Simulation of flow resistance characteristics of fluid mechanical system

In this paper, based on the software of fluent, the internal flow field of pipe is simulated by CFD, and the PISO algorithm based on pressure is used to solve the flow resistance of fluid under the influence of turbulence and viscosity coupling in the internal flow process. The flow-resistance and pipe diameter matching parameters of pipes with different types of typical specifications at different temperatures are obtained, which provides data support for the selection of pipe flow resistance and pipe diameter parameters in the system design. Based on CFD simulation results, the matching characteristics of pipeline flow resistance in hydraulic system are simulated, and the results strongly support the design of the system.