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Progress in physical modeling of compressible wall-bounded turbulent flows
Understanding, modeling and control of the high-speed wall-bounded transition and turbulence not only receive wide academic interests but also are...
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Analysis of Space-Time Correlations to Support the Development of Wall-Modeled LES
Wall models reduce the computational cost of large eddy simulations (LES) by modeling the near-wall energetic scales and enable the application of...
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LES Modeling of the DLR Generic Single-Cup Spray Combustor: Validation and the Impact of Combustion Chemistry
Turbulent spray combustion in a generic kerosene-fueled single-cup combustor at typical idle and cruise conditions of an aeroengine are studied with...
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Wall-Modeled LES
This chapter describes the approaches to wall-modeled LES proposed by three TILDA Partners. DLR adopts a classic treatment of the near wall region...
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Numerical modeling of current-induced scour around multi-wall foundation using large-eddy simulation
Scouring is one of the primary triggers of failure for bridges across rivers or seas. However, research concerning the scour mechanism of multi-wall...
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Numerical simulation of bluff body turbulent flows using hybrid RANS/LES turbulence models
Many engineering applications involve turbulent flows around bluff bodies. Because of their intrinsically unsteady dynamics, bluff body...
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Calibrating sub-grid scale models for high-order wall-modeled large eddy simulation
High-order methods have demonstrated orders of magnitude reduction in computational cost for large eddy simulation (LES) over low-order methods in...
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The relevance of wall roughness modeling for simulation of powder flows in laser metal deposition nozzles
Point-particle large-eddy simulations and high-speed imaging are used to investigate effects of wall roughness and particle size on characteristics...
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RANS and LES Computations of Natural Convection in a Square Cavity
Turbulent natural convection (Ra = 1.58·10 9 ) in a confined 3D square cavity with two differentially heated side walls are simulated numerically using...
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An Eulerian–Eulerian–Lagrangian modeling of two-phase combustion
AbstractIn simulating two-phase combustion, most Reynolds-averaged Navier–Stokes (RANS) simulation and large-eddy simulation (LES) used...
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Stochastic Modeling and Large-Eddy Simulation of Heated Concentric Coaxial Pipes
Turbulent concentric coaxial pipe flows are numerically investigated as canonical problem addressing spanwise curvature effects on heat and momentum...
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Analysis of a Transonic Cascade with Wall-Modeled LES Based on DGSEM
High-Reynolds number flows, which typically occur in turbomachinery applications, require sufficiently well-resolved boundary layer discretizations...
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Parallelized Computation of Fluid Flow Around a Wall-Mounted Cube Using ILES Approach
Large-eddy simulation (LES) without subgrid-scale modeling of unresolved turbulent structures, a kind of so-called implicit LES (ILES), is tested for...
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sDevelopment of a Two-way Coupled Hybrid RANS-LES Scheme for Numerical Simulation of Turbulent Fluid Flows
Large-eddy simulation (LES) and Reynolds Averaged Navier Stokes (RANS) are both widely used for numerically simulating wall-bounded turbulent flows...
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Validation and analysis of turbulence modeling in pipe elbow under secondary flow conditions
The present work proposes to analyze the performance of five eddy-viscosity turbulence models in predicting an internal single-phase incompressible...
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Evolution of vortex structure around a wall-mounted rough hemisphere
In this paper, the large eddy simulation (LES) method is used to calculate Reynolds numbers the range in the range of 3 000–30 000 (based on the...
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Wall-modeled large-eddy simulation of noise generated by turbulence around an appended axisymmetric body of revolution
The directivity of the noise generated by turbulent flows around an underwater vehicle (the fully appended SUBOFF body) is investigated numerically,...
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Euler-Lagrange LES Predictions of a Powder Disperser Including a Multiscale Wall-Impact Breakage Model
The evolution of the particle size in turbulent particle-laden flows is a complex phenomenon, which plays an important role in various environmental...
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Assessment of subgrid-scale models in wall-modeled large-eddy simulations of turbulent channel flows
Considering the demanding of grid requirements for high-Reynolds-number wall-bounded flow, the wall-modeled large-eddy simulation (WMLES) is an...
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Investigating 3-D Effects on Flashing Cryogenic Jets with Highly Resolved LES
For the development of upper stage rocket engines with laser ignition, the transition of oxidizer and fuel from the pure cryogenic liquid streams to...
