Hypersonic Turbulent Wall Heat Transfer Prediction and Validation ONR Simulations
Abstract
The objective of this proposal is improved accuracy in the prediction of the wall heat transfer for high Reynolds number turbulent hypersonic flow with cold walls (TW/TAW < 0.2) and 3-D pressure gradients. The approach to meet this objective includes two complementary goals. The first goal is focused on adding the turbulent energy flux closure model into the computational fluid dynamics code US3D, with an assessment over a range of wall temperatures and 3-D pressuregradients. This goal includes new formulations to improve the accuracy for hypersonic 3-D pressure gradient flows, which directly addresses requirements identified by ONR. This step has the potential to be impactful as US3D is used broadly by the DoD and its contractors. The second goal, which is the subject of a separate complimentary proposal is submitted to the US Air Force Academy,is focused on creating a new experimental database including boundary layer profiles of the mean flow, turbulence statistics, as well as surface heat transfer (mean and fluctuations) and skin friction to validate modeling. The focus is 3-D pressure gradient (e.g., ogives) flows. These data will provide new benchmarks for practical hypersonic flow geometries. Detailed comparisons and assessments will also be made against existing data and models in the literature. The PI will also work with the US Air Force Academy to include the present modeling in their codes, for example Kestrel, which is part of the Computational Research and Engineering Acquisition Tools and Environments(CREATE) Program, which is part of the DoD High Performance Computing Modernization Program Office.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 23, 2019
- Source ID
- N000141912038
Entities
People
- Rodney D W Bowersox
Organizations
- Office of Naval Research
- Texas Engineering Experiment Station
- United States Navy