Implicit and conventional large eddy simulation of flow around a circular cylinder at Reynolds number of 3900
Implicit and conventional large eddy simulation of flow around a circular cylinder at Reynolds number of 3900
The implicit Large Eddy Simulation (iLES) incorporating an unstructured 3rd-order Weighted Essential Non-Oscillatory (WENO) reconstruction method and the conventional Large Eddy Simulation with Wall Adapting Local Eddy-Viscosity (WALE) are investigated on the flow around a circular cylinder at a Reynolds number of 3900. Simulations are carried out in the framework of open-source package OpenFOAM with a 2nd-order Euler implicit time integration and Pressure-Implicit Splitting-Operator (PISO) algorithm is used for the pressure-velocity coupling. The results are compared to the high fidelity experiment and DNS data, and demonstrated a favourable performance for iLES with a 3rd-order WENO scheme on the instantaneous flow structure. The conventional LES on the prediction of mean surface pressure coefficient and velocity profiles on the wake can be beneficial by reducing the effect of Rhie-Chow interpolation. The spectral analysis reveals that the current simulations are also capturing Von Karman shedding frequencies and shear layer frequencies. Finally, distinct features of iLES and LES are discussed.
Aerospace Research Central
Li, Zhuoneng
bd8601a6-add5-44d0-9867-b6451ef7a87d
Da Ronch, Andrea
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Rana, Zeeshan A.
f843dc55-c14e-4913-8ab7-f7aa7ab07e87
Jenkins, Karl
d7c64219-64b9-4a95-ba4a-37c5af1b5e56
Li, Zhuoneng
bd8601a6-add5-44d0-9867-b6451ef7a87d
Da Ronch, Andrea
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Rana, Zeeshan A.
f843dc55-c14e-4913-8ab7-f7aa7ab07e87
Jenkins, Karl
d7c64219-64b9-4a95-ba4a-37c5af1b5e56
Li, Zhuoneng, Da Ronch, Andrea, Rana, Zeeshan A. and Jenkins, Karl
(2024)
Implicit and conventional large eddy simulation of flow around a circular cylinder at Reynolds number of 3900.
In AIAA SciTech Forum and Exposition, 2024.
Aerospace Research Central..
(doi:10.2514/6.2024-0064).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The implicit Large Eddy Simulation (iLES) incorporating an unstructured 3rd-order Weighted Essential Non-Oscillatory (WENO) reconstruction method and the conventional Large Eddy Simulation with Wall Adapting Local Eddy-Viscosity (WALE) are investigated on the flow around a circular cylinder at a Reynolds number of 3900. Simulations are carried out in the framework of open-source package OpenFOAM with a 2nd-order Euler implicit time integration and Pressure-Implicit Splitting-Operator (PISO) algorithm is used for the pressure-velocity coupling. The results are compared to the high fidelity experiment and DNS data, and demonstrated a favourable performance for iLES with a 3rd-order WENO scheme on the instantaneous flow structure. The conventional LES on the prediction of mean surface pressure coefficient and velocity profiles on the wake can be beneficial by reducing the effect of Rhie-Chow interpolation. The spectral analysis reveals that the current simulations are also capturing Von Karman shedding frequencies and shear layer frequencies. Finally, distinct features of iLES and LES are discussed.
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e-pub ahead of print date: 4 January 2024
Venue - Dates:
2024 AIAA SciTech Forum, Hyatt Regency Orlando, Orlando, United States, 2024-01-08 - 2024-01-12
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Local EPrints ID: 492833
URI: http://eprints.soton.ac.uk/id/eprint/492833
PURE UUID: 518d6262-9098-4740-9b29-2412706de6c8
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Date deposited: 15 Aug 2024 16:54
Last modified: 16 Aug 2024 01:46
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Author:
Zhuoneng Li
Author:
Zeeshan A. Rana
Author:
Karl Jenkins
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