Aerodynamic control of low-Reynolds-number airfoil with leading-edge protuberances

MM Zhang, GF Wang, JZ Xu - AIAA journal, 2013 - arc.aiaa.org
This paper presents an experimental investigation of the control of airfoil aerodynamics at a
low Reynolds number of 5× 10 4 within a wide range of attack angle α using a leading-edge …

Numerical investigation on flow control effects of dynamic hump for turbine cascade at different Reynolds number and hump oscillating frequency

R Yang, D Zhong, N Ge - Aerospace Science and Technology, 2019 - Elsevier
From takeoff to cruise, the operating Reynolds number (Re) of the low-pressure turbine
(LPT) in an aero-engine decreases significantly, making the boundary layer near the aft …

Separation control on high lift low-pressure turbine airfoils using pulsed vortex generator jets

RJ Volino, MB Ibrahim - Applied Thermal Engineering, 2012 - Elsevier
Boundary layer separation control has been studied using vortex generator jets (VGJs) on a
very high lift, low-pressure turbine airfoil. Experiments were done under low (0.6%) …

Combined unsteady wakes and active flow control on a low-pressure turbine airfoil

KA Gompertz, JP Bons - Journal of Propulsion and Power, 2011 - arc.aiaa.org
WITH the trend toward higher bypass ratios in turbofans, demands are increasing for the low-
pressure turbines (LPTs) that drive the large fan assemblies. Also, many military and civilian …

Development of mixed flow fans with bio-inspired grooves

J Wang, T Nakata, H Liu - Biomimetics, 2019 - mdpi.com
Mixed flow fan is a kind of widely used turbomachine, which has faced problems of further
performance improvement in traditional design methods in recent decades. Inspired by the …

Separated flow measurements on a highly loaded low-pressure turbine airfoil

RJ Volino - 2010 - asmedigitalcollection.asme.org
Boundary layer separation, transition, and reattachment have been studied on a new, very
high lift, low-pressure turbine airfoil. Experiments were done under low freestream …

Large eddy simulations and experiments on low-Reynolds-number laminar separation control for low-pressure turbine blades with oblong-dimpled surface

Y Cheng, Y Rao, Y Xie - Aerospace Science and Technology, 2023 - Elsevier
Modern high-performance low-pressure turbines (LPT) usually encounter flow problems at
low Reynolds numbers, especially for high-altitude UAVs under cruise conditions. Flow …

Separation control on a very high lift low pressure turbine airfoil using pulsed vortex generator jets

RJ Volino, O Kartuzova, MB Ibrahim - 2011 - asmedigitalcollection.asme.org
Boundary layer separation control has been studied using vortex generator jets (VGJs) on a
very high lift, low-pressure turbine airfoil. Experiments were done under high (4%) …

Passive manipulation of separation-bubble transition using surface modifications

BR McAuliffe, MI Yaras - 2009 - asmedigitalcollection.asme.org
Through experiments using two-dimensional particle-image velocimetry (PIV), this paper
examines the nature of transition in a separation bubble and manipulations of the resultant …

Influence of a novel 3D leading edge geometry on the aerodynamic performance of low pressure turbine blade cascade vanes

A Asghar, WDE Allan… - … Expo: Power for …, 2014 - asmedigitalcollection.asme.org
This paper addresses the issue of aerodynamic performance of a novel 3D leading edge
modification to a reference low pressure turbine blade. An analysis of tubercles found in …