عنوان :
تجزيه و تحليل جريان زير بحراني و فوق بحراني براي مقاطع مختلف در لبه آبشار
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده عمران
صفحه شمار :
سيزده، 150، [II]ص.: مصور، جدول، شكل، نمودار
استاد راهنما :
محمد كريم بيرامي
استاد مشاور :
محمد رضا چمني
توصيفگر ها :
آبشار قائم , تنداب , سرريزپله كاني , فلوم ها , سرريزها , تقويت بوسنسيك , روش تئوري گرداب آزاد , كانال ها , معادله انرژي , دبي , جريان زيربحراني، بحراني، فوق بحراني , آزمايشگاه تحقيقاتي هيدروليك , دريچه كشويي
تاريخ نمايه سازي :
22/4/1384
استاد داور :
روح اله فتاحي، حميدرضا صفوي
تاريخ ورود اطلاعات :
1395/11/03
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
I ABSTRACT To measure flow discharge and study the erosion at the brink of free overfalls the computation of the end depth ratio EDR is required in civi engineering practices In this research based on the momentum and the energy equations four models to predict the EDR and the flow discharge in channels with different cross sections are presented In the first model the mean values of the flow discharge from the energy and the momentum equations are used to predict the EDR In the second mode using the energy equation the EDR is assumedto be the falling curvature of the free nappe at the brink of the free overfalls The third model is based on the assumption that the pressure i tri ution at the brink of channels of any cr oss section in the momentum equation is as t s m an unconfined rectangular channel wIth EDR 0 705 In the fourth mode usIng the energy equation in the free vortex theorem for the brink section the pressure coefficient for different cross sections is found and consequently the momentum equation is used If the flow upstream is supercritical the EDR is calculated in term of the upstreamFroude number or the relative channelslope The proposed models were examined with the experimental results of a rectangular channel in the Hydraulic Laboratory of the Civil Engineering Department of the Isfahan University of Techno ogy and with the available experimental and theoretical results of other investigators in rectangular triangular trapezoidal parabolic Ll shaped inverted semi circular circular and also circular with flat base channels It is shown that the predictions from these models especially those from the second model agree well with the experimentresults and theoretical predictions of other investigators d f 1 ltI U if i tI I Jt q
استاد راهنما :
محمد كريم بيرامي
استاد مشاور :
محمد رضا چمني
استاد داور :
روح اله فتاحي، حميدرضا صفوي
