بررسی اثر تغییر موقعیت خروجی بر اتلاف عبوری در صدا خفه‌کن‌ها

Noise pollution in devices has always been a pervasive challenge in the industry. Internal combustion engines are one of the devices that produce noise pollution in industries. Silencers are used to control the noise pollution produced by these engines. One of the most common types of silencers are expansion silencers. By changing the geometry and moving the position of the outlet pipe in expansion mufflers, the amount of passing loss can be increased. Side exit mufflers can be more effective than conventional expansion mufflers with similar dimensions. In this research, first, the transmission loss for the normal muffler and the side exit muffler is calculated through analytical solution and simulation with Comsol software, and then these results are compared and verified with an experimental work.
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