# Stall onset on aerofoils at low to moderately high Reynolds number flows

@article{Morris2013StallOO, title={Stall onset on aerofoils at low to moderately high Reynolds number flows}, author={Wallace J. Morris and Zvi Rusak}, journal={Journal of Fluid Mechanics}, year={2013}, volume={733}, pages={439 - 472} }

Abstract The inception of leading-edge stall on stationary, two-dimensional, smooth, thin aerofoils at low to moderately high chord Reynolds number flows is investigated by a reduced-order, multiscale model problem via numerical simulations. The asymptotic theory demonstrates that a subsonic flow about a thin aerofoil can be described in terms of an outer region, around most of the aerofoil’s chord, and an inner region, around the nose, that asymptotically match each other. The flow in the…

## 32 Citations

### On the leading-edge suction and stagnation-point location in unsteady flows past thin aerofoils

- Engineering, PhysicsJournal of Fluid Mechanics
- 2020

Unsteady thin-aerofoil theory is a low-order method for calculating the forces and moment developed on a camber line undergoing arbitrary motion, based on potential-flow theory. The vorticity…

### Variation of leading-edge suction during stall for unsteady aerofoil motions

- Engineering, PhysicsJournal of Fluid Mechanics
- 2020

Abstract The suction force at the leading edge of a round-nosed aerofoil is an important indicator of the state of the flow over the leading edge and, often, the entire aerofoil. The leading-edge…

### High-fidelity numerical simulation of the flow field around a NACA-0012 aerofoil from the laminar separation bubble to a full stall

- Physics, Engineering
- 2017

ABSTRACT In the present work, large eddy simulations of the flow field around a NACA-0012 aerofoil near stall conditions are performed at a Reynolds number of 5 × 104, Mach number of 0.4, and at…

### Numerical Investigation of Vertical-Axis Wind Turbines at Low Reynolds Number

- Engineering, Physics
- 2016

This thesis is aimed at numerically investigating the aerodynamics and the starting of a vertical-axis wind turbine at low Reynolds number using the immersed boundary method. The influence of the…

### Flow criticality governs leading-edge-vortex initiation on finite wings in unsteady flow

- Engineering, PhysicsJournal of Fluid Mechanics
- 2021

Abstract Leading-edge-vortex (LEV) formation often characterizes the unsteady flows past airfoils and wings. Recent research showed that initiation of LEV formation on airfoils in two-dimensional…

### Experimental quantification of unsteady leading-edge flow separation

- Engineering, PhysicsJournal of Fluid Mechanics
- 2022

Abstract We propose here a method to experimentally quantify unsteady leading-edge flow separation on aerofoils with finite thickness. The methodology relies on the computation of a leading-edge…

### Leading-edge flow criticality as a governing factor in leading-edge vortex initiation in unsteady airfoil flows

- Physics, Engineering
- 2018

A leading-edge suction parameter (LESP) that is derived from potential flow theory as a measure of suction at the airfoil leading edge is used to study initiation of leading-edge vortex (LEV)…

### Geometrically-exact unsteady model for airfoils undergoing large amplitude maneuvers

- Physics, Engineering
- 2014

### Coriolis Effect on Dynamic Stall in a Vertical Axis Wind Turbine

- Physics, Engineering
- 2013

The immersed boundary method is used to simulate the flow around a two-dimensional cross section of a rotating NACA 0018 airfoil in order to investigate the dynamic stall occurring on a vertical axis…

### Delayed Detached Eddy Simulation of Airfoil Stall Flows Using High-Order Schemes

- Engineering
- 2014

An advanced hybrid Reynolds-Averaged Navier–Stokes/large eddy simulation (RANS/LES) turbulence model delayed detached eddy simulation (DDES) is conducted in thispaper to investigate the dynamic stall…

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