Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"subgrid scale modeling"”.
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Subgrid Scale Modeling for Large Eddy Simulation of Buoyant Turbulent Flows
… buoyant turbulent flows, requires accurate modeling of the subgrid sclae (SGS) momentum and buoyancy fluxes. This thesis presents a series of LES and direct numerical simulation (DNS) studies towards a priori and a posteriori evaluation of existing SGS models, and development of new SGS …
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Entropy behavior for underresolved discontinuous Galerkin discretizations of the Navier-Stokes equations
… Navier Stokes perform some compensation for subgrid scale effects, like subgrid-scale modeling in explict LES. In this work, the mathematical formulation of the finite element method is used to create a new technique for quantifying the artificial generation of entropy due to stabilization in …
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A Filtered-Wall Formulation for Large -Eddy Simulation of Wall -Bounded Turbulence
… for turbulent flows where only the largest scales of turbulence are simulated, while the effects of the small scales are modeled. However, the application of LES in engineering flows is limited largely by difficulties in LES modeling near walls; this is commonly known as the LES …
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A New Two-Scale Decomposition Approach for Large-Eddy Simulation of Turbulent Flows
… on the explicit reconstruction of the small-scale velocity by solving the small-scale governing equations on the domain with reduced dimension representing a collection of one-dimensional lines embedded in the three-dimensional flow domain. A coupled system of equations, that is not based on …