A NEW DIFFUSING-VORTEX NUMERICAL SCHEME

Award Information
Agency:
National Science Foundation
Branch:
N/A
Amount:
$49,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase I
Contract:
N/A
Agency Tracking Number:
7517
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Intelligent Systems Integratio
3801 Eubank Ne Suite 201, Albuquerque, NM, 87111
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 DR TIMOTHY J ROSS
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
A DIFFUSING-VORTEX METHOD, FOR SOLVING THE TWO-DIMENSIONAL INCOMPRESS NAVIER-STOKES EQUATION, WILL BE EXTENDED AND APPLIED TO THE EXTERNAL INCOMPRESSIBLE VISCOUS FLOW OVER A GENERALLY SMOOTH BLUNT BODY. THE NUMERICAL ADVANTAGES OVER OTHER LAGRANGIAN VORTEX METHODS WILL BE FURTHER DEMONSTRATEDBY REDUCING TOTAL CPU TIME AND BY AVOIDING CUT-OFF PROCEDURES. THE NEW APPROACH WHICH IS AN APPROXIMATE EXPRESSION OF THE GREEN'S FUNCTION OF THE DIFFUSION EQUATION, WILL BE CONSTRUCTED FOR A GENERAL TWO-DIMENSIONAL SMOOTH CONTOUR AT A HIGH REYNOLDS NUMBER. A BENCHMARK CASE,THE CYLINDER PROBLEM WILL BE USED TO EXAMINE THE ACCURACY OF THE CODE AND THE EFFECT OF SPATIAL MESH LENGTH AND TIME STEP LENGTH ON COMPUTATIONAL RESULTS.

* information listed above is at the time of submission.

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