1950•Unpublished venueRequires access

Preliminary Investigation of Constant-geometry, Variable Mach Number, Supersonic Tunnel with Porous Walls

W. James Nelson, Paul L Klavatt

Abstract

Report presenting a method of generating variable Mach number supersonic flow in a channel of fixed geometry by the removal of air through uniform porous walls. Calculated porosity distributions are presented for several minimum-length nozzles designed to operate at Mach numbers up to 2.0. Experimental and analytical data is presented.

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Key concepts: Mach number, Supersonic speed, Porosity, Supersonic wind tunnel, Constant (computer programming), Geometry, Mechanics, Choked flow