Search for dissertations about: "RANS"
Showing result 6 - 10 of 118 swedish dissertations containing the word RANS.
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6. Numerical Investigation of Ship Responses in Calm Water and Regular Head Waves
Abstract : In order to design fuel efficient ships and install right machinery onboard, ship designers need to know the interaction effects between hull, propeller and appendages in realistic operating conditions. Neglecting the interaction effects may result in under/over-prediction of the required power. READ MORE
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7. CFD Modeling of Combustion in Flexi-Fuel Burners at Gas Turbine Conditions
Abstract : The main source of energy in the nearest future will come from fossil fuels. Increasing demands on environmentally friendly energy conversion implies that pollutants, such as CO and NOx, need to be reduced. READ MORE
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8. Mooring dynamics for wave energy applications
Abstract : This work aims to increase the modelling accuracy of two important problems for the wave energy industry. One concerns the mooring dynamics in the presence of snap loads (shock waves in cable tension). The other is related to nonlinear effects in the resonance region of moored wave energy converters (WECs). READ MORE
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9. Computational fluid dynamics for dispersion calculation in urban surroundings
Abstract : Increased knowledge on dispersion processes in urban environment will enhance the ability in the society to handle events where releases of toxic substances can occur. Also, the ability to increase preparedness at locations where such events potentially can emerge. READ MORE
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10. CFD Predictions Including Verification and Validation of Hydrodynamic Forces and Moments on a Ship in Restricted Waters
Abstract : The evaluation of ship manoeuvrability is of significance at the initial design stage, as inappropriate manoeuvring performance may result in unstable ship motion, difficulties in steering and even marine accidents. Restricted waters, with the presence of solid boundaries of the flow field, such as a shallow seabed below the hull or a side bank in the vicinity of the hull, complicate the flow field and introduce an influence on hydrodynamic forces and moments acting on the hull. READ MORE