A NEW DIFFUSING-VORTEX NUMERICAL SCHEME

Award Information

Agency: National Science Foundation

Branch: N/A

Contract: N/A

Agency Tracking Number: 7517

Amount: $49,000.00

Phase: Phase I

Program: SBIR

Solicitation Topic Code: N/A

Solicitation Number: N/A

Timeline

Solicitation Year: N/A

Award Year: 1988

Award Start Date (Proposal Award Date): N/A

Award End Date (Contract End Date): N/A

Small Business Information

Intelligent Systems Research, Inc.

3801 Eubank Ne Suite 201

Albuquerque, NM 87111

United States

DUNS: N/A

HUBZone Owned: No

Woman Owned: No

Socially and Economically Disadvantaged: No

Principal Investigator

Name: DR TIMOTHY J ROSS
Phone: () -

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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A NEW DIFFUSING-VORTEX NUMERICAL SCHEME