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 9 of 9 for “"large Reynolds number."”.
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Variational multi-scale modeling for particle-laden gravity currents over flat and triangular wavy terrains
… for simulating dilute particle-laden currents at large Reynolds number Re = 10000. The physical model is based on the coupling balance of fluid momentum and convection and diffusion. We derive the RBVMS formulation for the weak form of governing equations, design the fine scale parameters and make …
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Vorticity structure and evolution in a transverse jet with new algorithms for scalable particle simulation
… simulation of a high-momentum transverse jet at large Reynolds number, featuring a discrete filament representation of the vorticity field with local mesh refinement to capture stretching and folding and hair-pin removal to regularize the formation of small scales. A novel formulation of the …
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An experimental investigation of diffuse optical scattering from stationary and flowing dispersions
… by shear flow is studied at small and large Reynolds number. For the spherical latex dispersions various fibre configurations are investigated, the results being compared with multiple scattering predictions of the inverse scattering length S. All configurations give values of S which …
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Laboratory Experiments of High-Energy-Density Shocks in Magnetized Supersonic Plasma Flows
… astrophysical environments, in which high Mach number flows interact with ambient media, planetary obstacles, and/or spacecraft to generate strongly radiating shocks. Some examples include extrastellar jets from radio galaxies, relativistic jets from quasars and blazars, Herbig-Haro jets from …
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PRESSURE DRIVEN WALL JET FLOW NEAR CHANNEL EXIT AT MODERATE REYNOLDS NUMBER
… by a pressure gradient near channel exit at Reynolds Number ranging from the order of 10 to 100, emerging from a two-dimensional channel is examined theoretically in this study. Poiseuille flow conditions are assumed to prevail far upstream from the exit. The problem is solved using the …
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An experimental test for the existence of the Euler wake velocity, validating Eulerlet theory by using a bluff body in a low-speed wind tunnel
… problems in aerodynamics mainly works for Reynolds average Navier-Stokes equations particularly for a uniform, steady flow past a fixed body. Further, consider large Reynolds number such that the flow is not turbulent, and the boundary layer is negligibly small and the impermeability …
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Multiple equilibria and low-frequency variability of wind-driven ocean models
… of parameters investigated, in the limit of large Reynolds number, δI,δS → ∞, the inertial branch is stable and appears to be unique. This branch is anti-symmetric with respect to the mid-basin latitude like the prescribed wind-stress curl. For intermediate values of δI,δS, additional pairs …
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Structure of turbulence in the marine atmospheric surface layer
… for a major contribution to the turbulent Reynolds stress and the production of turbulent kinetic energy. Bursting is the term used for a sequence of events, where a low-speed streak of fluid from the near wall region lifts away from the wall, slowly at first, and then rapidly moves away …
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Instability and Energy Growth in Stratified Shear Flows
… for over a century, going back to at least Reynolds (1883). A key question in understanding the breakdown is how sufficient energy growth is achieved, with both linear modal instability and transient growth as possible candidates. The introduction of stratification can affect the strength of …