Search for dissertations about: "Direct Numerical Simulation DNS"
Showing result 1 - 5 of 37 swedish dissertations containing the words Direct Numerical Simulation DNS.
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1. Droplet growth in atmospheric turbulence : A direct numerical simulation study
Abstract : This Ph.D. thesis examines the challenging problem of how turbulence affects the growth of cloud droplets in warm clouds. Droplets grow by either condensation or collision. READ MORE
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2. Combustion characteristics of some alternative fuels in ICE: : a detailed numerical study
Abstract : Two major fuels commonly used in compression ignition (CI) and spark ignition (SI) enginesare diesel and gasoline. The reserve of diesel and gasoline is limited, however the combustion ofthese fuels giving rise to air pollution. READ MORE
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3. Direct numerical simulation of turbulent premixed flames at high Karlovitz numbers: structure and modelling
Abstract : There has been recent increased interest in premixed flames and in particular for use in gas turbines for power generation. This is a development that follows from increasing demands for high efficiency and low emissions of NOx, which can be achieved by using premixed flames and lean pre-heated mixtures, often close to the lean flammability limit. READ MORE
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4. Fundamental studies of non-premixed combustion in turbulent wall jets using direct numerical simulation
Abstract : The present thesis deals with the fundamental aspects of turbulent mixingand non-premixed combustion in wall-jet flows. Direct numerical simulations(DNS) of compressible turbulent flows are performed in a wall-jet configura-tion, which has a close resemblance to many industrial combustion applica-tions. READ MORE
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5. Transition delay in boundary-layer flows via reactive control
Abstract : Transition delay in boundary-layer flows is achieved via reactive control of flow instabilities, i.e. Tollmien-Schlichting (TS) waves. Adaptive and model-based control techniques are investigated by means of direct numerical simulations (DNS) and experiments. READ MORE