Dynamic Stall Characteristics and Modelling of Time-Varying Pitching Kinematics

Fuente: arXiv
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Main Authors: Rezapour, Sahar, Mulleners, Karen
Format: Preprint
Published: 2025
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author Rezapour, Sahar
Mulleners, Karen
author_facet Rezapour, Sahar
Mulleners, Karen
contents We present an experimental investigation examining how the complexity of pitching kinematics influences dynamic stall characteristics, including the stall delay and aerodynamic force response. The study examines whether the pitch rate defined at the static stall angle adequately characterises time-varying pitching kinematics for stall onset prediction. We then evaluate the performance of the generalised Goman-Khrabrov model in predicting force responses of nonlinear pitching motions and propose necessary modifications to extend the model's applicability to complex kinematics.
format Preprint
id arxiv_https___arxiv_org_abs_2508_10647
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Dynamic Stall Characteristics and Modelling of Time-Varying Pitching Kinematics
Rezapour, Sahar
Mulleners, Karen
Fluid Dynamics
We present an experimental investigation examining how the complexity of pitching kinematics influences dynamic stall characteristics, including the stall delay and aerodynamic force response. The study examines whether the pitch rate defined at the static stall angle adequately characterises time-varying pitching kinematics for stall onset prediction. We then evaluate the performance of the generalised Goman-Khrabrov model in predicting force responses of nonlinear pitching motions and propose necessary modifications to extend the model's applicability to complex kinematics.
title Dynamic Stall Characteristics and Modelling of Time-Varying Pitching Kinematics
topic Fluid Dynamics
url https://arxiv.org/abs/2508.10647