SBIR 95-1 SOLICITATION
AN ADVANCED MODELING CODE FOR TRANSIENT TWO-PHASE SYSTEMS
Existing computer software for modeling two-phase flow and heat transfer transients for spacecraft thermal management systems is inadequate in two major respects. Multiphase models are inaccurate, outmoded, or poorly implemented. The codes themselves are cumbersome to use, requiring extensive training, i.e. not oriented to the engineer routinely designing systems and running experiments. Using state-of-the-art methods in multiphase modeling and software design, we propose to construct a compact, fast, and easy to use tool widely accessible to designers, analysts, and experimentalists on their desktop PCs. The innovative software package will include efficient and accurate numerical solution procedures, fundamental mechanistic models for two-phase flow with heat transfer for variable gravity, and a modern graphical user interface. In Phase I, we will develop a proof-of-principle numerical solver and demonstrate the speed and accuracy of our modeling approach. In Phase II, we will integrate this solver with a fluid property database and graphical user interface. The codes microgravity physics will be designed for rapid upgrade, providing a useful tool to NASA for design or analysis of two-phase systems and a means for disseminating ongoing NASA microgravity research results.
Potential Commercial Applications:
Commercial application of the software in the aerospace industry will include design, development and evaluation of two-phase thermal management, power, and cryogenic systems by NASA, the Air Force, and their industrial contractors. Beyond aerospace, the system code will have markets in power cycle, refrigeration and air conditioning, oil and gas transport, fire suppression systems, and process chemical design. We have targeted system design for a revolutionary power conversion system involving a multi-component, two-phase working fluid. This concept is spawning a complete rethinking of power cycle system design, and we have the opportunity to develop the system design tool for this growth industry.
Name and Address of Offeror:
P.O. Box 71
Hanover, NH 03755
Small Business Innovation Research Program (SBIR) &
Small Business Technology Transfer Program (STTR) Programs
Electronic Management System (EMS)
National Aeronautics and Space Administration (NASA)
The SBIR/STTR EMS site is maintained by Steve
Hu, Hughes STX.
For comments and questions, contact
Updated: Feb. 7, 1996