The applicability of the Helmholtzresonator model in the study of the PER walls' pressure equalization was analyzed.
基于相关控制方程研究了等压雨幕墙风洞试验缩尺建模的相似准则。
2
The effect of installing the Helmholtzresonator in CA488 engine air intake manifold on engine performances is also analyzed in this paper.
并分析了在CA488进气管中装入亥姆赫兹谐振器对发动机性能的影响。
3
Based on the sound absorption mechanism of HelmholtzResonator, the advantage of soft tube length is fully used in the new structure, and thus the low-frequency noise can be controled easily.