Scavenging Model Solves Problems in Gas Burning Engine

An application of model tests based on laws of similarity is developed in this paper for the analysis of the scavenging and gaseous mixing process in gas-burning engines. Systematic tests disclosed that only the Strouhal model law and the density ratio between the substances involved (Euler's similarity law) are significant. It is also pointed out that fluids are particularly convenient for examination of the scavenging and mixing processes (simple quantitative measurement, and ease of visualization).

The model tests deliver qualitative and quantitative predictions on scavenging and mixture formation in the actual engine.