scholarly journals Large Eddy Simulation of a flow through circular tube bundle

2011 ◽  
Vol 35 (9) ◽  
pp. 4393-4406 ◽  
Author(s):  
M. Salinas-Vázquez ◽  
M.A. de la Lama ◽  
W. Vicente ◽  
E. Martínez
Keyword(s):  
Large Eddy Simulation ◽  
Circular Tube ◽  
Tube Bundle ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Flow Through

LES and PANS of Turbulent Flow Through a Staggered Tube Bundle

2017 ◽  
Author(s):  
G. Minelli ◽  
S. Krajnović ◽  
B. Basara
Keyword(s):  
Experimental Data ◽  
Large Eddy Simulation ◽  
Tube Bundle ◽  
Dominant Frequency ◽  
Navier Stokes ◽  
Numerical Techniques ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Flow Through ◽  
Good Agreement

Two unsteady numerical techniques, Partially-Averaged Navier Stokes (PANS) and Large Eddy Simulation (LES), are used to predict the flow in a tube bundle. The results were compared with the existing experimental data. Both methods predicted the flow in a relatively good agreement with the experimental data although the PANS simulation used only fifty percent of the computational nodes compared to the LES. The results of the simulations are used to study the unsteadiness in the flow and identify a dominant frequency of the flow.

Effect of Pulsation and Acceleration of Liquid Metal Turbulent Flow Through a Horizontal Channel by Large Eddy Simulation

2020 ◽  
Vol 6 (4) ◽  
Author(s):  
N. Satish ◽  
K. Venkatasubbaiah
Keyword(s):  
Heat Transfer ◽  
Liquid Metal ◽  
Large Eddy Simulation ◽  
Turbulent Flow ◽  
Horizontal Channel ◽  
Two Dimensional ◽  
Unsteady State ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Flow Through

Abstract Pulsation and acceleration of liquid metal turbulent flow through a horizontal channel has been numerically studied using a large eddy simulation (LES) technique. The effect of inlet pulsation and acceleration on flow and heat transfer characteristics of low Prandtl number liquid metal flow have been investigated and reported here. Results have been presented for different Reynolds numbers, different amplitudes, and frequency with constant bottom wall thickness. The flow field is modeled as unsteady-state two-dimensional incompressible turbulent-forced convection flow. Turbulence is modeled using a LES technique. Two-dimensional unsteady-state heat conduction equation is solved to know the temperature distribution in the solid region. Finite difference method solver is developed for solving the governing equations using sixth-order accuracy of compact schemes. The average Nusselt number shows cyclic variation with respect to time in pulsation flows. The enhancement of heat transfer with pulsation at amplitude 0.4 and frequency 100 Hz is 6.51%. The rate of heat transfer increases in pulsation flow compared to quasi-steady flow. The inlet acceleration shows a significant effect on flow characteristics. The present results are compared with direct numerical simulation (DNS) results available in the literature and matching well with DNS data.

LARGE EDDY SIMULATION OF THE PHENOMENOLOGY OF THE FLOW THROUGH A LINEAR BLADE CASCADE – THE MEAN FIELD

2017 ◽  
Vol 20 (1) ◽  
pp. 1-20
Author(s):  
Karima Heguehoug ép. Benkara-Mostefa ◽  
Zoubir Nemouchi ◽  
Lahouari Adjlout
Keyword(s):  
Large Eddy Simulation ◽  
Mean Field ◽  
Eddy Simulation ◽  
Blade Cascade ◽  
Large Eddy ◽  
Flow Through ◽  
The Mean

scholarly journals Advanced benchmark of the flow through a mixing vane grid – Large eddy simulation validation

2021 ◽  
Vol 381 ◽  
pp. 111335
Author(s):  
Benjamin Farges ◽  
Marie-Charlotte Gauffre ◽  
Sofiane Benhamadouche ◽  
Pierre Badel ◽  
Vincent Faucher ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Eddy Simulation ◽  
Simulation Validation ◽  
Large Eddy ◽  
Flow Through
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