Search for dissertations about: "bluff body flows"
Showing result 1 - 5 of 14 swedish dissertations containing the words bluff body flows.
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1. Under-body and Diffuser Flows of Passenger Vehicles
Abstract : Energy efficient vehicles will be required to meet future emission and fuel consumption requirements. Customers require reduced fuel consumption due to increasing fuel prices and the environmental issues, are drivers to reduce CO2. READ MORE
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2. Dynamics of Exhaust Valve Flows and Confined Bluff Body Vortex Shedding
Abstract : This thesis can be divided into two interconnected topics; engine exhaust-valve flows and confined bluff-body vortex shedding. When optimising engine flow systems it is common to use low order simulation tools that require empirical inputs, for instance with respect to flow losses across the exhaust valves. READ MORE
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3. Experimental design and vortex analyses in turbulent wake flows
Abstract : A new experimental setup for studies on wake flow instability and its control that successfully has been designed and manufactured, is introduced and de- scribed. The main body is a dual-sided flat plate with an elliptic leading edge and a blunt trailing edge. READ MORE
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4. Active Flow Control for Aircrafts and Heavy Vehicles
Abstract : Bluff-body flows are dominated by large dissipative vortex-shedding wakes with low mean pressure compared to the high pressure on their frontal area. This induced pressure difference is the major contribution to the total aerodynamic drag. READ MORE
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5. Active Flow Control for Drag Reduction of Heavy Vehicles
Abstract : This thesis considers the aerodynamics of trucks. The work focuses on the aerodynamic drag caused by the wake. Bluff-body flows are dominated by large dissipative vortex-shedding wakes with a low mean pressure compared to the high pressure on their frontal area. READ MORE