Nozzle geometry variations on the discharge coefficient

查看全文 作　　者：[1]M.M.A.Alam;[1]T.Setoguchi;[2]S.Matsuo;[3]H.D.Kim

机构地区：[1]Institute of Ocean Energy,Saga University(IOES),1,Honjo,Saga-shi,Saga 840-8502,Japan;[2]Department of Advanced Technology Fusion,Saga University,Japan;[3]Department of Mechanical Engineering,Andong National University,Korea

出　　处：《Propulsion and Power Research》索引2016年第5卷第1期,共12页

摘　　要：Numerical works have been conducted to investigate the effect of nozzle geometries on the discharge coefficient.Several contoured converging nozzles with finite radius of curvatures,conically converging nozzles and conical divergent orifices have been employed in this investigation.Each nozzle and orifice has a nominal exit diameter of 12.7x10^(-3)m.A 3rd order MUSCL finite volume method of ANSYS Fluent 13.0 was used to solve the Reynolds-averaged Navier-Stokes equations in simulating turbulent flows through various nozzle inlet geometries.The numerical model was validated through comparison between the numerical results and experimental data.The results obtained show that the nozzle geometry has pronounced effect on the sonic lines and discharge coefficients.The coefficient of discharge was found differ from unity due to the non-uniformity of flow parameters at the nozzle exit and the presence of boundary layer as well. 关键词：Boundary layer Compressible flow Reynolds-averaged Navier-Stokes(RANS) Shear layer Sonic lines Supersonic core

相关文献

参考文献（26）
引证文献（1）
耦合文献（0）

参考文献(26)

引证文献(1)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Nozzle geometry variations on the discharge coefficient

参考文献(26)

引证文献(1)

用户提示