Large-Eddy Simulation of Three-Dimensional Turbulent Free Surface Flow Past a Complex Stream Restoration Structure

2015 ◽  
Vol 141 (10) ◽  
pp. 04015022 ◽  
Author(s):  
Seokkoo Kang ◽  
Fotis Sotiropoulos
Keyword(s):  
Free Surface ◽  
Large Eddy Simulation ◽  
Stream Restoration ◽  
Three Dimensional ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Eddy Simulation ◽  
Flow Past ◽  
Large Eddy

Large-eddy simulation of the turbulent free-surface flow in an unbaffled stirred tank reactor

2010 ◽  
Vol 65 (15) ◽  
pp. 4307-4322 ◽  
Author(s):  
N. Lamarque ◽  
B. Zoppé ◽  
O. Lebaigue ◽  
Y. Dolias ◽  
M. Bertrand ◽  
...  
Keyword(s):  
Free Surface ◽  
Large Eddy Simulation ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Stirred Tank ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Eddy Simulation ◽  
Large Eddy

Large-eddy simulation of turbulent free surface flow over a gravel bed

2021 ◽  
pp. 1-15
Author(s):  
Zhihua Xie ◽  
Binliang Lin ◽  
Roger A. Falconer ◽  
Andrew Nichols ◽  
Simon J. Tait ◽  
...  
Keyword(s):  
Free Surface ◽  
Large Eddy Simulation ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Gravel Bed ◽  
Eddy Simulation ◽  
Large Eddy

scholarly journals Numerical Simulation of Free Surface Flow on Spillways and Channel Chutes with Wall and Step Abutments by Coupling Turbulence and Air Entrainment Models

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3036
Author(s):  
Le Thi Thu Hien ◽  
Duong Hoai Duc
Keyword(s):  
Free Surface ◽  
Free Surface Flow ◽  
Air Entrainment ◽  
Surface Flow ◽  
Navier Stokes ◽  
Eddy Simulation ◽  
Optimal Distance ◽  
Large Eddy ◽  
Flow Through ◽  
Turbulent Models

Spillways and channel chutes are widely used in hydraulic works. Two kinds of abutment—walls and steps—are usually constructed to dissipate energy; however, they may also cause cavitation at the abutment position. In this study, we used Flow 3D with the Reynolds-averaged Navier–Stokes (RANS) and large eddy simulation (LES) turbulent models which included air entrainment to simulate the free surface flow through the spillway, channel chute and stilling basin of the Ngan Truoi construction to optimize the configuration of walls and dams. We measured the water level, velocity and pressure to estimate the influence of grid size and the turbulent model type used. Our results highlight the need to include air entrainment in the model simulating rapid flow over a hydraulic construction. With adjustments for energy loss, this study shows that walls provide the best results and the optimal distance between two walls is 2.8 m.

Large‐Eddy Simulation of Three‐Dimensional Flow Structures Over Wave‐generated Ripples

2021 ◽  
Author(s):  
Chuang Jin ◽  
Giovanni Coco ◽  
Rafael O. Tinoco ◽  
Pallav Ranjan ◽  
Jorge San Juan ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Three Dimensional ◽  
Flow Structures ◽  
Three Dimensional Flow ◽  
Dimensional Flow ◽  
Eddy Simulation ◽  
Large Eddy

Large eddy simulation of flow past road vehicles subjected to pitching oscillation

2011 ◽  
Author(s):  
Yuan Cheng ◽  
Makoto Tsubokura ◽  
Takuji Nakashima ◽  
Takahide Nouzawa ◽  
Yoshihiro Okada
Keyword(s):  
Large Eddy Simulation ◽  
Road Vehicles ◽  
Eddy Simulation ◽  
Flow Past ◽  
Large Eddy

Large-eddy simulation of turbulent flow past wind turbines/farms: the Virtual Wind Simulator (VWiS)

Wind Energy ◽  
2014 ◽  
Vol 18 (12) ◽  
pp. 2025-2045 ◽  
Author(s):  
Xiaolei Yang ◽  
Fotis Sotiropoulos ◽  
Robert J. Conzemius ◽  
John N. Wachtler ◽  
Mike B. Strong
Keyword(s):  
Large Eddy Simulation ◽  
Turbulent Flow ◽  
Wind Turbines ◽  
Eddy Simulation ◽  
Flow Past ◽  
Large Eddy
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