Establishing Best Practices for X-57 Maxwell CFD Database GenerationThe X-57 Maxwell is NASA’s latest electric airplane concept that has been simulated for aerodynamic performance using the structured overset and unstructured grid solvers within the Launch Ascent and Vehicle Aerodynamics (LAVA) solver framework as well as the unstructured polyhedral grid solver in Star-CCM+ for code-to-code comparison. In order to validate the predictions, comparisons were made between the CFD solutions and experimental data collected in the 12-foot Low-Speed Wind Tunnel at NASA Langley Research Center. The simulations are in preparation for the development of a comprehensive aerodynamic database which will assess aircraft performance at a variety of conditions. The findings from these simulations will establish the best practices for mesh resolution, numerical discretization, and turbulence modeling to be used for this database. Preliminary database results have shown that best-practices learned from the initial validation simulations will potentially reduce error in X-57 aerodynamic loads and moments relative to experiment by up to 14%.
Document ID
20190000385
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Duensing, Jared C. (Science and Technology Corp. Moffett Field, CA, United States)
Yoo, Seung Y. (NASA Armstrong Flight Research Center Edwards, CA, United States)
Maldonado, Daniel (Science and Technology Corp. Moffett Field, CA, United States)
Housman, Jeffrey A. (NASA Ames Research Center Moffett Field, CA, United States)
Jensen, James C. (NASA Ames Research Center Moffett Field, CA, United States)
Kiris, Cetin (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
February 5, 2019
Publication Date
January 7, 2019
Subject Category
Computer Programming And SoftwareAerodynamics
Report/Patent Number
ARC-E-DAA-TN64328
Meeting Information
Meeting: AIAA SciTech Forum 2019
Location: San Diego, CA
Country: United States
Start Date: January 7, 2019
End Date: January 11, 2019
Sponsors: American Inst. of Aeronautics and Astronautics