Numerical analysis on spray formation near the nozzle hole of diesel nozzle

Abstract

Doshisha University In order to simulate the spray near the diesel nozzle with high accuracy, the experimentally observed liquid column region where the velocity at the spray does not decay, and the time-series change of the spray angle are expressed by changing a droplet drag model and spray angle value in numerical calculation depending on time and space. As a result, it is considered that the spray characteristics near the nozzle hole were reproduced with