Review adequacy of mechanical design

Global competition is accelerating, and companies face

challenges such as lower development costs, shorter

development times, and improved quality to deliver

better products and services. Engineers strives to find

the optimal design and give their customers confidence.

NFLOW SPH offers solutions for optimal design to solve

these engineers’repetitive and chronic problems.

Marine & Offshore

CASE STUDY


Simulation results of flow in BWMS using NFLOW SPH

By analyzing the average pressure and speed inside the pipe using NFLOW SPH, the seawater flow of the ballast pump in

the vessel was computed. The simulation was conducted to identify the problems in the design and to propose the optimal

design.


MarinoBnC(KT Marine), Simulate Fluid Flow inside BWMS

Manufacturing

CASE STUDY


NFLOW SPH for ideal design

Use NFLOW SPH to assist in the design of products produced by the machinery and manufacturing industries. Simulation

allows you to create the desired design model by adjusting parameter values such as the flow, pressure, and velocity of

the fluid flowing inside the structure.

• Number of Particles: 111,750 • Analysis Time: 63s


Cyclone SImulation Siphon Simulation

APPLICATIONS


Aeronautics & Aerospace

Overhaul the design process with reliable

simulation software for the aerospace industry

In the aerospace industry, issues of environment,

technology, and security are becoming more important,

but high cost is a constraint. NFLOW SPH provides

simulations to solve technical problems such as aircraft

design, noise reduction and fuel problems based on

accurate numerical analysis

Automotive

Improve the reliability and efficiency of design

in terms of technology and environment

Recently, the automotive industry is facing problems of

fuel consumption, safety and environmental pollution.

More innovative technologies are needed to solve these

problems. Therefore, a design that guarantees safety

and reliability is required, and efforts are required to

produce it cost-effectively. As the 4th Industrial

Revolution digitizes the design and manufacturing

process, automotive designs are utilizing the fluid

dynamics simulation of NFLOW SPH rather than proto-

type test.

Increasing demand ofthermal, gas simulation in various industries

High market demand for heat and gas-based simulations, especially in the automotive, aerospace, energy, and construction sectors requiringthermal conduction analysis, turbulence analysis, and air conditioning simulations.

Excellentcost performance than other products

Full release In 2019

Increasing demand for price-competitive CFD software compared few existing LBM-CFD software

Currently, we provide analysis solutions by applying both SPH and LBM solvers when requesting BMT, and the full release of NFLOW LBM is scheduled for 2019

Conventional mesh-based CFD is a Eulerian technique that divides the simulation space into

an arbitrary grid to approximate the Navier-Stokes equations in each discrete cell. It takes a

lot of time and effort to create a highly reliable grid to analyze the structure and fluid flow area.

Furthermore, conventional CFDs can be limited in solving the physics of unsteady flows by

analyzing steady state flows.

LBM, which is recently gaining popularity in the CFD industry, can calculate time-dependent

values by calculating the probability distribution over particle velocity. NFLOW LBM has much

simpler pre-process than Navier-Stokes Equations-based CFD solutions. LBM is a new

solution that goes beyond the limitations of existing CFD solutions, especially when combined

with NFLOW based on GPU parallel computing techniques..

WHY NFLOW LBM?


Lattice Boltzmann Method


• Performs computation by discretizing Boltzmann Equation that simulates the movement of fluid

• Specialized in modeling and computing phase separation, evaporation, condensation and

heat transfer

• Parallelism is easy as only local computations are used

• Fast calculation speed and can be used in various industries such as biology and

semiconductor

Newton Equation

• Fluid Technology at micro scale

• Movement of every single molecule

Microscopic scale

Boltzmann Equation

• Fluid Technology at meso scale

• Properties as an aggregate

of particles

Mesoscopic scale

Navier-Stokes Equations

• Fluid Technology at macro scale

• Calculation method such as FVM, FDM

• SPH also corresponds to this scale

Macroscopic scale

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Automotive

Solution for Automotive Application

As electric cars and luxury car markets are increasing

due to interest in equipment for fuel efficient vehicles,

NFLOW LBM is a CFD software for aerodynamics and

thermal system analysis in automotive industry.

• Exhaust system aerodynamic for wheels, suspensions, etc.

• Exhaust system analysis of heat flow

• Exhaust system of air condition system

APPLICATIONS


Aerospace

Solution for Aerospace Application

The demand for simulation is also increasing due to the

needs of R&D in aerospace industry. Aircraft manufacturing

companies use CFD for wind tunnel testing and flight

testing to check the performance of designed products.

It is also used to design external aerodynamics, fuel

systems, engine core compartments, missiles, cockpit

and cabin ventilation, and submarines

• Analysis of air flow around the wing

• Computation of heat flow

• Analysis of flight motion movement

• Fan and wing efficiency

Electronics

APPLICATIONS


Energy

Solution Energy Application

As competition in the energy market is intensifying,

companies are using CFD for efficient work processes.

NFLOW LBM provides simulation results in various fields

such as heating furnace, nuclear reactor, blast furnace

power generation to hydropower, nuclear power, and

renewable energy generation. Therefore, cost and time

for design can be saved, and errors can be predicted

in advance.

• Wind Turbine Simulation

• Heat load simulation

• Oil and gas flow analysis

Solution for Electronics Application

As smartphone R&D has grown into an important area

in China. Japan and Taiwan, electrical electronics has

become important checking for heat and pressure

changes in components. In addition, Companies are

using CFD to increase work process efficiency

• Freezing cycle simulation

• Analysis of heat flow for product

• Rotor dynamic analysis

Biomedical Engineering

APPLICATIONS


Solution for Biomedical Application

For microfluidic and non-Newtonian fluids, it is difficult to simulate with conventional CFDs, but for LBMs approaching as a

Mesoscopic perspective, it is easier to simulate the behavior of non-Newtonian fluids than ordinary CFDs. It is possible to

shorten the treatment time by fast analysis using LBM, which takes several hours from conventional CFDs. In addition, more

accurate examinations can reduce misdiagnosis and unnecessary incisions.

• Cardiovascular Disease Prediction

• Cell Pathway Prediction

• Colloidal System Analysis

FastTechnical Support

E8IGHT has a technical support team consisting of experts in CAE and CFD who quickly identify the cause of requests and provide precise diagnosis and solutions. Technical support is provided via online documenta, email and remote support.

ConstantUserEducation

E8IGHT provides continuous and systematic education and training programs and custom services to ensure customers have smooth and seamless user experience and product utilization experience.

Free Trial Program

Upon request, a trial version of NFLOW is provided to clients to enable clients to experience the product before executing a purchase. *Functionally, during trial product usage may be limited.

ProductandPurchasing Inquiries

Product and purchase inquires can be placed with E8IGHT’s regional partner network

Documents

2019 E8IGHT co.,ltd. All rights reserved....Faster analysis with GPU parallel computing technology Improve performance with multi-graphics devices (Multi-GPUs) and speed up workflows