GOODNESS-OF-GRID: MEASURES

Award Information

Agency: National Aeronautics and Space Administration

Branch: N/A

Contract: N/A

Agency Tracking Number: 10522

Amount: $50,000.00

Phase: Phase I

Program: SBIR

Solicitation Topic Code: N/A

Solicitation Number: N/A

Timeline

Solicitation Year: N/A

Award Year: 1989

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

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

Small Business Information

Program Dev Corp-scarsdale Inc

5 Highland Way

Scarsdale, NY 10583

United States

DUNS: N/A

HUBZone Owned: No

Woman Owned: No

Socially and Economically Disadvantaged: No

Principal Investigator

Name: Peter R Eiseman
Phone: () -

Business Contact

Phone: () -

Research Institution

N/A

Abstract

DURING THE LAST FEW YEARS, NUMERICAL GRID GENERATION HAS EVOLVED AS A CRITICAL LINK IN THE CHAIN OF EVENTS LEADING TONUMERICAL SOLUTIONS OF PARTIAL DIFFERENTIAL EQUATIONS OF FLUID MECHANICS. HOWEVER, IT IS OFTEN (IF NOT ALWAYS) VERY DIFFICULT TO ASCERTAIN HOW "GOOD" A GIVEN GRID IS, PARTICULARLY FOR THREE DIMENSIONAL CONFIGURATIONS. THE PROPOSED RESEARCH EFFORT IS AIMED AT DEVELOPING TRUE QUANTITATIVE MEASURES OF A "GOOD" GRID ALONG WITH IMPROVEMENTS IN ADAPTIVE GRID STRATEGIES. THE FORMULATION OF THESE MEASURES WILL BE BASED ON THE GEOMETRIC CHARACTERISTICS OF THE FLOW FIELD REGION, VARIATIONS IN SOLUTION BEHAVIOR, AND NUMERICAL ALGORITHM UNDER CONSIDERATION. THE PROPOSED ANALYSIS WILL OFFER AN ABILITY TO SELECT AN "OPTIMAL" GRID ASSOCIATED WITH THE APPLICATION BEING ADDRESSED AND WILL PROVIDE DIAGNOSTIC TOOLS FOR GRID SYSTEMS.

* Information listed above is at the time of submission. *

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GOODNESS-OF-GRID: MEASURES