Journal ArticleDOI
A digital filter based generation of inflow data for spatially developing direct numerical or large eddy simulations
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TLDR
In this article, the authors present a new approach for generating artificial velocity data which reproduces first and second order one point statistics as well as a locally given autocorrelation function.About:
This article is published in Journal of Computational Physics.The article was published on 2003-04-10. It has received 1058 citations till now. The article focuses on the topics: Reynolds stress equation model & Inflow.read more
Citations
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Journal ArticleDOI
Effect of turbulent inflow boundary condition in les of flow over a backward-facing step using spectral element method
TL;DR: In this paper, a stochastic model for generating inflow turbulence is implemented and compared to the method of generating Inflow turbulence with random fluctuations, which leads to laminarization of the flow in the inlet channel.
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Extended Synthetic Turbulence Inflow Generator within a Hybrid LES-URANS Methodology for the Prediction of Non-Equilibrium Wall-Bounded Flows
Stephan Schmidt,Michael Breuer +1 more
TL;DR: In this article, the authors combine a proper synthetic turbulence inflow generator with an unified hybrid LES-URANS method, which relies on an explicit algebraic Reynolds stress model within the unsteady Reynolds-averaged Navier-Stoks (URANS) mode.
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Analysis of Unsteady Motion with Respect to Noise Sources in a Gas Turbine Combustor: Isothermal Flow Case
F. Flemming,C. Olbricht,B. Wegner,Amsini Sadiki,Johannes Janicka,Friedrich Bake,Ulf Michel,B. Lehmann,Ingo Röhle +8 more
TL;DR: In this article, a combustion chamber consisting of a swirl burner and an exit nozzle of Laval-shape, representing a gas turbine combustor, is investigated by means of experiments and large eddy simulation.
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Future Challenges in the Modelling and Simulations of High-pressure Flows
TL;DR: The study of high-pressure turbulent combustion is a relatively new field in the realm of combustion studies and the coupling between the conservation equations and the equation of state is examined in this paper.
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Numerical Investigation of Flow through a Valve during Charge Intake in a DISI -Engine Using Large Eddy Simulation
TL;DR: In this paper, a large eddy simulation (LES) is applied to study the turbulent fluid flow around the intake valve of a single cylinder IC-engine as represented by the so-called magnetic resonance velocimetry (MRV) flow bench configuration with a relatively large Reynolds number of 45,000.
References
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Book
The theory of homogeneous turbulence
TL;DR: In this article, the kinematics of the field of homogeneous turbulence and the universal equilibrium theory of decay of the energy-containing eddies are discussed. But the authors focus on the dynamics of decay and not on the probability distribution of u(x).
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Direct numerical simulation of free-surface and interfacial flow
TL;DR: In this paper, the authors consider the formation of droplet clouds or sprays that subsequently burn in combustion chambers, which is caused by interfacial instabilities, such as the Kelvin-Helmholtz instability.
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Direct simulation of a turbulent boundary layer up to R sub theta = 1410
TL;DR: In this paper, the turbulent boundary layer on a flat plate, with zero pressure gradient, is simulated numerically at four stations between R sub theta = 225 and R sub tta = 1410.
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DIRECT NUMERICAL SIMULATION: A Tool in Turbulence Research
Parviz Moin,Krishnan Mahesh +1 more
TL;DR: In this article, direct numerical simulation (DNS) of turbulent flows has been reviewed and the complementary nature of experiments and computations in turbulence research has been illustrated, as well as how DNS has impacted turbulence modeling and provided further insight into the structure of turbulent boundary layers.