Search for dissertations about: "Stagnation region"
Showing result 1 - 5 of 17 swedish dissertations containing the words Stagnation region.
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1. Numerical Simulation of Turbulent Flows for Turbine Blade Heat Transfer Applications
Abstract : Turbine blade heat transfer is an important engineering problem characterized by complex flow fields and high turbulence levels. This thesis is focused on using a full Navier-Stokes solver with two-equation eddy-viscosity models to predict external heat-transfer in single-stage, linear, two-dimensional uncooled turbine cascades. READ MORE
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2. Suicide in the Baltic countries and in the former republics of the USSR
Abstract : Background: Suicide was a prohibited topic in the former USSR. During Gorbachev's perestroika data on suicide mortality were released in 1989, for the first time in the history of the USSR. The USSR then consisted of 15 republics, forming culturally, geographically and historically disparate regions. READ MORE
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3. Analysis of the Performance of Different V2F Turbulence Models in a Stator Vane Passage Flow
Abstract : When designing the cooling system of modern gas turbines it is important to be able to predict the heat transfer from the hot gas to the walls surrounding the gas path. One flow feature making this rather complicated is the presence of secondary, three-dimensional flow structures, often referred to as horse shoe vortices, which greatly enhance the rate of heat transfer to the endwall, especially in the leading edge region. READ MORE
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4. Numerical investigation of the turbulent flow and heat transfer around a heated cube cooled by and impinging jet in a cross-flow
Abstract : Impinging jets are used for many industrial applications where high heat and mass transfer rates are required. The electronic industry is one of the fastest growing industries and applications of cooling technology in this field are of considerable importance. Forced channel flow is frequently used as a cooling technique. READ MORE
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5. Investigations of Flow Patterns in Ventilated Rooms Using Particle Image Velocimetry : Applications in a Scaled Room with Rapidly Varying Inflow and over a Wall-Mounted Radiator
Abstract : This thesis introduces and describes a new experimental setup for examining the effects of pulsating inflow to a ventilated enclosure. The study aimed to test the hypothesis that a pulsating inflow has potential to improve ventilation quality by reducing the stagnation zones through enhanced mixing. READ MORE