Essays about: "obukhov"
Showing result 1 - 5 of 10 essays containing the word obukhov.
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1. Verification and validation of the implementation of an Algebraic Reynolds-Stress Model for stratified boundary layers
University essay from KTH/Teknisk mekanikAbstract : This thesis studies the implementation of an Explicit Algebraic Reynolds-Stress Model(EARSM) for Atmospheric Boundary Layer (ABL) in an open source ComputationalFluid Dynamics (CFD) software, OpenFOAM, following the guidance provided by thewind company ENERCON that aims to make use of this novel model to improvesites’ wind-field predictions. After carefully implementing the model in OpenFOAM,the EARSM implementation is verified and validated by testing it with a stratifiedCouette flow case. READ MORE
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2. Evaporation Duct Modelling for a Wave-Propagation Simulator
University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)Abstract : Long-range communication proves to be a challenge due to the Earth’s curvature, since electromagnetic waves propagate away from the Earth’s surface in a free atmosphere. A possible solution to beyond line-of-sight communication is the atmospheric phenomenon known as the evaporation duct. READ MORE
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3. Verification of the local similarity theory above forests
University essay from Uppsala universitet/Luft-, vatten- och landskapsläraAbstract : In this study, the local similarity theory functions were calculated with two different approaches and on the other hand the mean hub height wind speed was compared with the rotor equivalent wind speed. Both calculations are based on two independent data-sets from measurement campaigns Hornamossen and Ryningsnäs which were conducted in the south of Sweden between May 2015 and June 2017, and November 2010 and February 2012. READ MORE
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4. The Inclusion of Stratification in Wind Analysis; A New Linearized Code
University essay from KTH/Strömningsmekanik och Teknisk AkustikAbstract : Wind energy is rapidly growing around the world as non-renewable energy sources are being phased out. To maximize the energy production, it is crucial to construct new wind turbines at locations where the average wind speed is high. An accurate wind assessment of a new potential site is thus essential in the development of new wind farms. READ MORE
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5. Predicting the Momentum Flux-Profile Relationship from Macro Weather Parameters
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : The study of climate heavily relies on simulations. For efficiency reasons, many important phenomena cannot be simulated, and have to be parametrized, i.e. their effect must be described based on macro parameters. READ MORE