In order to simulate and analyze the dynamic characteristics of the parachute from advanced tactical para-chute system (ATPS) ,a nonlinear finite element algorithm and a preconditioning finite volume method are em-ployed and developed to construct three dimensional parachute fluid-structure interaction (FSI) model .Parachute fabric material is represented by membrane-cable elements ,and geometrical nonlinear algorithm is employed with wrinkling technique embedded to simulate the large deformations of parachute structure by applying the Newton-Raphson iteration method .On the other hand ,the time-dependent flow surrounding parachute canopy is simulated using preconditioned lower-upper symmetric Gauss-Seidel (LU-SGS) method .The pseudo solid dynamic mesh al-gorithm is employed to update the flow-field mesh based on the complex and arbitrary motion of parachute canopy . Due to the large amount of computation during the FSI simulation ,massage passing interface(MPI) parallel com-putation technique is used for all those three modules to improve the performance of the FSI code .The FSI method is tested to simulate one kind of ATPS parachutes to predict the parachute configuration and anticipate the para-chute descent speeds .The comparison of results between the proposed method and those in literatures demon-strates the method to be a useful tool for parachute designers .
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