Accession Number : ADA470282


Title :   Code Validation Studies of High-Enthalpy Flows


Descriptive Note : Final technical rept. 1 Jan 2004-31 Dec 2006


Corporate Author : MINNESOTA UNIV MINNEAPOLIS DEPT OF AEROSPACE ENGINEERING AND MECHANICS


Personal Author(s) : Candler, Graham V ; Nompelis, Ioannis


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a470282.pdf


Report Date : Dec 2006


Pagination or Media Count : 69


Abstract : During the past three years, we have worked to develop and analyze a high-enthalpy flow dataset for CFD code validation. In collaboration with CUBRC Inc. personnel, we designed the experimental conditions for the double-cone geometry used in previous low-enthalpy nitrogen tests. We then used our standard CFD codes and thermo-chemical models to analyze these flows. In general, the comparisons with nitrogen flows are good, even at high enthalpy (10MJ/kg). But the comparisons between predictions and experiments for air above 5MJ/kg is poor. We find that as the enthalpy increases, the agreement gets worse. In particular, the CFD predicts that the separation zone decreases in size much more rapidly than given in the experiments.


Descriptors :   *VALIDATION , *COMPUTATIONAL FLUID DYNAMICS , *HYPERSONIC FLOW , *ENTHALPY , EXPERIMENTAL DATA , GEOMETRY , REYNOLDS NUMBER


Subject Categories : Fluid Mechanics
      Thermodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE