24 citations · 39 across the 7 of their papers we have counts for
7 papers · 1 filter
The Footprint of Laminar Separation on a Wall-Bounded Wing Section at Transitional Reynolds Numbers
Charles Klewicki, Bjoern F. Klose, Gustaaf B. Jacobs +1
When a chordwise Reynolds number (Re) falls below about the performance of wings and aerodynamic sections become sensitive to viscous phenomena, including boundary layer sep…
Spike formation theory in 3D flow separation
Sreejith Santhosh, Haodong Qin, Bjoern F. Klose +3
We develop a frame-invariant theory of material spike formation during flow separation over a no-slip boundary in three-dimensional flows with arbitrary time dependence. Based on t…
Closed SPARSE -- a predictive particle cloud tracer
Daniel Domínguez-Vázquez, Bjoern F. Klose, Gustaaf B. Jacobs
A closed and predictive particle cloud tracer method is presented. The tracer builds upon the Subgrid Particle Averaged Reynolds Stress Equivalent (SPARSE) formulation first introd…
Direct numerical simulation of cambered airfoil aerodynamics at Re = 20,000
Bjoern F. Klose, Geoffrey R. Spedding, Gustaaf B. Jacobs
A comprehensive and detailed overview of the flow topology over a cambered NACA 65(1)-412 airfoil at Re = 20,000 is presented for angles of attack ranging from 0° to 10° using high…
Objective early identification of kinematic instabilities in shear flows
Bjoern F. Klose, Mattia Serra, Gustaaf B. Jacobs
A kinematic approach for the identification of flow instabilities is proposed. By defining a flow instability in the Lagrangian frame as the increased folding of lines of fluid par…
Data-Driven Selection of Actuators for Optimal Control of Airfoil Separation
Debraj Bhattacharjee, Bjoern Klose, Gustaaf B. Jacobs +1
We present a systematic approach for determining the optimal actuator location for separation control from input-output response data, gathered from numerical simulations or physic…
The Kinematics of Lagrangian Flow Separation in External Aerodynamics
Bjoern F. Klose, Mattia Serra, Gustaaf B. Jacobs
Kinematic aspects of flow separation in external aerodynamics are investigated in the Lagrangian frame. Specifically, the initial motion of upwelling fluid material from the wall i…