消声器
汽车工业
噪音(视频)
汽车工程
散热器(发动机冷却)
声学
声压
计算流体力学
噪声控制
内燃机
废气再循环
汽车发动机
工程类
机械工程
降噪
计算机科学
航空航天工程
物理
人工智能
图像(数学)
作者
G. Mylsami,N. Nedunchezhian
标识
DOI:10.15866/ireme.v7i1.3694
摘要
Automotive exhaust systems give a major contribution to the sound quality of a vehicle. The principal sources of noise in automotive engines are intake noise, radiator noise, combustion noise, exhaust noise etc. Out of these exhaust noise is predominant and it is to be controlled. Computational Fluid Dynamics is the current trend on automotive field in reducing the cost effect for the analysis of various models. The suitable design and development of exhaust muffler will help to reduce the noise level, at the same time performance of the engine should not be affected. Mechanical performance of the perforated muffler can be controlled by the porosity and distribution of holes. Three different types of new reactive perforated tube mufflers have been modelled and pressure and velocity boundary input has been given and outputs are taken this output are compared with experimental measurements the reactive perforated tube muffler1 considerably reduce the exhaust noise of internal combustions engine.
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