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Strategies for modeling homogeneous isotropic turbulence and investigation of spatially correlated aerodynamic forces on a stationary model

Title:

Strategies for modeling homogeneous isotropic turbulence and investigation of spatially correlated aerodynamic forces on a stationary model

Yu, Jianhan, Li, Mingshui and Stathopoulos, Ted (2019) Strategies for modeling homogeneous isotropic turbulence and investigation of spatially correlated aerodynamic forces on a stationary model. Journal of Fluids and Structures, 90 . pp. 43-56. ISSN 0889-9746

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Official URL: https://doi.org/10.1016/j.jfluidstructs.2019.06.00...

Abstract

A numerical simulation method is proposed for the generation of homogeneous isotropic turbulence and is applied to the investigation of the spanwise coherence aerodynamic force on a stationary airfoil. First, the inflow turbulence is generated by modeling a grid at the inlet of the computational domain. To verify the accuracy of the generated turbulence field, a series of relevant parameters are compared with the results of wind tunnel tests and previous studies. A model with NACA 0015 profile is then placed in the downstream turbulence. The relationship between the spanwise correlation width of the vertical turbulence component and the lift force is determined. Possible mechanisms for the result are discussed. This study demonstrates that the proposed turbulence generation method is an effective tool for investigating the spatial distribution of unsteady aerodynamic loads on elongated bodies.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Building, Civil and Environmental Engineering
Item Type:Article
Refereed:Yes
Authors:Yu, Jianhan and Li, Mingshui and Stathopoulos, Ted
Journal or Publication:Journal of Fluids and Structures
Date:24 June 2019
Funders:
  • National Natural Science Foundation of China
Digital Object Identifier (DOI):10.1016/j.jfluidstructs.2019.06.002
ID Code:986082
Deposited By: THEODORE STATHOPOULOS
Deposited On:15 Jan 2020 21:36
Last Modified:15 Jan 2020 21:36
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