7 papers · 1 filter
Regime identification for stratified wakes from limited measurements: a library-based sparse regression formulation
Vamsi Krishna Chinta, Chan-Ye Ohh, Geoffrey Spedding +1
Bluff body wakes in stratified fluids are known to exhibit a rich range of dynamic behavior that can be categorized into different regimes based on Reynolds number () and Froud…
Model-based multi-sensor fusion for reconstructing wall-bounded turbulence
Mengying Wang, C. Vamsi Krishna, Mitul Luhar +1
Wall-bounded turbulent flows can be challenging to measure within experiments due to the breadth of spatial and temporal scales inherent in such flows. Instrumentation capable of o…
Resolvent-based predictions for turbulent flow over anisotropic permeable substrates
Andrew Chavarin, Garazi Gomez-de-Segura, Ricardo Garcia-Mayoral +1
Recent simulations indicate that streamwise-preferential porous materials have the potential to reduce drag in wall-bounded turbulent flows(Gomez-de-Segura & Garcia-Mayoral 2019).…
Turbulent boundary layers over streamwise-preferential porous materials
Christoph Efstathiou, Mitul Luhar
Recent numerical simulations indicate that streamwise-preferential anisotropic porous materials have the potential to reduce skin friction in turbulent flows through a similar mech…
Reconstructing the time evolution of wall-bounded turbulent flows from non-time resolved PIV measurements
C. Vamsi Krishna, Mengying Wang, Maziar S. Hemati +1
Particle Image Velocimetry (PIV) systems are often limited in their ability to fully resolve the spatiotemporal fluctuations inherent in turbulent flows due to hardware constraints…
Resolvent-based design and experimental testing of porous materials for passive turbulence control
Andrew Chavarin, Christoph Efstathiou, Shilpa Vijay +1
An extended version of the resolvent formulation is used to evaluate the use of anisotropic porous materials as passive flow control devices for turbulent channel flow. The effect…