Author(s)

Xiang Li, Biao Lei, Gege Song, Lili Shen and Yuting Wu

Corresponding Author

Yuting Wu

ABSTRACT

The simulation of this type of expander generally adopts empirical formula or one-dimensional numerical simulation due to the complicated meshing curves of single screw expander (SSE). However, these existing methods cannot obtain the distribution of pressure field and velocity field of fluid in the expander. In this paper, 3D solid modelling and dynamic grid technology are used to carry out numerical simulation of intake, expansion and exhaust process of single screw expander by CFD software. Besides, the distribution laws of pressure field and velocity field of single screw expander are acquired. This paper provides a new idea for the optimal design of single screw expander.

KEYWORDS

Single screw expander, CFD, dynamic grid, unsteady flow