This technology will provide NASA with an efficient, robust cryogenic cavitation simulation tool suitable for use in propulsion systems ground test facility component design and analysis as well as other in advanced applications. The research product will provide enabling engineering and scientific technologies to predict complex cryogenic flow problems with nonequilibrium cavitation, resulting in reduced ground test facility costs and system risk by increasing test productivity. Potential enhancements include modified treatment of evaporation and condensation rates, turbulence/cavitation interaction modeling, detailed liquid/vapor thermal interface effects, variable transport properties, expanded thermodynamic databases and extended model validation. The proposed cavitation modeling tool is also applicable to hydrogen inducers, impellers and pumps operating at high vapor fraction.
The growing trend toward coupled multi-physics analyses is opening significant new markets as more difficult problems can be addressed using advanced computational techniques. The ability to robustly model complex cryogenic flows with cavitation will allow the commercial aerospace and defense industries to improve design and development of new products and streamline ground testing. Our analysis software can also be applied in the fields of medicine (magnetic resonance imaging), food processing (ultrasonic freezing) and semiconductor processing (plasma etching and vacuum pumping of gas contaminants). The basic architecture of the modeling framework can remain the same while new plug-in modules are developed to address different physics and design requirements.