Studies in Pressure Drop with Lateral Mass Extraction: First Paper: Pressure Gradients for Air Flowing along Porous Tubes with Uniform Extraction at the Walls

Abstract

Experiments are described in which the pressure drop and pressure gradient were measured for air flowing through porous tubes with uniform extraction at the walls. A simple correlation is derived and is shown to be approximately consistent with the theoretical work of Silver (1)†. The results may be of particular interest to designers of condenser equipment in which pressure changes are important.