Project SQUID: The Princeton Pilot Variable Density Supersonic Wind Tunnel
Abstract
The design and operation of the pilot variable density supersonic wind tunnel of Princeton University's Aeronautical Engineering Laboratory are discussed in some detail. The tunnel, with a 1 x 2.5 inch test section, is designed to operate with stagnation pressures up to 500 psi at Mach numbers from 1.5 to 5.0. It is of the blow-down type, but uses a pressure control system to keep the stagnation pressure constant during a test. Schematic drawings of the equipment and photographs are presented and a short discussion of the preliminary tests is included. The main result is the observation of a transient at starting due to heat transfer effects. This transient can be almost completely eliminated by precooling the tunnel with a small amount of cold air. Operation of all equipment was satisfactory.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 29, 1948
- Accession Number
- ADA952989
Entities
People
- Seymour M. Bogdonoff
Organizations
- Princeton University