Journal ArticleDOI
A digital filter based generation of inflow data for spatially developing direct numerical or large eddy simulations
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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
Reconstruction of proper numerical inlet boundary conditions for draft tube flow simulations using machine learning
Pedro Véras,Olivier Métais,Guillaume Balarac,Didier Georges,Antoine Bombenger,Claire Segoufin +5 more
TL;DR: In this paper , the authors used machine learning to determine appropriate mean and fluctuating inlet boundary conditions for the numerical flow simulations of a hydraulic turbine draft tube, which significantly improves the mean velocity profiles and static pressure evolution inside the draft tube.
Dissertation
Numerical modeling of complex heat transfer phenomena in cooling applications
TL;DR: In this article, a two-fluid and homogeneous mixture model for multiphase and multicomponent flows is used to solve the evaporation problem in cooling applications.
Journal ArticleDOI
Modelling the response of a turbulent jet flame to acoustic forcing in a linearized framework using an active flame approach
Thomas Kaiser,G. Varillon,Wolfgang Polifke,Feichi Zhang,Thorsten Zirwes,Henning Bockhorn,Kilian Oberleithner +6 more
TL;DR: In this article , a linear mean field analysis of a turbulent reacting methane-air jet flame was performed by taking the heat release oscillations of the flame resulting from the acoustic fluctuations into account, with the goal of predicting the response of the reacting flow to upstream acoustic actuation.
Book ChapterDOI
Direct Numerical Simulation on the Influence of the Nozzle Design for Water Sheets Emerged at Moderate Reynolds Numbers
Wolfgang Sander,Bernhard Weigand +1 more
TL;DR: In this paper, the influence of the mean axial velocity profile resulting from the variation of the nozzle design was analyzed and it was found that the kinetic energy per unit mass was one of the major influencing factors.
Proceedings ArticleDOI
Numerical study of STBLI on flexible panels with wall-modeled LES
Jonathan Hoy,Ivan Bermejo-Moreno +1 more
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).
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.