NASA-developed CFD codes are heavily used by a number of private companies and organizations within the aerospace and defense industries. Engineers at these corporations and government laboratories rely on the accuracy of NASA CFD tools in the development of small business jets, commercial airliners, and next generation fighter aircraft. Error quantification is a necessity widely recognized by this community. To date, research in error quantification has largely been limited to academic research groups and government laboratories, and no commercially available package for error quantification and reduction currently exists. This offers a unique opportunity to assume the leading role as the first player in the market for such software. Outside of the aerospace and defense sectors, the proposed error quantification research finds ready application in the areas of biofluid flows, automobile engines, power generation and turbomachinery, chemical processing, etc.
The proposed research is directly relevant to the application of CFD analysis to air vehicles of current and future interest to NASA. CFD simulations are playing an increasing role in air vehicle analysis and design assessment, and numerical predictions often supplement the databases obtained in ground and flight tests. The proposed research will impact the use of CFD analysis tools by NASA personnel in verifying the accuracy of force and moment predictions, surface pressures, heat flux distributions, etc., providing numerical error bars and certifiable confidence levels. As the research effort addresses fundamental issues in numerical simulation accuracy, numerous applications of interest to NASA exist. Potential applications of the proposed error quantification research include simulation of launch vehicles, planetary re-entry capsules, attitude control jets, liquid fuel feed systems, etc.