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Research on Energy Loss Eoefficient of Sudden Varying Tube by Simulation
Corresponding Author(s) : W.Z. Ai
Asian Journal of Chemistry,
Vol. 26 No. 11 (2014): Vol 26 Issue 11
Abstract
Sudden-enlargement tube and sudden-reduction tube have important applications in reality lives. Many researches have studied the characteristics of sudden-enlargement tube flows and sudden-reduction tube flows and many valuable results have also been obtained. But the valuable results only illuminate the relationships between energy loss coefficient and impacting factors, empirical expression about energy loss coefficient cannot be achieved. In this paper, empirical expression about energy loss coefficient was studied and was obtained by using simulation method. It could be concluded that the energy loss coefficient was mainly dominated by the contraction ratio. The less the contraction ratio is, the larger is the energy loss coefficient. When Reynolds number is more than 105, Reynolds number has little impacts on energy loss coefficient.
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- J.P. Zhou, Z.Y. Yang and G.F. Chen, J. Hydraul. Eng., 37, 12 (2006) (in Chinese).
- Z.Y. Li, X. Chen and M.F. Chen, J. Hydraul. Eng., 2, 1 (1997) (in Chinese).
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- J.H. Wu and W.Z. Al, J. Hydrodynamics Ser. B, 22, 360 (2010); doi:10.1016/S1001-6058(09)60065-2.
- D.C. Wang and P.J. Yue, J. Hydrodynamics Ser. A, 2, 3 (1987) (in Chinese).
- F.S. Xu and S.J. Liu, J. Hydraul. Eng., 11, 47 (1988) (in Chinese).
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References
J.P. Zhou, Z.Y. Yang and G.F. Chen, J. Hydraul. Eng., 37, 12 (2006) (in Chinese).
Z.Y. Li, X. Chen and M.F. Chen, J. Hydraul. Eng., 2, 1 (1997) (in Chinese).
S.O. Russell and J.W. Ball, J. Hydraul. Div., 93, 41 (1967).
J.H. Wu and W.Z. Al, J. Hydrodynamics Ser. B, 22, 360 (2010); doi:10.1016/S1001-6058(09)60065-2.
D.C. Wang and P.J. Yue, J. Hydrodynamics Ser. A, 2, 3 (1987) (in Chinese).
F.S. Xu and S.J. Liu, J. Hydraul. Eng., 11, 47 (1988) (in Chinese).
S.J. Liu, Y.Q. Yang, W.L. Xu and W. Wang, J. Hydraul. Eng., 7, 42 (2002) (in Chinese).
Z. Tian, W.L. Xu, W. Wang and S.J. Liu, J. Hydrodyn. Ser. B, 21, 799 (2009); doi:10.1016/S1001-6058(08)60215-2.
J.M. Zhang, W.L. Xu, S.J. Liu and W. Wang, J. Hydraul. Eng., 12, 27 (2004) (in Chinese).
J.X. Qu, Y.Q. Yang, J.M. Zhang, W.L. Xu, J. Sichuan Univ., 3, 30 (2001).
Q.F. Xia and H.G. Ni, J. Hydraul. Eng., 8, 37 (2003).