Essays about: "Navier-Stokes"

Showing result 1 - 5 of 124 essays containing the word Navier-Stokes.

  1. 1. Solving the incompressible Navier-Stokes equations in 3-D to model gas flow in a room

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Fredrik Malmström; [2024]
    Keywords : ;

    Abstract : The thesis proposes to model the flow of gases in a room by solving the incompressible Navier-Stokes equations in three dimensions. The transportationof scalars such as temperature and concentration of CO2 is modeled by solving the advection-diffusion equation, and the effects of temperature on thevelocity is accounted for by employing the Boussinesq approximation. READ MORE

  3. 2. Computational Fluid Dynamics and Modeling of a Free Surface Flow

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Mathieu Marmier; [2023]
    Keywords : CFD; Free Surface Flow; VOF; STAR-CCM ; Multiphase Simulation; Nuclear Engineering; Fluid Mechanics;

    Abstract : This project deals with the CFD modelling of a free surface flow. The aim is to develop and validate a fast and accurate numerical model for stratified two-phase flows. Volume of Fluid (VOF) multiphase model is employed. The purpose is to use the developed numerical model for the design of an element within a compact nuclear reactor. READ MORE

  4. 3. Simulation of Combustion in a Hybrid Rocket Engine

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Oscar Andersson; [2023]
    Keywords : Thesis; Hybrid Rocket Engine; CFD; computational fluid dynamics; combustion;

    Abstract : A numerical investigation on the combustion mechanics of a hybrid rocket engine is performed through unsteady Reynolds-averaged Navier-Stokes simulation. The hybrid rocket engine model is based on an experimental laboratory scale engine design operating on GOX and HDPE as a propellant. READ MORE

  5. 4. Boundary conditions in left ventricle for simulating mitral valve regurgitation

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Théo Cyril Arvid Monpouet Ekeram; Ellen Mattsson; [2023]
    Keywords : ;

    Abstract : Since various kinds of cardiovascular diseases are the leading cause of death today, it is of great importance to further our understanding of not only the diseases themselves, but also different treatments. One of the emerging tools is computational fluid dynamics. READ MORE

  6. 5. Active flow control of the turbulent boundary layer over a NACA4412 wing profile for skin friction drag reduction

    University essay from KTH/Teknisk mekanik

    Author : Giacomo Semprini Cesari; [2023]
    Keywords : Active flow control; drag reduction; numerical simulations; turbulent boundary layer; wings;

    Abstract : In the context of building a framework for active flow control of turbulent boundary layers in wings, a set of large-eddy simulation (LES) are implemented in OpenFOAM. The flow around a NACA4412 wing profile is simulated at 5° angle of attack and Re_c = 400˙000. READ MORE