By applying computational fluid dynamics and acoustic finite element analysis technique, the flow resistance and noise characteristics of air cleaner are simulated and analyzed, in which the flow resistance and sound absorption characteristic of its filter element are also specifically studied. Finally an optimization aiming at re-dycing the noise of cleaner is performed with the flow resistance characteristic of optimized air cleaner reevaluated.%应用计算流体动力学和声学有限元方法分别对空气滤清器的流动阻力和噪声特性进行了仿真分析.其中还专门研究了滤芯的流阻特性和吸声特性.最后对空气滤清器进行了降噪优化,并重新评估了优化后的空气滤清器的流动阻力特性.
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