Abstract
The mass flow rate and the spray characteristics of an automotive fuel injector are substantially influenced by cavitation. It is therefore very useful to be able to perform the fuel flow analysis in nozzles using a numerical analysis method. To our knowledge, there is only one cavitation model until now that is proposed for Moving Particle Semi-implicit (MPS) method. This model, however, is relatively complicated and unstable due to using particles with a variable particle diameter. This paper describes a more simplified and stable cavitation model: the calculation algorithm for the growth of bubbles and the contraction and collapse of bubbles is not used. The validity of the proposed model is examined by the fuel flow analysis in a Schmitt’s nozzle. The simulation results for a mass flow rate are in good agreement with the experiment results. The images showing the flow state are generally consistent with them.
