Heat Transfer and Pressure Distributions on Re-Entry Nose Shapes in the VKI Longshot Hypersonic Tunnel
Abstract
Heat transfer and pressure distributions have been made on five vehicle nose shapes in the VKI Longshot free piston wind tunnel at M=15 and 20. The flow parameters achieved closely simulate aerodynamic re-entry conditions. The models used in the study were 50-58 degree biconic configuration, with sharp-and blunt-nosed versions and a sharp-nosed version with a machined roughness, and a hemisphere configuration with a smooth and a sand-blast rough surface. These configurations resemble the stable shapes of turbulent and laminar ablating nose cones. Preliminary comparisons have been made with the state-of-the art engineering predictions. Some discussion about the state of the boundary layer is included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1971
- Accession Number
- AD0743836
Entities
People
- Bryan E. Richards
- Jozef Slechten
- Salvatore Culotta
Organizations
- von Kármán Institute for Fluid Dynamics