Journal of the korean Society of Automotive Engineers (오토저널)
- Volume 15 Issue 2
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- Pages.92-104
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- 1993
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- 1739-4791(pISSN)
A study on velocity profiles and inlet length of developing transitional pulsating flows in the entrance region of a square duct
정4각 덕트 입구영역에서 천이파동유동의 속도분포와 입구길이에 관한 연구
Abstract
In the present study, the velocity profiles and entrance length of developing transitional pulsating flows are investigated both analytically and experimentally in the entrance region of a square duct. The systems of conservation equations for transitional pulsating flows in a square duct are solved analytically by linearizing the non-linear convective terms. Analytical solutions are obtained in the form of infinite series for velocity pofiles. The experimental study for the air flow in a square duct(40mm*40mm*4000mm) is carried out to measure velocity profiles and other parameters by using a hot-wire anemometer with a data acquisition and processing system. The distribution of velocity profiles(
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