Experiment and CFD analysis of reactive muffler

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Abstract

A conventional muffler used in vibratory rollers is usually designed based on experience and its performance could be enhanced in a large degree through structure optimization. In order to evaluate performance of reactive muffler and its effect on power loss of engine, flow field of muffler was discussed by CFD comparing with experimental test and the structure of reactive muffler was optimized. Based on results of simulation and optimization, the reactive muffler used in vibratory rollers with weight of 13t was fabricated and its field test was carriedon. The simulate results showed that velocity field coincided with the pressure field basically, which indicates that the optimized muffler -2# has excellent aerodynamic characteristics and rational design of damping units. The results of field tests showed that 2# muffler had better acoustic insertion loss with little pressure loss. Acoustic insertion loss was 17~18.4 dB (A) at engine speed of 2450 rpm, which meets the designing goal. © Maxwell Scientific Organization, 2013.

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APA

Yao, Y., Wei, S., Zhao, J., Chen, S., Feng, Z., & Yue, J. (2013). Experiment and CFD analysis of reactive muffler. Research Journal of Applied Sciences, Engineering and Technology, 6(17), 3282–3288. https://doi.org/10.19026/rjaset.6.3636

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