The Validation of the WL/FIM Trisonic Gasdynamic Facility for Exhaust Nozzle Testing
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
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1992
- Accession Number
- ADA266238
Entities
People
- Robert D. Gillgrist
Organizations
- Wright Laboratory