Essays about: "logarithmic wind profile"

Found 3 essays containing the words logarithmic wind profile.

  1. 1. Evaluation of a stochastic model of coherent turbulent structures for atmospheric particle deposition applications

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Andreas Eriksson; [2022]
    Keywords : atmospheric dispersion; particle deposition; k-epsilon; RANS; lagrangian particle model; stochastic particle model; OpenFOAM; SIMPLE algorithm; ABL; atmospheric boundary layer; neutral boundary layer; coherent turbulent structures;

    Abstract : In this thesis, we have evaluated a stochastic Lagrangian model for computing particle deposition rates with prospects to use for atmospheric deposition applications.  The model is one-dimensional and models the particle dynamics in the boundary layers near walls and obstacles by simulating the coherent turbulent structures and Brownian motion governing the wall-normal transport. READ MORE

  3. 2. Nocturnal jets in Skåne: an analysis of data from Hyltemossa research tower

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Author : Tove Fast; [2019]
    Keywords : Physics and Astronomy;

    Abstract : A nocturnal jet is a low level air jet that is often seen at an altitude below 500 m during night time conditions. It can reach wind speeds of storm force and is thus of importance for aviation and also for transport of e.g. moisture and pollutants in the lower troposphere. READ MORE

  4. 3. Variations in the energy budget above growing wheat and barley, Ilstorp 1998 : a gradient-profile approach

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Carin Kjellander; [1999]
    Keywords : geomorphology; physical geography; logarithmic wind profile; atmospheric boundaries; heat flow; climatological processes; pedology; cartography; climatology; naturgeografi; geomorfologi; marklära; kartografi; klimatologi; Earth and Environmental Sciences;

    Abstract : Fluxes of sensible heat and latent heat were calculated above fields of barley and wheat in Ilstorp, using a gradient profile approach. Gradient Richardson’s number was used as the stability parameter, and it was shown that atmospheric stability varies both with time of the day and wind speed. READ MORE