Two-phase Flow in Jet Pumps for Different Liquids

Abstract

This research was performed to determine the performance of a jet pump when the viscosity and density of the primary (or power) liquid are different from the viscosity and density of the secondary (or pumped) liquid. Engineers face this problem in several engineering applications (1-2). Using one-dimensional assumptions, a theory has been developed (3-4) and validated (5-6) for jet pumps for water–water flow. The one-dimensional theory has been used (7-9) for two-phase flow in jet pumps. However, little research has investigated the use of two different liquids (10). The second objective of this research is to study the mixing process analytically and experimentally. The one-dimensional theory, was altered to account for difference of the viscosities and densities of the two liquids. Experimental verification of the theoretical results was carried out by tests to measure the performance of the jet pump and the wall static pressure variation along the mixing chamber.