Subsonic Gas Flow

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Subsonic Gas Flow

 

a flow in which the speed of the gas particles in the region being examined is less than the local values for the speed of sound. If the speed of the particles is far less than the speed of sound (for example, not over 100 m/sec), the change in gas density may be ignored—that is, the gas may be considered as incompressible.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Professor French and his students wanted to develop a demonstration of how a de Laval nozzle (also called a convergent-divergent nozzle) converts subsonic gas flow into supersonic flow.