Session: 5.1.1 - Advanced thermal-flow diagnostic techniques - I

Paper Number: 172055

172055 - Hypersonic Turbulent Quantities and Drop Aerobreakup/Impact 

Abstract: 

Aerodynamic drag and heat transfer must be accurately predicted to design a high-speed vehicle. Doing so requires a physical understanding of supersonic/hypersonic turbulence and, relating to weather encounter, multiphase flow physics. The first part of the talk will discuss efforts to obtain data to support Morkovin’s hypothesis, which is foundational to our understanding of high-speed turbulence. It states that “we can expect with confidence that the essential dynamics of these supersonic shear flows will follow the incompressible pattern.” We will present new data supporting this hypothesis at Mach 6. In the second part of the talk, we will present new aerobreakup data that were obtained by observing the flow about a railgun-launched projectile as it processed an ultrasonically levitated water drop. Linear- and nonlinear-stability analyses were made and the results are compared to computations.

Presenting Author: Nick Parziale Stevens Institute of Technology

Presenting Author Biography: