标题：Research on Relation among Inlet/outlet Pressure, Pressure Loss and Inlet Velocity of a Complex Resistance Muffler
作者：Fang Jian-hua; Ji Qiang; Zhou Yi-qi; Zhu De-li
通讯作者：Fang, J H
作者机构：[Fang Jian-hua; Ji Qiang; Zhu De-li] Chinese PLA 72465, Jinan, Peoples R China.; [Zhou Yi-qi] Shandong Univ, Sch Mech Engn, Jinan, Peoples R China.
会议名称：2nd International Conference on Applied Mechanics and Materials (ICAMM 2013)
会议日期：NOV 23-24, 2013
来源：APPLIED MECHANICS AND MATERIALS II, PTS 1 AND 2
关键词：Complicated structure; Muffler; CFD; Pressure loss; Empirical formula
摘要：Simulation models of resistance mufflers with different typical structures were established, through the computational fluid dynamics method, under the conditions of different inlet velocities, by analyzing distribution characteristic of velocity field and pressure field for flows internal the mufflers, a kind of mathematical relation among the inlet velocity, inlet/outlet pressure, and pressure loss was discovered. Through CFD simulation computation and practical measuring tests of above three parameters for practical muffler with complex configurations, the mathematical relation of them was proved to be correct. With the conclusion, while inlet velocity changed, the variable conditions of inlet/outlet pressure and pressure loss for resistance mufflers could be estimated approximately Therefore, the test expense could be saved, and the designing efficiency for mufflers could also be further improved, so it would bring a certain economic benefit, which would be of great significance for energy saving research of mufflers.