Journal article
Numerical investigation of a plunging flat-plate airfoil using a diffuse interface immersed boundary method
International Journal for Computational Methods in Engineering Science and Mechanics , Vol.24(1), pp.52-61
2023
DOI: 10.1080/15502287.2022.2049399
Abstract
This study investigates the capabilities of a diffuse interface immersed boundary method in the simulation of fluid flow over an oscillating flat-plate airfoil at moderately high Reynolds numbers where interacting unsteady vortical flows control the flow behavior. The recently developed and modified Smoothed Profile Method (SPM) is adopted as a diffuse interface immersed boundary solver to model the fluid-structure interaction (FSI) problem. While in general diffuse interface methods are simpler to implement relative to sharp-interface methods (SIMs), they have been thought to lose accuracy in the simulation of moderate Reynolds number flows. The simulation results show that the lift coefficient and vorticity contours from SPM match well with experiments. Moreover, our detailed analysis of the vorticity fluxes at the airfoil leading edge and the comparison with experiments also show that SPM can be used for moderate Reynolds number external aerodynamics problems applicable to micro-air vehicles.
Details
- Title: Subtitle
- Numerical investigation of a plunging flat-plate airfoil using a diffuse interface immersed boundary method
- Creators
- Fazlolah Mohaghegh - University of California, Los AngelesMatthew JanechekJames H J BuchholzH S Udaykumar
- Resource Type
- Journal article
- Publication Details
- International Journal for Computational Methods in Engineering Science and Mechanics , Vol.24(1), pp.52-61
- DOI
- 10.1080/15502287.2022.2049399
- ISSN
- 1550-2295
- Publisher
- Taylor & Francis
- Language
- English
- Electronic publication date
- 03/09/2022
- Date published
- 2023
- Academic Unit
- Injury Prevention Research Center; Mechanical Engineering
- Record Identifier
- 9984229963002771
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