Combustion Instability Simulation and Analysis of a Solid Rocket Motor Testing Device based on LES Method

摘要

In this paper, we established a finite volume model under the request of grid scale for a SRM testing device, made a simulating on the inner flow of the device with WALE method, monitored the flowing parameters for given points in the device after the unsteady turbulence flow reaching statistical equilibrium. Through out date processing, we analysised the distribution of eddy intensity, the period property of eddy generating and disappearing in the testing device, and analysised the influence on the eddy property in the device by inner shape, acceleration and particles. It will help us making a special attention on the CI when we developing a similar SRM.