基于流体仿真的试验舱的设计

The Design of Test Chamber Based on CFD

摘要: 随着社会的发展，员工的职业健康越来越受到社会、企业和个人的关注。在当前的工业环境和商业环境中，空气净化系统已被广泛使用，用于保障职业卫生健康与安全，但目前还未发布有关工业用空气净化系统的性能测试方法。本研究基于对工业用空气净化系统净化指数的测试方法的研究，研发设计一种适用于该测试方法的试验舱，并通过流体仿真的方法验证该试验舱的设计合理性。通过仿真结果可知，试验物质在设计的试验舱中分布均匀，舱内流场合理，可有效保证试验物质在舱内的流动性，且因附壁、沉降等原因导致的自然衰减小。

Abstract: With the social development, more and more attention is paid to the workers’ occupational health. Air cleaning systems have been widely used in industrial and commercial field for occupational health and safety. But the test method for the performance of air cleaning systems has not yet been published. Based on the research of test method for the decontamination index of air cleaning systems, this paper is to develop a test chamber applicable for the test method, and verify the ra-tionality of the design of test chamber by computational fluid dynamics (CFD). From the simulation results, we can see that the test substance in the test chamber is uniformly distributed, and the air flow is suitable for the mobility of the test substance. The natural decay of test substance resulted from adhesion and sedimentation is low.