Simulation of the Flow past a Circular Cylinder Using an Unsteady Panel Method

N. Ramos-García; Hamid Sarlak Chivaee; S. J. Andersen; J. N. Sørensen

doi:10.1016/j.apm.2016.12.001

Simulation of the Flow past a Circular Cylinder Using an Unsteady Panel Method

N. Ramos-García, Hamid Sarlak Chivaee, S. J. Andersen, J. N. Sørensen

Technical University of Denmark

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

In the present work, an in-house UnSteady Double Wake Model (USDWM) is developed for simulating general flow problems behind bodies. The model is presented and used to simulate flows past a circular cylinder at subcritical, supercritical, and transcritical flows. The flow model is a two-dimensional panel method which uses the unsteady double wake technique to model flow separation and its dynamics. In the present work the separation location is obtained from experimental data and fixed in time. The highly unsteady flow field behind the cylinder is analyzed in detail. The results are compared with experiments and Unsteady Reynolds-Averaged Navier Stokes (URANS) simulations and show good agreement in terms of the vortex shedding characteristics, drag, and pressure coefficients for the different flow regimes.

Publisher Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Applied Mathematical Modelling. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Mathematical Modelling, [44, (2016)] DOI: 10.1016/j.apm.2016.12.001

© 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Original language	English
Pages (from-to)	206-222
Number of pages	17
Journal	Applied Mathematical Modelling
Volume	44
Early online date	23 Dec 2016
DOIs	https://doi.org/10.1016/j.apm.2016.12.001
Publication status	Published - Apr 2017

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Applied Mathematical Modelling. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Mathematical Modelling, [44, (2016)] DOI: 10.1016/j.apm.2016.12.001

© 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

Circular cylinder
Unsteady flow
Panel method
Vortex method
URANS

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10.1016/j.apm.2016.12.001

Cite this

@article{239d6d716f094d04980845ec17830cbc,

title = "Simulation of the Flow past a Circular Cylinder Using an Unsteady Panel Method",

abstract = "In the present work, an in-house UnSteady Double Wake Model (USDWM) is developed for simulating general flow problems behind bodies. The model is presented and used to simulate flows past a circular cylinder at subcritical, supercritical, and transcritical flows. The flow model is a two-dimensional panel method which uses the unsteady double wake technique to model flow separation and its dynamics. In the present work the separation location is obtained from experimental data and fixed in time. The highly unsteady flow field behind the cylinder is analyzed in detail. The results are compared with experiments and Unsteady Reynolds-Averaged Navier Stokes (URANS) simulations and show good agreement in terms of the vortex shedding characteristics, drag, and pressure coefficients for the different flow regimes.Publisher Statement: NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Applied Mathematical Modelling. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Mathematical Modelling, [44, (2016)] DOI: 10.1016/j.apm.2016.12.001{\textcopyright} 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/",

keywords = "Circular cylinder, Unsteady flow, Panel method, Vortex method, URANS",

author = "N. Ramos-Garc{\'i}a and {Sarlak Chivaee}, Hamid and Andersen, {S. J.} and S{\o}rensen, {J. N.}",

note = "NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Applied Mathematical Modelling. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Mathematical Modelling, [44, (2016)] DOI: 10.1016/j.apm.2016.12.001 {\textcopyright} 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/",

year = "2017",

month = apr,

doi = "10.1016/j.apm.2016.12.001",

language = "English",

volume = "44",

pages = "206--222",

journal = "Applied Mathematical Modelling",

publisher = "Elsevier",

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T1 - Simulation of the Flow past a Circular Cylinder Using an Unsteady Panel Method

AU - Ramos-García, N.

AU - Sarlak Chivaee, Hamid

AU - Andersen, S. J.

AU - Sørensen, J. N.

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Applied Mathematical Modelling. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Mathematical Modelling, [44, (2016)] DOI: 10.1016/j.apm.2016.12.001 © 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2017/4

Y1 - 2017/4

N2 - In the present work, an in-house UnSteady Double Wake Model (USDWM) is developed for simulating general flow problems behind bodies. The model is presented and used to simulate flows past a circular cylinder at subcritical, supercritical, and transcritical flows. The flow model is a two-dimensional panel method which uses the unsteady double wake technique to model flow separation and its dynamics. In the present work the separation location is obtained from experimental data and fixed in time. The highly unsteady flow field behind the cylinder is analyzed in detail. The results are compared with experiments and Unsteady Reynolds-Averaged Navier Stokes (URANS) simulations and show good agreement in terms of the vortex shedding characteristics, drag, and pressure coefficients for the different flow regimes.Publisher Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Applied Mathematical Modelling. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Mathematical Modelling, [44, (2016)] DOI: 10.1016/j.apm.2016.12.001© 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

AB - In the present work, an in-house UnSteady Double Wake Model (USDWM) is developed for simulating general flow problems behind bodies. The model is presented and used to simulate flows past a circular cylinder at subcritical, supercritical, and transcritical flows. The flow model is a two-dimensional panel method which uses the unsteady double wake technique to model flow separation and its dynamics. In the present work the separation location is obtained from experimental data and fixed in time. The highly unsteady flow field behind the cylinder is analyzed in detail. The results are compared with experiments and Unsteady Reynolds-Averaged Navier Stokes (URANS) simulations and show good agreement in terms of the vortex shedding characteristics, drag, and pressure coefficients for the different flow regimes.Publisher Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Applied Mathematical Modelling. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Mathematical Modelling, [44, (2016)] DOI: 10.1016/j.apm.2016.12.001© 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

KW - Circular cylinder

KW - Unsteady flow

KW - Panel method

KW - Vortex method

KW - URANS

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DO - 10.1016/j.apm.2016.12.001

M3 - Article

VL - 44

SP - 206

EP - 222

JO - Applied Mathematical Modelling

JF - Applied Mathematical Modelling

ER -

Simulation of the Flow past a Circular Cylinder Using an Unsteady Panel Method

Abstract

Bibliographical note

Keywords

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