Shape parameterization and optimization of a two-stroke engine

We demonstrate a procedure for designing and optimizing the scavenging properties of a two-stroke engine, A method of surface design, known as the partial differential equation method, is used to represent the internal geometry of the engine. We then run steady-state computational quid dynamics calculations to assess the scavenging Row inside the engine. To quantify the scavenging, the trapping efficiency is used, and calculated values of this measure are obtained for different geometrical designs. We use a locally weighted regression-smoothing model to fit the data, and then we optimize the resulting response surface. The optimization captured two local minima, one of which corresponds to accepted manufacturing practice and the other one is a new and counter-intuitive way of scavenging the engine, having optimum scavenging characteristics.