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Journal of Computational and Applied Research in Mechanical Engineering - JCARME، جلد ۸، شماره ۲، صفحات ۱۸۷-۱۹۶
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عنوان انگلیسی Turbulence Analysis of Shock Waves in Contractions with Rectangular Sections
چکیده انگلیسی مقاله Formation of shock waves has an important role in supercritical flows studies. These waves are often occurring during passage of supercritical flow in the non-prismatic channels. In the present study, the effect of length of contraction wall of open-channel for two different geometries (1.5 m and 0.5 m) and fixed contraction ratio was investigated on hydraulic parameters of shock waves using experimental model (models 1 and 2). For achieving to this goal, values of height and instantaneous velocity were measured in various points of shock waves observed in contractions for four Froude Numbers. In general, non-uniform distribution of velocity and turbulence intensity profiles were completely clear. Comparing results of models 1 and 2, show that the height and velocity values of formed waves in the model 2 is so much more than the model 1. Also, motion of the shock waves was accompanied with longitude gradient decrease of turbulence kinetic energy. The results of the present research can be very useful for designer engineers.
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نویسندگان مقاله Mohammad Reza Nikpour |
Department of Water Engineering, University of Mohaghegh Ardabili, Ardabil, Ardabil, 9132220485, Iran

payam khosravinia |
Department of Water Sciences and Engineering, University of Kurdistan, Sanandaj, Kurdistan, 9120977875, Iran

Davod Farsadizadeh |
Department of Water Engineering, University of Tabriz, Tabriz, East Azerbaijan , 9143135801, Iran

نشانی اینترنتی http://jcarme.sru.ac.ir/article_823_b7b90052ed93b4d6c3c78df61c3865d9.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/484/article-484-1243541.pdf
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