Abstract: In this paper，numerical simulation and parallel computation of three dimensional flow field of subsonic plane is done using Cart3D.The flow field of the plane nearby and the parallelization of this software on high performance SMP workstation are achieved.By comparing the computing results of different commercial CFD software，the validity of parallel numerical simulation using Cart3D is verified，thus to provide technical reference for large scale computing in scientific and engineering applications.

摘要： 利用CFD商用软件Cart3D对亚声速飞行飞机的三维绕流流场进行了数值模拟以及并行计算，得到了飞机附近的流场，实现了此软件在高性能并行计算机上的并行；通过对比不同商用软件的计算结果，验证了用Cart3D软件进行数值模拟的有效性，为大规模科学工程计算提供了技术参照。