Study on Correction Coefficients of Laminar and Turbulent Entrance Region Effect in Round Pipe

Wang Zhi-ging

Article Contents

Article Navigation > Applied Mathematics and Mechanics > 1982 > 3(3): 393-406

Wang Zhi-ging. Study on Correction Coefficients of Laminar and Turbulent Entrance Region Effect in Round Pipe[J]. Applied Mathematics and Mechanics, 1982, 3(3): 393-406.

Citation:

Wang Zhi-ging. Study on Correction Coefficients of Laminar and Turbulent Entrance Region Effect in Round Pipe[J]. Applied Mathematics and Mechanics, 1982, 3(3): 393-406.

Citation:

Wang Zhi-ging. Study on Correction Coefficients of Laminar and Turbulent Entrance Region Effect in Round Pipe[J]. Applied Mathematics and Mechanics, 1982, 3(3): 393-406.

PDF( 717 KB)

Study on Correction Coefficients of Laminar and Turbulent Entrance Region Effect in Round Pipe

Wang Zhi-ging

Harbin Institute of Technology, Harbin

Received Date: 1980-12-11
Publish Date: 1982-06-15

Abstract

Abstract

In this paper, a universal method for calculation of the inlet length and correction coefficient for the pressure losses and the flow in the case of laminar and turbulent flow in a smooth round pipe is put forward.With the aid of concrete examples, theoretical formulas are presented for calculation of the correction coefficient for pressure losses and flow in the case of laminar and turbulent flow. And a method for calculation of the flow is also presented here in consideration of the inlet effect of turbulent flow.By comparing the theoretical results with the experimental data, formulas presented in this paper are very simple and reliable.

FullText(HTML)

References(6)

References

[1]	王补宣,力学学报,1,(1963),38-52..
[2]	王补宣.高等学校自然科学学报,机械、动力版,5,(1965),482,.
[3]	Wang.J.S.and Tullis.J.P.,J.of Fluids Engrg.V.96. No.1,(1974).
[4]	Langhaar,J.Appl.Mech.V.9,No.22. (1942).
[5]	市川常雄(日),《液压技术基本理论》.p17,煤碳工业出版社.
[6]	王致清,哈尔滨工业大学学报,3,(1980),26