• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2009년도 하계학술발표대회 논문집
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• pp.1435-1439
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• 2009

Drainage noise with making think about what they do disturbs neighborhoods live under source of noise. elbow pipe built in the house. the general elbow pipe has a rectangular elbow because of easiness when the plan set up or executing. therefore, free falling fluid impacts on the wall of the elbow pipe almost at one point. in this paper, to disperse the potential energy, the shock decentralizes from tiny area to large area. And It is considered how the characteristics change according to the noise of transformed shape of pipe, then researched the effectiveness of transformed pipe configuration.