Form 9.B Project Summary

Chron:

971575

Proposal Number:

06.10-4800A

Project Title:

Intelligent Solution Optimization Using

Artificial Neural Networks Applied to

Numerical Flow Solvers

Technical Abstract (Limit 200 words)

General purpose flow solvers are designed to treat

a wide class of fluid flow problems. Simulation of

any one particular class of problems is therefore

rarely optimized. Moreover, many algorithms

require frequent user monitoring and adjustment of

code parameters to ensure a successful run. A need

therefore exists to automatize code execution, with

concomitant run-time, problem dependent

optimization of the computational effort. Artificial

Neural Network (ANN) approach offers a natural

solution to this problem of "intelligent" algorithm

control. The networks inherent nonlinearity and

trainability allows the development of algorithm

control and optimization software capable of

self-tuning to any problem at hand. ANN-based

code optimization will be applied on two levels. High

level control will automatically determine the best

combinations of code parameters that determine

the most optimal overall simulation convergence

rates. Low level control will optimize performance

of individual computational modules. This project is

of direct benefit to NASA, as the work will result in

a new computational paradigm capable of radically

decreasing design cycles which rely on interaction

between simulations and hardware development.

Potential Commercial Applications (Limit 200 words)

Commercial potential for the developed software is

very high as it will allow, for the first time,

non-experts to use high fidelity CFD simulators. It

will also be of great interest to engineers who

routinely use flow simulators for hardware design,

as the software would significantly reduce

simulation times and increase throughput.

Name and Address of Principal Investigator (Name,

Organization Name, Mail Address, City/State/Zip)

Maciej Z. Pindera

CFD Research Corporation

215 Wynn Dr.

Huntsville , AL 35805

Name and Address of Offeror (Firm Name, Mail Address,

City/State/Zip)

Andrzej J. Przekwas

CFD Research Corporation

215 Wynn Dr.

Huntsville , AL 35805