activity
20182020
most citedAn aeroacoustic investigation into the effect of self-oscillating trailing edge flaplets

34 citations · 58 across the 8 of their papers we have counts for

collaborators

10 papers

physics.flu-dyn2020

Flow turning effect and laminar control by the 3D curvature of leading edge serrations from owl wing

Muthukumar Muthuramalingam, Edward Talboys, Hermann Wagner +1

This work describes a novel mechanism of laminar flow control of a backward swept wing with a comb-like leading edge device. It is inspired by the leading-edge comb on owl feathers…

physics.flu-dyn2020

The Peregrine Falcon's Dive: On the Pull-Out Maneuver and Flight Control Through Wing-Morphing

Omar Selim, Erwin R. Gowree, Christian Lagemann +3

During the pull-out maneuver, Peregrine falcons were observed to adopt specific flight configurations which are thought to offer an aerodynamic advantage over aerial prey. Analysis…

physics.flu-dyn2020

Transition Delay Using Biomimetic Fish Scale Arrays

Muthukumar Muthuramalingam, Dominik. K. Puckert, Ulrich Rist +1

Aquatic animals have developed effective strategies to reduce their body drag over a long period of time. In this work, the influence of the scales of fish on the laminar-to-turbul…

physics.flu-dyn2020★ 12 cited

Effect of different geometries of self-oscillating trailing-edge flaplets on aerofoil self-noise

E. Talboys, T. F. Geyer, F. Pruefer +1

This paper presents an acoustic study of a standard NACA 0012 aerofoil with additional self-oscillating passive flaplets attached to the trailing edge. The tests with varying geome…

physics.flu-dyn2019

Streak formation in flow over Biomimetic Fish Scale Arrays

Muthukumar Muthuramalingam, Leo S. Villemin, Christoph Bruecker

The surface topology of the scale pattern from the European Sea Bass (Dicentrarchus labrax ) was measured using a digital microscope and geometrically reconstructed using Computer…

physics.flu-dyn2019

The multi-scale nature of Wall shear stress fluctuations in turbulent Rayleigh-Benard convection

Christoph Bruecker, Ronald Du Puits

Measurements of wall shear-stress fluctuations on very long timescales ( 1900 free-fall time units) are reported for turbulent Rayleigh-Benard (RB) convection in air at the he…

physics.flu-dyn2018

Seal and Sea lion Whiskers Detect Slips of Vortices Similar as Rats Sense Textures

Muthukumar Muthuramalingam, Christoph Bruecker

Pinnipeds like seals and sea lions use their whiskers in hunting their prey in dark and turbid conditions. There is no theoretical model or a hypothesis to explain the interaction…

physics.flu-dyn2018★ 34 cited

An aeroacoustic investigation into the effect of self-oscillating trailing edge flaplets

E. Talboys, T. F. Geyer, C. Bruecker

The aeroacoustics of a NACA 0012 aerofoil with an array of self-oscillating flexible flaplets attached on the trailing edge has been investigated at low to moderate chord based Rey…

physics.flu-dyn2018★ 2 cited

Comparative study of wall shear stress at the ascending aorta for different mechanical heart valve prostheses

Qianhui Li, Christoph H. Bruecker

An experimental study is reported which investigates the wall shear stress (WSS) distribution in a transparent model of the human aorta comparing a bileaflet mechanical heart valve…

physics.flu-dyn2018★ 10 cited

Vortex interaction with a rough wall formed by a hexagonal lattice of posts

Qianhui Li, Christoph Bruecker

An experimental study is reported which investigates the head-on collision of a laminar vortex ring of diameter D (ReΓ= 3000) on a fakir-like surface composed of circular posts of…