Essays about: "Advection-Diffusion"

Showing result 6 - 10 of 13 essays containing the word Advection-Diffusion.

  1. 6. Optimization of Heat Exhaust in the Edge of Tokamaks via Controlled Magnetic Stochastization

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Amit Kharwandikar; [2020]
    Keywords : Resonant Magnetic Perturbations; Tokamak; Divertor; Steady-state heat deposition; Power exhaust; Perturbation optimization; Resonant magnetiska störningar; Tokamak; avledare; statisk värmeavledning; värmeavledningen; störningsoptimering;

    Abstract : The protection of plasma facing components from heat and particle overloads is paramount to ensure the operability and desired lifetime of magnetic fusion devices. The possibility of using external 3D magnetic perturbations to improve the steady-state heat exhaust in diverted tokamaks has been studied in this thesis. READ MORE

  3. 7. Hydraulics of lamella sedimentation.A study of the lamella settlers at Ringsjö water treatment plant, Sweden.

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Maria Lytra; [2019]
    Keywords : Lamella settling tanks; Inclined sedimentation; Ringsjö water treatment plant; Suspended solids separation; Technology and Engineering;

    Abstract : This study investigates the lamella settlers in Ringsjö water treatment plant, Sweden, in terms of water movement and performance. The treatment plant has two blocks with differences in the flocculation and lamella settlers, where block 1 is not able to process the maximum designed flow rate without the addition of polymers. READ MORE

  4. 8. Adaptive Evolution of Resource Use, Phenotypic Diversity, and Productivity of Phytoplankton Communities

    University essay from Umeå universitet/Institutionen för fysik

    Author : Nils Hellekant; [2019]
    Keywords : Adaptive Dynamics; phenotype; phytoplankton; plankton; BEF; Biodiversity; diversity; Spatial modeling; Ecosystem function; Evolution; Diversity;

    Abstract : There is growing concern that the worldwide loss in biodiversity will harm the stability of the ecosystems, and thereby, the carrying capacity and critical ecosystem services the biosphere provides. Phytoplankton (microalgae) in lakes and oceans are arguably the most important primary producers. READ MORE

  5. 9. A stable and accurate hybrid FE-FD method

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Tuan Anh Dao; [2019]
    Keywords : ;

    Abstract : We develop a hybrid method to couple finite difference methods and finite element methods in a nonconforming multiblock fashion. The aim is to optimize computational efficiency when complex geometries present. READ MORE

  6. 10. On the Fourier Collocation Method

    University essay from Lunds universitet/Matematik LTH

    Author : Henrik Lindell; [2018]
    Keywords : Numerical Analysis; PDE; Partial Differential Equations; Numerical Linear Algebra; Mathematics; Fourier; Collocation; Numerical; Linear Algebra; Mathematics and Statistics;

    Abstract : This BSc thesis focuses on trying to find approximate solutions to partial differential equations using the Fourier collocation method. This method uses Fourier basis functions to approximate the solution to a partial differential equation with periodic boundary conditions. READ MORE