Software for Automated Generation of Reduced Thermal Models for Spacecraft Thermal Control

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CD76P
Agency Tracking Number: 094564
Amount: $99,875.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: S3.02
Solicitation Number: N/A
Small Business Information
CFD Research Corporation
215 Wynn Drive, 5th Floor, Huntsville, AL, 35805-1944
DUNS: 185169620
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Yi Wang
 Principal Investigator
 (256) 726-4800
 yxw@cfdrc.com
Business Contact
 Silvia Harvey
Title: Document Specialist
Phone: (256) 726-4800
Email: sxh@cfdrc.com
Research Institution
N/A
Abstract
Thermal analysis is increasingly used in thermal engineering of spacecrafts in every stage, including design, test, and ground-operation simulation. Current high-fidelity modeling and simulation tools are computationally prohibitive and not fully compatible to integrated, multi-physics (e.g., thermal-structural-optical) analysis of spacecrafts, particularly in a single model topology currently being pursued at NASA. NASA engineers are challenged with developing innovative reduction algorithms and models that enable rapid analysis while retaining adequate accuracy. To address this need, we propose to develop and demonstrate innovative Model Order Reduction (MOR) software to automatically generate nonlinear reduced thermal models for spacecraft analysis. The underlying principle is to project the original large models onto a characteristic, low-dimensional subspace (SVD or Krylov subspace), yielding reduced models with markedly low computational orders. In Phase I, a MOR engine encapsulating carefully selected algorithms, a reduced model solver, and a verification module, along with facile data export interfaces will be developed in an integrated software environment. Proof-of-concept will be established by broad case studies, in which reduced models will be analyzed and compared against large model analysis using CFDRC-developed multi-physics simulation tool CFD-ACE+ in terms of accuracy, speed, and resource use. Phase II will focus on enhancing the MOR engine, optimizing the software structure, and expanding interfaces to other NASA-relevant tools.

* information listed above is at the time of submission.

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