UNSTEADY, COMPRESSIBLE FLOWS IN INTAKES AND NOZZLES

Award Information

Agency: National Aeronautics and Space Administration	Branch: N/A	Award ID: 572	Program Year/Program: 1984 / SBIR
Agency Tracking Number: 572	Solicitation Year: N/A	Solicitation Topic Code: N/A	Solicitation Number: N/A

Small Business Information: G M A F Inc
Po Box 84 Freeport, NY 11520
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Woman-Owned: No

Minority-Owned: No

HUBZone-Owned: No

Phase 2: Fiscal Year: 1984

Title: UNSTEADY, COMPRESSIBLE FLOWS IN INTAKES AND NOZZLES

Agency: NASA

Contract: N/A

Award Amount: $373,007.00

Abstract:
THIS PROJECT APPLIES NEW, EFFICIENT, ALGORITHMS TO COMPUTER CODES THAT WILL DESCRIBE THE COMPLICATED DETAILS OF TRASONICFLOW IN ENGINE INTAKES AND NOZZLES. THE EMPHASIS IS ON THE ABILITY OF THE CODES TO DESCRIBE UNSTEADY EFFECTS. GREAT ACCURACY IS PROVIDED BY A SECOND-ORDER INTEGRATION TECHNIQUEBASED ON THE CONCEPT OF CHARACTERISTICS (LAMBDA-SCHEME) AND COUPLED WITH TRACKING OF DISCONTINUITIES. THE VISCOUS CALCULATIONS ARE PERFORMED BY A COMBINATION OF THE INVISCID CODE AND A TREATMENT OF ALL VISCOUS TERMS ON A STRETCHED GRID. INVISCID CALCULATIONS BASED ON THE SAME CONCEPTS ARE SUCESSFULLY PERFORMED IN ONE-DIMENSIONAL PROBLEMS. IN PHASE I THE FEASABILITY IS STUDIED BY PERFORMING SAMPLE CALCULATIONS ON ONE INLET GEOMETRY. A STUDY AND DISCUSSION OF COMPUTATIONAL GRIDS IS PROVIDED.

Principal Investigator:
Gino Moretti
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Business Contact:

Small Business Information at Submission:

G.m.a.f. Inc.
P.o. Box 184 Freeport, NY 11520

EIN/Tax ID:

DUNS: N/A

Number of Employees: N/A

Woman-Owned: No

Minority-Owned: No

HUBZone-Owned: No