Accession Number : ADA593043


Title :   Hypersonic Transition and Turbulence with Non-Equilibrium Thermochemistry


Descriptive Note : Final rept. 1 Jun 2004-31 May 2009


Corporate Author : TEXAS A AND M UNIV COLLEGE STATION


Personal Author(s) : Girimaji, Sharath ; Bowersox, Rodney ; North, Simon ; Reed, Helen ; Austin, Joanna ; Elliott, Gregory ; Lucht, Robert ; Luo, Lishi


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a593043.pdf


Report Date : 31 Aug 2009


Pagination or Media Count : 194


Abstract : The objective of the completed MURI project was to develop various fundamental building blocks required for assembling a reliable predictive capability for hypersonic turbulent flows in Non-Thermochemical-Equilibriiun (NTE) state. A coordinated three-pronged approach addressing fundamental characterization, physics comprehension and computational prediction of hypersonic NTE turbulent flows has been completed. The main contributions from the completed works are: (1) development of a modular theoretical and computational framework for addressing NTE turbulence: (2) identification of the fundamental physical mechanisms that render NTE mrbulence different from standard incompressible turbulence: (3) compilation of experimental and numerical databases in homogeneous and canonical flows that highlight nonequilibrimn and compressibility effects: (4) proposal of closure models at various degree of sophistication: (4) development of new laser diagnostic techniques developed specifically for characterization of hypersonic NTE mrbulence; and (6) preliminary integration of numerical methods and mrbulence models for efficient CFD simulations. Overall, the completed work should result in crucial improvement in the predictive capabilities.


Descriptors :   *HYPERSONIC CHARACTERISTICS , *HYPERSONIC FLOW , *TURBULENT FLOW , ASSEMBLY , COMPRESSIVE PROPERTIES , COMPUTATIONS , DATA BASES , DIAGNOSIS(GENERAL) , EFFICIENCY , FLOW , INCOMPRESSIBILITY , INTEGRATION , LASERS , MODELS , MODULAR CONSTRUCTION , NONEQUILIBRIUM FLOW , NUMERICAL ANALYSIS , PHYSICAL PROPERTIES , PHYSICS , PREDICTIONS , RELIABILITY , SIMULATION , THERMOCHEMISTRY , TRANSITIONS , TURBULENCE


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE