Results 211 to 220 of about 2,982 (260)

Large Eddy Simulation (LES) of turbulent flows in gas turbine

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Large-eddy simulation (LES) of the large scale bubble plume

Chemical Engineering Science, 2009
Abstract A large-eddy simulation of gas–liquid flow in a large scale bubble plume is presented. The Euler-Euler approach is used to describe the equations of motion of the two phase flow. The sub-grid scale modeling is based on the Smagorinsky kernel. All the non-drag forces (turbulent dispersion force (only for RANS), virtual mass force, lift force)
Mahesh T Dhotre, Bojan Niceno, Brian L Smith   +2 more
exaly   +2 more sources

Large-Eddy Simulation (LES) of Large Hydrocyclones

Particulate Science and Technology, 2007
Fluid dynamics theory applied to the hydrocyclone flow field has progressed in past experimental and theoretical investigations from a two-dimensional Prandtl mixing-length turbulence modeling to the current level of three-dimensional large-eddy simulation (LES) and differential-stress approaches.
Jose A. Delgadillo, Raj K. Rajamani
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Large eddy simulation (LES) for synthetic jet thermal management

International Journal of Heat and Mass Transfer, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mark G Allen
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An Attempt of Large Eddy Simulation (LES) for Combustor Modeling

2021
An attempt of large eddy simulation (LES) in a model combustor is performed, and a number of critical issues, such as grid size, incoming flow, wall boundary, physical sub-model and result sampling, are discussed. The computed results are compared with comprehensive experimental measurements, and illustrate that the mean axial velocity and temperature ...
Jiang, Lei-Yong, Campbell, Ian
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Improved Engine Wall Models for Large Eddy Simulation (LES)

SAE Technical Paper Series, 2013
<div class="section abstract"><div class="htmlview paragraph">Improved wall models for LES are presented in this paper. The classical Werner-Wengle (WW) wall shear stress model was used along with the eddy viscosity near walls. A sub-grid scale turbulent kinetic energy was employed in a model for the eddy viscosity.
Chalearmpol Plengsaard, Christopher Rutland   +1 more
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Chemical Tomography in a Fresh Wildland Fire Plume: A Large Eddy Simulation (LES) Study

Journal of Geophysical Research: Atmospheres, 2021
Abstract Wildland fires involve complicated processes that are challenging to represent in chemical transport models. Recent airborne measurements reveal remarkable chemical tomography in fresh wildland fire plumes, which remain yet to be fully explored using models.
Siyuan Wang, Matthew Mitchell Coggon, Georgios I. Gkatzelis, Carsten Warneke, Ilann Bourgeois, Thomas B. Ryerson, Jeff Peischl, Patrick R Veres, J. Andrew Neuman, Johnathan Hair, Taylor Shingler, Marta A Fenn, Glenn S. Diskin, L. Gregory Huey, Young Ro Lee, Eric C Apel, Rebecca S. Hornbrook, Alan J. Hills, Samuel R Hall, Kirk Ullmann, Megan Marie Bela, Michael K. Trainer, Rajesh Kumar, John Orlando, Frank Flocke, Louisa K. Emmons   +25 more
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Large-Eddy Simulation (LES) of settling particle cloud dynamics

International Journal of Multiphase Flow, 2014
A series of Euler–Lagrangian four-way coupling Large-Eddy Simulations (LES) are performed to study the dynamics of settling particle clouds. The numerical method is first validated by comparing with existing experimental results. Then, a parametric study is performed with various initial release shapes, particle sizes, and cloud buoyancies.
Wang, Ruo-Qian, Law, Adrian Wing-Keung, Adams, E. Eric   +2 more
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Large-Eddy-Simulation (LES) Analysis

2016
Computational Fluid Dynamics, usually abbreviated as CFD, has become a “third” approach in addition to the classic analytical treatment and the experimental investigation of flow and heat transfer phenomena. CFD is a branch of fluid mechanics that uses numerical methods and mathematical algorithms to solve and analyze problems that involve flow ...
Stefan aus der Wiesche, Christian Helcig
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Evaluation and Validation of Large-Eddy-Simulation (LES) for Gas Jet and Sprays

SAE Technical Paper Series, 2017
<div class="section abstract"><div class="htmlview paragraph">Large-eddy simulation (LES) is a useful approach for the simulation of turbulent flow and combustion processes in internal combustion engines. This study employs the ANSYS Forte CFD package and explores several key and fundamental components of LES, namely, the subgrid-scale (SGS)
Chi-Wei Tsang, Yue Wang, Cheng Wang, Anthony Shelburn, Long Liang, Karthik Puduppakkam, Abhijit Modak, Chitralkumar Naik, Ellen Meeks, Christopher Rutland   +9 more
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