Work

Dynamic Stall Characteristics and Modeling of Time-Varying Pitching Kinematics

Year: 2026

Type: article

Abstract: 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.

Source: AIAA Journal

DOI: 10.2514/1.j066234

Authors: Sahar Rezapour, Karen Mulleners

Institution: École Polytechnique Fédérale de Lausanne

Language: English

Topic: Aeroelasticity and Vibration Control

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

Award: Dynamic stall management for improving aerodynamic robustness of H-type wind turbine