Advanced Simulation Framework for Design and Analysis of Space Propulsion Systems

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,438.00
Award Year:
2010
Program:
STTR
Phase:
Phase II
Contract:
NNX10CB71C
Award Id:
90877
Agency Tracking Number:
080053
Solicitation Year:
n/a
Solicitation Topic Code:
T9
Solicitation Number:
n/a
Small Business Information
3221 NW 13th Street, Suite A, Gainesville, FL, 32609
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
090574786
Principal Investigator:
SiddharthThakur
Principal Investigator
(352) 352-8841
st@snumerics.com
Business Contact:
SiddharthThakur
President
(352) 271-8841
Research Institute:
Mississippi State University

449 Hardy Road, 133 Ethredge Hall
Mississippi State, MS, 39762
(662) 325-7397

Abstract
The innovation proposed here is a high-performance, high-fidelity framework in the computational fluid dynamics (CFD) code called Loci-STREAM to enable accurate, fast and robust simulations of unsteady multiphase flows such as combustion involving liquid-gas phases in liquid rocket injectors and solid-gas phases in solid rocket motors, and cryogenic cavitation in delivery systems of liquid rocket engines. This framework will provide a state-of-the-art multiphase unsteady turbulent flow simulation capability employing Hybrid RANS-LES (HRLES) methods which are a blend of Reynolds Averaged Navier-Stokes (RANS) and Large Eddy Simulation (LES) approaches. Robust primary atomization models for liquid jet breakup and both phenomenological and stochastic secondary droplet breakup models will be developed. Lagrangian particle tracking and Eulerian multiphase models will be coupled to enable simulation of multiphase combustion involving solid particles or liquid droplets. The work proposed here will result in a state-of-the-art design and analysis tool to enable the accurate modeling of: (a) multiphase combustion in solid and liquid rocket engines, (b) combustion stability analysis (c) acoustic fields of space propulsion systems in near-ground operation, (d) small valves and turbopumps, etc. which constitute critical components of versatile space propulsion engines part of NASA's space near- and long-term space programs.

* information listed above is at the time of submission.

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