Investigation of Airfoil Unsteady Aerodynamic Characteristics Based on Finite Macro-Element and TFI Hybrid Dynamic Mesh Correction

Tang Han; Gao Zhenxun

doi:10.1016/j.proeng.2014.12.551

Investigation of Airfoil Unsteady Aerodynamic Characteristics Based on Finite Macro-Element and TFI Hybrid Dynamic Mesh Correction

Tang Han
, Gao Zhenxun^*

^*Corresponding author for this work

School of Aeronautic Science and Engineering

Beihang University

Research output: Contribution to journal › Conference article › peer-review

Abstract

The hybrid dynamic mesh method combining finite macro-element with transfinite interpolation (TFI) is adopted in this paper which ensures mesh quality for large deformations and high efficiency. Besides, TFI is modified to preserve the grid orthogonality near the boundary using rotation correction and weighted approach in order to solve its orthogonal problem. The numerical simulation of oscillating airfoil is performed by solving Reynolds Averaged Navier-Stokes (RANS) equations with hybrid dynamic mesh method. The influences of oscillation parameters and Mach number on the hysteresis effect are investigated and the separation vortex pattern and evolution procedure are presented. Moreover, numerical results show the occurrence of lock-in zone. The effect of oscillation amplitude and frequency on it and the characteristics of vortex shedding are discussed.

Original language	English
Pages (from-to)	384-390
Number of pages	7
Journal	Procedia Engineering
Volume	99
DOIs	https://doi.org/10.1016/j.proeng.2014.12.551
State	Published - 2015
Event	Asia-Pacific International Symposium on Aerospace Technology, APISAT 2014 - Shanghai, China Duration: 24 Sep 2014 → 26 Sep 2014

Keywords

TFI
finite macro-element
hysteresis effect
lock-in
vortex shedding

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10.1016/j.proeng.2014.12.551

Cite this

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title = "Investigation of Airfoil Unsteady Aerodynamic Characteristics Based on Finite Macro-Element and TFI Hybrid Dynamic Mesh Correction",

abstract = "The hybrid dynamic mesh method combining finite macro-element with transfinite interpolation (TFI) is adopted in this paper which ensures mesh quality for large deformations and high efficiency. Besides, TFI is modified to preserve the grid orthogonality near the boundary using rotation correction and weighted approach in order to solve its orthogonal problem. The numerical simulation of oscillating airfoil is performed by solving Reynolds Averaged Navier-Stokes (RANS) equations with hybrid dynamic mesh method. The influences of oscillation parameters and Mach number on the hysteresis effect are investigated and the separation vortex pattern and evolution procedure are presented. Moreover, numerical results show the occurrence of lock-in zone. The effect of oscillation amplitude and frequency on it and the characteristics of vortex shedding are discussed.",

keywords = "TFI, finite macro-element, hysteresis effect, lock-in, vortex shedding",

author = "Tang Han and Gao Zhenxun",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors.; Asia-Pacific International Symposium on Aerospace Technology, APISAT 2014 ; Conference date: 24-09-2014 Through 26-09-2014",

year = "2015",

doi = "10.1016/j.proeng.2014.12.551",

language = "英语",

volume = "99",

pages = "384--390",

journal = "Procedia Engineering",

issn = "1877-7058",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Investigation of Airfoil Unsteady Aerodynamic Characteristics Based on Finite Macro-Element and TFI Hybrid Dynamic Mesh Correction

AU - Han, Tang

AU - Zhenxun, Gao

PY - 2015

Y1 - 2015

N2 - The hybrid dynamic mesh method combining finite macro-element with transfinite interpolation (TFI) is adopted in this paper which ensures mesh quality for large deformations and high efficiency. Besides, TFI is modified to preserve the grid orthogonality near the boundary using rotation correction and weighted approach in order to solve its orthogonal problem. The numerical simulation of oscillating airfoil is performed by solving Reynolds Averaged Navier-Stokes (RANS) equations with hybrid dynamic mesh method. The influences of oscillation parameters and Mach number on the hysteresis effect are investigated and the separation vortex pattern and evolution procedure are presented. Moreover, numerical results show the occurrence of lock-in zone. The effect of oscillation amplitude and frequency on it and the characteristics of vortex shedding are discussed.

AB - The hybrid dynamic mesh method combining finite macro-element with transfinite interpolation (TFI) is adopted in this paper which ensures mesh quality for large deformations and high efficiency. Besides, TFI is modified to preserve the grid orthogonality near the boundary using rotation correction and weighted approach in order to solve its orthogonal problem. The numerical simulation of oscillating airfoil is performed by solving Reynolds Averaged Navier-Stokes (RANS) equations with hybrid dynamic mesh method. The influences of oscillation parameters and Mach number on the hysteresis effect are investigated and the separation vortex pattern and evolution procedure are presented. Moreover, numerical results show the occurrence of lock-in zone. The effect of oscillation amplitude and frequency on it and the characteristics of vortex shedding are discussed.

KW - TFI

KW - finite macro-element

KW - hysteresis effect

KW - lock-in

KW - vortex shedding

UR - https://www.scopus.com/pages/publications/84978100334

U2 - 10.1016/j.proeng.2014.12.551

DO - 10.1016/j.proeng.2014.12.551

M3 - 会议文章

AN - SCOPUS:84978100334

SN - 1877-7058

VL - 99

SP - 384

EP - 390

JO - Procedia Engineering

JF - Procedia Engineering

T2 - Asia-Pacific International Symposium on Aerospace Technology, APISAT 2014

Y2 - 24 September 2014 through 26 September 2014

ER -

Investigation of Airfoil Unsteady Aerodynamic Characteristics Based on Finite Macro-Element and TFI Hybrid Dynamic Mesh Correction

Abstract

Keywords

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