پديد آورنده :
ايزدي نيا، الهام
عنوان :
بررسي خصوصيات هيدروليكي سر ريز هاي جانبي تاج دايره اي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
آبياري و زهكشي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
نه، 110، [II] ص.: مصور، نمودار، جدول
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
منوچهر حيدرپور
استاد مشاور :
عبدالرضا كبيري ساماني
تاريخ نمايه سازي :
20/11/87
استاد داور :
جهانگير عابدي كوپائي، مرتضي صادقي
چكيده فارسي :
به فارسي و انگليسي: قابل رؤيت در نسخه ديجيتال
چكيده انگليسي :
111AbstractSide weirs are kinds of hydraulic structures which are used in sewerage and irrigationand drainage systems The flow over a side weir is a kind of spatially varied flow Sincethere is no analytical solution for dynamic equation of spatially varied flow theempirical study is the best way for investigating these structures Side weirs with asharp crest have been extensively studied in the past but information on thecharacteristics of other side weirs is limited In this study the hydraulic characteristics of circular crested side weir such as surfaceprofile velocity profile discharge coefficient and separation zone have beeninvestigated Nineteen hydraulic models divided in five groups were tested in a flumein the hydraulic laboratory of Isfahan University of Technology Investigation of thesurface profiles showed that the surface profiles in the vicinity of the side weir arenonuniform and this is due to separation zone close to the side weir Therefore thesuitable place for measuring of the characteristics of the flow is along to the centre lineof the channel Investigation of the velocity profile showed that with increasing distancefrom the side weir in longitudinal and transection direction the effect of secondary flowwas decreased and the velocity profiles became more uniform Dimensional andstatistical analysis indicated that discharge coefficient depend on upstream Froudenumber Fr1 the downstream slope of the circular crested side weir the ratio of theweir height to upstream flow depth P Y1 and ratio of weir length to upstream flowdepth L Y1 The result showed that the length of separation zone depends on upstreamFroude number the ratio of the weir height to upstream flow depth P Y1 ratio of weirlength to upstream flow depth L Y1 and Reynolds number
استاد راهنما :
منوچهر حيدرپور
استاد مشاور :
عبدالرضا كبيري ساماني
استاد داور :
جهانگير عابدي كوپائي، مرتضي صادقي
