CFD Analysis of Rocket Plume Effects on Ejection Seat Aerodynamics

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$70,000.00
Award Year:
1995
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
28576
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Combustion Research & Flow
174 North Main Street, Bldg., 3 P.o. Box 1150, Dublin, PA, 18917
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Sanford M. Dash
(215) 249-9780
Business Contact:
() -
Research Institution:
n/a
Abstract
Existing technology for the 3D CFD analysis of rocket plume/aerodynamic interactions will be specialized to the ejection seat problem. Present technology includes a 3D Navier-Stokes code, CRAFT, with detailed plume thermochemistry and multiphase flow and with turbulence models specialized to the complex plume environment. A struc- tured version with advanced Roe/TVD finite-volume numerics is operational at sev- eral government facilities (MICOM, NSWC, ARL) in support of plume/aerodynamic in- teractive problems. New unstructured and hybrid versions for complex multi-body problems (stage separation, launcher interactions, etc.) are operational with further development underway. Task 1 will demonstrate the applicability of pres- ent technology to rocket plume/ejection seat aerodynamics, including the performance of "scope-out" computational studies focussing on areas of most uncertainty (e.g. transient turbulence modeling/vortex shedding).

* information listed above is at the time of submission.

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