설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)
- 제2권1호
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- Pages.1-10
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- 1990
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- 1229-6422(pISSN)
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- 2465-7611(eISSN)
4각 덕트의 입구영역에서 천이 정상유동의 입구길이에 관한 연구
A Study on Entrance Length of Developing Transitional Steady Flows in a Square Duct
초록
In the present study, the entrance length, velocity profiles and waveforms of developing transitional steady flows in a square duct are investigated analytically and experimentally. The systems of conservation equations for transitional steady duct flows are solved analytically by linearizing non-linear convective terms and adoption of modified eddy viscosity from empirical correlations. Analytical solutions of velocity profiles for developing transitional steady flow were obtained in the form of infinite series. The experimental study for transitional steady flow in a square duct with
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