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Tides --- Water currents.
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Tides --- Water currents.
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The articles focus on new developments in the field of large-eddy simulation of complex flows and are related to the topics: modelling and analysis of subgrid scales, numerical issues in LES cartesian grids for complex geometries, curvilinear and non-structured grids for complex geometries. DES and RANS-LES coupling, aircraft wake vortices, combustion and magnetohydrodynamics. Progress has been made not only in understanding and modelling the dynamics of unresolved scales, but also in designing means that prevent the contamination of LES predictions by discretization errors. Progress is reported as well on the use of cartesian and curvilinear coordinates to compute flow in and around complex geometries and in the field of LES with unstructured grids. A chapter is dedicated to the detached-eddy simulation technique and its recent achievements and to the promising technique of coupling RANS and LES solutions in order to push the resolution-based Reynolds number limit of wall-resolving LES to higher values. Complexity due to physical mechanisms links the last two chapters. It is shown that LES constitutes the tool to analyse the physics of aircraft wake vortices during landing and takeoff. Its thorough understanding is a prerequisite for reliable predictions of the distance between consecutive landing airplanes. Subgrid combustion modelling for LES of single and two-phase reacting flows is demonstrated to have the potential to deal with finite-rate kinetics in high Reynolds number flows of full-scale gas turbine engines. Fluctuating magnetic fields are more reliably predicted by LES when tensor-diffusivity rather than gradient-diffusion models are used. An encouraging result in the context of turbulence control by magnetic fields.
Engineering. --- Computer simulation. --- Continuum physics. --- Fluid mechanics. --- Engineering Fluid Dynamics. --- Simulation and Modeling. --- Classical Continuum Physics. --- Classical and Continuum Physics. --- Classical field theory --- Continuum physics --- Physics --- Continuum mechanics --- Computer modeling --- Computer models --- Modeling, Computer --- Models, Computer --- Simulation, Computer --- Electromechanical analogies --- Mathematical models --- Simulation methods --- Model-integrated computing --- Hydromechanics --- Turbulence --- Eddies --- Fluid dynamics --- Mathematical models. --- Water currents --- Whirlpools
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The book is the only one of its kind devoted entirely to the subject of Large Eddy Simulation. It presents a comprehensive account and a unified view of this young but very rich discipline. LES is the only efficient technique for approaching high Reynolds numbers when simulating industrial, natural or experimental configurations. The author concentrates on incompressible fluids. The topics are well chosen and both the mathematical ideas and the applicatons are presented with care. The book addresses researchers as well as graduate students and engineers. This second edition is a greatly enriched version motivated both by the increasing theoretical interest on LES and the increasing numbers of applications. Two entirely new chapters are devoted to the coupling of LES with multiresolution multidomain techniques and to the new hybrid approaches that relate the LES procedures to the classical statistical methods based on the Reynolds Averaged Navier Stokes equations.
Eddies --- Turbulence --- Fluid dynamics --- Water currents --- Whirlpools --- Mathematical models --- Mathematical models. --- Physics. --- Fluids. --- Computer mathematics. --- Computational intelligence. --- Observations, Astronomical. --- Astronomy—Observations. --- Mathematical Methods in Physics. --- Numerical and Computational Physics, Simulation. --- Fluid- and Aerodynamics. --- Computational Mathematics and Numerical Analysis. --- Computational Intelligence. --- Astronomy, Observations and Techniques. --- Hydraulics --- Mechanics --- Physics --- Hydrostatics --- Permeability --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Astronomical observations --- Observations, Astronomical --- Intelligence, Computational --- Artificial intelligence --- Soft computing --- Computer mathematics --- Electronic data processing --- Mathematics
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