Tightly Coupled Simulations in the SRM with Large Aft-Fin
A three-dimensional fluid-structure interaction simulation code appropriate for SRM is presented. This code coupled Fortran95-based computational fluid dynamic (CFD) code and computational structure dynamic (CSD) code adopting the tightly coupled methods with subcycling based predict-correct scheme. For illustrating and validating the simulation and coupling capabilities of the numerical model, the cold-flow numerical test about a certain SRM with large aft-fin is modeled and calculated by this code. The results about the pressure in internal flows is constant well with the results which obtained via the commercial software Mpcci coupled Fluent and Abaqus. Then the ignition transient process of this SRM with different width of fins is numerically computed throughout this code which incorporated with combustion models. The results show that the affection of different width of fins are efficient influenced the pressure in the fin-slots which are higher than cylindrical section and the flame spreading velocity increased gradually with time in the cylindrical section. The SRM is much more fragile of narrower fin width. The simulation results of cold-flow and ignition transient of the SRM demonstrate the applicability of tightly coupled approach which is useful and important to the preliminary design of SRM
SRM large aft-fin fluid-structure interactions subcycling predict-correct tightly coupled
Gao Shuangwu Qiang Hongfu Zhou Wei Zhou Zhiqing
201 Staff, Xian Hi-Tech Institute,Xian, 710025, Shaanxi, China 201 Staff, Xian Hi-Tech Institute,Xian,710025, Shaanxi, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
1172-1175
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）