Large eddy simulation of cross-flow through a staggered tube bundle at subcritical Reynolds number

2007 ◽  
Vol 23 (8) ◽  
pp. 1215-1230 ◽  
Author(s):  
C. Liang ◽  
G. Papadakis
Keyword(s):  
Reynolds Number ◽  
Large Eddy Simulation ◽  
Tube Bundle ◽  
Cross Flow ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Flow Through

Fluid-Structure Interaction of a Steam Generator Tube in a Cross-Flow Using Large-Eddy Simulation

2006 ◽  
Author(s):  
Karl Kuehlert ◽  
Stephen Webb ◽  
Mandar Joshi ◽  
David Schowalter
Keyword(s):  
Reynolds Number ◽  
Large Eddy Simulation ◽  
Steam Generator ◽  
Cross Flow ◽  
Tube Diameter ◽  
Degree Of Freedom ◽  
Steam Generator Tube ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Two Degree Of Freedom

The behavior of a steam generator tube in a cross flow is examined by coupling the ABAQUS structural analysis code to Large-Eddy Simulation (LES) within the FLUENT Computational Fluid Dynamics solver. The moving tube is assumed to be within an infinite staggered array of other tubes, the centers being separated in the streamwise direction by 1.31 times the tube diameter and in the cross-stream direction by 2.73 times the tube diameter of 0.688 inches. The Reynolds number based upon total mass flow and one tube diameter is 1.0 × 105, indicating a transcritical regime, meaning that the boundary layer is expected to be transitional. The study begins with investigation of free two degree-of-freedom simulations of an individual tube, which are performed at low Reynolds number (3,800), where results are compared favorably to experimental results. High Reynolds number (3 × 106) two degree-of-freedom single tube simulations are also demonstrated. This is followed by a comparison between experiment and computation of flow past a stationary tube bank. Finally, in-phase free oscillation of the single row of tubes is simulated. System behavior in terms of oscillation frequency and amplitude, along with qualitative flow characteristics are discussed.

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.

Large Eddy Simulation of a Supercritical Fuel Jet in Cross Flow using GPU-Acceleration

2016 ◽  
Author(s):  
Kalyana C. Gottiparthi ◽  
Ramanan Sankaran ◽  
Anthony M. Ruiz ◽  
Guilhem Lacaze ◽  
Joseph C. Oefelein
Keyword(s):  
Large Eddy Simulation ◽  
Cross Flow ◽  
Gpu Acceleration ◽  
Eddy Simulation ◽  
Jet In Cross Flow ◽  
Fuel Jet ◽  
Large Eddy

Large Eddy Simulation of Cross Flow in Pipe Junction

2018 ◽  
Author(s):  
Jiajun Chen ◽  
Yue Sun ◽  
Hang Zhang ◽  
Dakui Feng ◽  
Zhiguo Zhang
Keyword(s):  
Large Eddy Simulation ◽  
Stokes Equations ◽  
Numerical Study ◽  
Three Dimensional ◽  
Cross Flow ◽  
Exciting Force ◽  
Navier Stokes ◽  
Pipe Network ◽  
Eddy Simulation ◽  
Large Eddy

Mixing in pipe junctions can play an important role in exciting force and distribution of flow in pipe network. This paper investigated the cross pipe junction and proposed an improved plan, Y-shaped pipe junction. The numerical study of a three-dimensional pipe junction was performed for calculation and improved understanding of flow feature in pipe. The filtered Navier–Stokes equations were used to perform the large-eddy simulation of the unsteady incompressible flow in pipe. From the analysis of these results, it clearly appears that the vortex strength and velocity non-uniformity of centerline, can be reduced by Y-shaped junction. The Y-shaped junction not only has better flow characteristic, but also reduces head loss and exciting force. The results of the three-dimensional improvement analysis of junction can be used in the design of pipe network for industry.

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