Accession Number : ADA266238


Title :   The Validation of the WL/FIM Trisonic Gasdynamic Facility for Exhaust Nozzle Testing


Descriptive Note : Final rept. 1 Jan 1990-31 Mar 1992


Corporate Author : WRIGHT LAB WRIGHT-PATTERSON AFB OH


Personal Author(s) : Gillgrist, Robert D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a266238.pdf


Report Date : Apr 1992


Pagination or Media Count : 87


Abstract : The Wright Laboratory's expanding requirement for reliable resident exhaust nozzle testing capability necessitated the verification of the experimental capability of the Trisonic Gasdynamics Facility (TGF) located at Wright-Patterson Air Force Base. A validation test, directed toward the TGF's nozzle testing capability, compared surface pressure data taken from an axisymmetric AGARD reference nozzle from a wind tunnel test performed at the Propulsion Wind Tunnel (PWT) at Arnold Engineering Development Center (AEDC). Boattail pressure distributions and pressure drag measurements were compared between the facilities. Cross-sectional blockage caused significant differences between boattail pressures and pressure drag coefficients between facilities. Computational fluid dynamics (CFD) tools were used to aid understanding of differences found in the comparison study. A series of CFD simulations aimed at determining the actual freestream flow Mach number is recommended to improve flow simulating accuracy in the TGF.... Wind tunnel, Simulation, Drag, Validation, Boattail, Computational Fluid Dynamics(CFD), Pressure coefficient, Blockage


Descriptors :   *COMPUTATIONAL FLUID DYNAMICS , *JET FLOW , *EXHAUST NOZZLES , TEST AND EVALUATION , REQUIREMENTS , SIMULATION , MEASUREMENT , AIR FORCE , VERIFICATION , VALIDATION , TOOLS , PERFORMANCE(ENGINEERING) , COMPARISON , ACCURACY , GAS DYNAMICS , TUNNELS , SURFACES , ENGINEERING , SURFACE PROPERTIES , COEFFICIENTS , PRESSURE , WIND TUNNEL TESTS , AXISYMMETRIC , NOZZLES , MACH NUMBER , FLUID DYNAMICS , DRAG , BOATTAIL AFTERBODIES


Subject Categories : Aerodynamics
      Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE