1404 Numerical Simulation of a periodically perturbed and separated flow over a backward-facing step-using a compressible code and Myong-Kasagi low-Re turbulence model

2001 ◽  
Vol 2001 (0) ◽  
pp. 196
Author(s):  
Hitoshi Fujiwara ◽  
Chuichi Arakawa
Keyword(s):  
Numerical Simulation ◽  
Turbulence Model ◽  
Separated Flow ◽  
Backward Facing Step

scholarly journals Numerical Simulation without Turbulence Model for Backward-Facing Step Flow.

1993 ◽  
Vol 36 (4) ◽  
pp. 577-583 ◽  
Author(s):  
Makoto Oki ◽  
Toshifumi Iwasawa ◽  
Masumitsu Suehiro ◽  
Tomomi Umeda ◽  
Yasuki Nakayama ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Turbulence Model ◽  
Backward Facing Step ◽  
Step Flow

scholarly journals Direct Numerical Simulation of separated turbulent flow in axisymmetric diffuser

2021 ◽  
Vol 2103 (1) ◽  
pp. 012214
Author(s):  
A S Stabnikov ◽  
D K Kolmogorov ◽  
A V Garbaruk ◽  
F R Menter
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Turbulent Flow ◽  
Turbulence Model ◽  
Eddy Viscosity ◽  
Separated Flow ◽  
Model Improvement ◽  
Good Agreement

Abstract Direct numerical simulation (DNS) of the separated flow in axisymmetric CS0 diffuser is conducted. The obtained results are in a good agreement with experimental data of Driver and substantially supplement them. Along with other data, eddy viscosity extracted from performed DNS could be used for RANS turbulence model improvement.

Numerical Simulation of Supersonic Separated Flow over Inclined Backward-Facing Step Using RANS and LES Methods

2020 ◽  
Vol 12 (4) ◽  
pp. 453-463
Author(s):  
S. M. Bosnyakov ◽  
A. P. Duben ◽  
A. A. Zheltovodov ◽  
T. K. Kozubskaya ◽  
S. V. Matyash ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Separated Flow ◽  
Backward Facing Step

scholarly journals Numerical Simulation without Turbulence Model for Backward-Facing Step Flow.

1991 ◽  
Vol 57 (540) ◽  
pp. 2589-2594
Author(s):  
Makoto OKI ◽  
Toshifumi IWASAWA ◽  
Masumitsu SUEHIRO ◽  
Tomomi UMEDA ◽  
Yasuki NAKAYAMA ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Turbulence Model ◽  
Backward Facing Step ◽  
Step Flow

Modeling of mass transfer in biofilms in oscillatory flow conditions using k-ɛ turbulence model

2003 ◽  
Vol 3 (1-2) ◽  
pp. 201-207
Author(s):  
H. Nagaoka ◽  
T. Nakano ◽  
D. Akimoto
Keyword(s):  
Numerical Simulation ◽  
Mass Transfer ◽  
Turbulence Model ◽  
Uptake Rate ◽  
Oscillatory Flow ◽  
Substrate Uptake ◽  
Flow Conditions ◽  
Mass Transfer Mechanism ◽  
Substrate Uptake Rate ◽  
Good Agreement

The objective of this research is to investigate mass transfer mechanism in biofilms under oscillatory flow conditions. Numerical simulation of turbulence near a biofilm was conducted using the low Reynold’s number k-ɛ turbulence model. Substrate transfer in biofilms under oscillatory flow conditions was assumed to be carried out by turbulent diffusion caused by fluid movement and substrate concentration profile in biofilm was calculated. An experiment was carried out to measure velocity profile near a biofilm under oscillatory flow conditions and the influence of the turbulence on substrate uptake rate by the biofilm was also measured. Measured turbulence was in good agreement with the calculated one and the influence of the turbulence on the substrate uptake rate was well explained by the simulation.

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