Perturbing vortex packets in a turbulent boundary layer

S Zheng, EK Longmire - Journal of fluid mechanics, 2014 - cambridge.org
A zero pressure gradient turbulent boundary layer of downstream, suggesting that a
persistent outer layer organization propagated inwards into the log region. For arrays with …

Structure of turbulent channel flow perturbed by a wall-mounted cylindrical element

G Pathikonda, KT Christensen - AIAA journal, 2015 - arc.aiaa.org
The current study reports structural modifications imposed in fully developed, turbulent
channel flow by an isolated wall-mounted circular cylinder. The cylinder extended into the …

Structure of turbulent channel flow perturbed by cylindrical roughness elements

G Pathikonda - 2013 - ideals.illinois.edu
The current study investigates the structural modifications imposed in fully-developed
turbulent channel flow by an isolated, wall-mounted circular cylinder. The cylinder height is …

[PDF][PDF] Flying PIV investigation of vortex packet evolution in perturbed boundary layers

S Zheng, EK Longmire - PIV13; 10th International Symposium on Particle …, 2013 - Citeseer
ABSTRACT A turbulent boundary layer with zero pressure gradient of Reτ= 2500 was
perturbed using a single spanwise cylinder array with H/δ= 0.2 (H+= 500) and aspect ratio …