Three-dimensional simulation method for working process of supercharged diesel engine

The invention provides a three-dimensional simulation method for a working process of a supercharged diesel engine. The method is characterized in that on the basis of a three-dimensional simulation model of the process in a diesel engine cylinder, a three-dimensional model of a gas compressor and a turbine is added; in order to simulate transient work and response characteristics of a supercharger, an instantaneous angular acceleration is calculated through a force moment and a rotational inertia borne by a rotation part of the supercharger; and rotation speeds of a supercharger rotor at different moments are obtained through a time integral. According to the three-dimensional simulation method for the working process of the supercharged diesel engine, the three-dimensional model of three-dimensional model of is introduced, dynamic characteristics of each part of the supercharged diesel engine in the working process can be simulated really, the response of the supercharger can be detected and the matching ch