Search Results - Eddy, Orin~
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Large eddy simulation of high speed convergent-divergent nozzle flows
Published 2013“…Reynolds averaged Navier Stokes (RANS) CFD tends to overpredict while Large Eddy Simulation (LES) CFD underpredicts potential core length. …”
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Large eddy simulation and PIV measurements of unsteady premixed flames accelerated by obstacles
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Comparison of finite-volume and spectral/hp methods for large-eddy simulation of combustor port flow
Published 2022“…A crucial requirement is a high-order solver that supports hybrid unstructured grids. In this context, accuracy and cost of a high-order spectral/hphp Nektar++ solver and a standard second-order finite-volume OpenFoam solver are systematically compared for performing LES (with subgrid scale treatments) on two configurations. …”
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Large-eddy simulation of twin impinging jets in cross-flow
Published 2007“…The flow-field beneath a jet-borne vertical landing aircraft is highly complex and unsteady. large-eddy simulation is a suitable tool to predict both the mean flow and unsteady fluctuations. …”
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Large eddy simulation of a complete harrier aircraft in ground effect
Published 2009“…The flowfield beneath such a jet-borne vertical landing aircraft is inherently unsteady. …”
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Large eddy simulation of liquid-jet primary breakup in air crossflow
Published 2013“…A robust two-phase-flow large-eddy-simulation methodology is applied to simulate the primary breakup of an axisymmetric liquid jet injected into an air crossflow at atmospheric pressure. …”
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Explicit and implicit large eddy simulations of variable-density low-speed flows
Published 2023“…The application of the Non-oscillatory Forward-in-Time (NFT) class of solvers to facilitate conventional explicit Large Eddy Simulations (LES) and implicit LES (ILES) of low-speed turbulent flow encompassing substantial local density variations is explored. …”
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Turbulent closure analysis in heated separated and reattached flow using eddy-resolving data
Published 2020“…In this study, we use Large-Eddy Simulations (LESs) to provide a platform to investigate the separated and reattached turbulent flow over a heated blunt plate at ReH = 21 600. …”
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Large eddy simulation of the velocity-intermittency structure for flow over a field of symmetric dunes
Published 2016“…Despite the difference in boundary conditions, our results agree very well with previous experiments that show the importance, in the region above the dunes, of a quadrant 3 (u 1 ′ < 0, α 1 ′ > 0) dominant near the wall and quadrant 2 dominant close to the lower part of the separated shear layer. …”
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Numerical study of thermal plume characteristics and entertainment in an enclosure with a point heat source
Published 2009“…Visualization of the computed flow showed that the stretching mechanism of the large-scale structures, which governs the expansion-contraction behaviour of the plume, occurs in such a way that the coherent structure dominating the flow below the interface height takes a spiral shape.…”
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A grid-transparent numerical method for compressible viscous flows on mixed unstructured grids
Published 1999“…The main contributions of the present work are the careful development of a solution method for compressible viscous flows on mixed unstructured grids and the comparison of the impact of triangular, quadrilateral, and mixed grids on convergence rates and solution quality.…”
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Numerical simulation of streamwise vorticity enhanced mixing
Published 2001“…Therefore, as a final step, a realistic scarfed mixer was modelled in an attempt to model the temperature mixing. The main contribution of the present work is the assessment of a grid-based Reynolds-averaged solution procedure for the prediction of lobed mixer flows. …”
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Advanced CFD methods for turbulent flows
Published 2023“…MPDATA due to its self-regularisation property can be employed to enable implicit large eddy simulation (ILES). In contrast to conventional large eddy simulation (LES), the subgrid-scale (SGS) effects in ILES are implicitly provided through the numerical dissipation rather than explicitly modelled with an SGS model, allowing for a simpler numerical implementation and a cost-effective computation. …”
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High-fidelity numerical investigation of liquid metal magnetoconvection
Published 2024“…By solving the MHD equations, which combine the Navier-Stokes and Maxwell equations, using Large Eddy Simulation (LES) paradigm, this research provides detailed insights into the fluid dynamics of liquid metals.The simulations are conducted using a customised module of the opensource software OpenFOAM, specifically developed for this project. …”
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