FLIGHT EXPERIMENT BOLT 2: SIMULATIONS AND CHARACTERIZATION OF THE TURBULENT FLOW REGIME
Abstract
We propose to perform high-fidelity direct numerical and large-eddy simulations and characterize the turbulent flow regime on the geometry proposed for the US Air Force flight experiment BoLT 2 with the following specific goals to: Match the conditions of the TXA&M and T9 experiments at Mach 6 and Mach 10, respectively; Characterize the turbulent boundary layer and the role of the vortical flow instabilities that originate from the bow shock curvature upstream and the thickenning of the centerline boundary layer; Characterize the vortical flow instabilities, their evolution, persistence and/or breakdown in the regime where the boundary layer becomes turbulent and their effect on the turbulent boundary layer; And study the effect of Mach number and Reynolds number on the hypersonic flow fields. This work is central to the advancement of hypersonic flight technology by developing foundational knowledge of complex three-dimensional hypersonic boundary layers, the interplay of inviscid flow instabilities with the turbulent boundary layer flow, and the strong interplay between Mach number and Reynolds number that exists in hypersonic boundary layers.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2021
- Source ID
- FA95502010085
Entities
People
- Pino Martin
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Maryland