272 citations · 565 across the 22 of their papers we have counts for
22 papers
Interactions Between Internal Solitary Waves and Floating Canopies
Jen-Ping Chu, Mitul Luhar, Patrick Lynett
Interactions between internal solitary waves and floating canopies of varying length and porosity are examined via laboratory experiments and complementary simulations for a miscib…
Internal Solitary Wave Generation Using A Jet-Array Wavemaker
Jen-Ping Chu, Mitul Luhar, Partrick Lynett
This paper evaluates the experimental generation of internal solitary waves (ISWs) in a miscible two-layer system with a free surface using a jet-array wavemaker (JAW). Unlike trad…
Capturing multiscale interactions in fluid flow via Lagrangian coherent structures and modal analysis
Morgan R. Jones, Charles Klewicki, Oliver Khan +2
We consider the relationship between Eulerian modal decompositions and Lagrangian coherent structures (LCSs). The model sensitivity framework developed by Kaszás and Haller (2020)…
Connections between propulsive efficiency and wake structure via modal decomposition
Morgan R. Jones, Mitul Luhar, Eva Kanso
We present experiments on oscillating hydrofoils undergoing combined heaving and pitching motions, paying particular attention to connections between propulsive efficiency and cohe…
Turbulent flows over porous lattices: alteration of near-wall turbulence and pore-flow amplitude modulation
Seyed Morteza Habibi Khorasani, Mitul Luhar, Shervin Bagheri
Turbulent flows over porous lattices consisting of rectangular cuboid pores are investigated using scale-resolving direct numerical simulations. Beyond a certain threshold which is…
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…
Simulation-Based Analysis of COVID-19 Spread Through Classroom Transmission on a University Campus
Arvin Hekmati, Mitul Luhar, Bhaskar Krishnamachari +1
Airborne transmission is now believed to be the primary way that COVID-19 spreads. We study the airborne transmission risk associated with holding in-person classes on university c…
The Effect of Super-spreader Events in Epidemics
Harisankar Ramaswamy, Assad A Oberai, Mitul Luhar +1
The spread of infectious epidemics is often accelerated by super-spreader events. Understanding their effect is important, particularly in the context of standard epidemiological m…
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…
Locomotion and Control of a Friction-Driven Tripedal Robot
Mark Hermes, Taylor McLaughlin, Mitul Luhar +1
This letter considers control of a radially symmetric tripedal friction-driven robot. The robot features 3 servo motors mounted on a 3-D printed chassis 7 cm from the center of mas…
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…
Comment on "The wave-driven current in coastal canopies" by M. Abdolahpour et al
Mitul Luhar
Laboratory and field measurements made over the past decade have shown the presence of a strong wave-driven mean current in submerged vegetation canopies. Luhar et al. (2010) sugge…
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…
Resolvent Analysis for Turbulent Channel Flow with Riblets
Andrew Chavarin, Mitul Luhar
This paper extends the resolvent formalism for wall turbulence proposed by McKeon and Sharma(2010) to account for the effect of streamwise-constant riblets. Under the resolvent for…
Mean turbulence statistics in boundary layers over high-porosity foams
Christoph Efstathiou, Mitul Luhar
This paper reports turbulent boundary layer measurements made over open-cell reticulated foams with varying pore size and thickness, but constant porosity (). The fo…
Bistability in the rotational motion of rigid and flexible flyers
Yangyang Huang, Leif Ristroph, Mitul Luhar +1
We explore the rotational stability of hovering flight. Our model is motivated by an experimental pyramid-shaped object and a computational lambda-shaped analog hovering passively…
On the design of optimal compliant walls for turbulence control
M. Luhar, A. S. Sharma, B. J. McKeon
This paper employs the theoretical framework developed by Luhar et al. (J. Fluid Mech., 768, 415-441) to consider the design of compliant walls for turbulent skin friction reductio…
Wave-induced dynamics of flexible blades
M. Luhar, H. M. Nepf
We present an experimental and numerical study that describes the motion of flexible blades, scaled to be dynamically similar to natural aquatic vegetation, forced by wave-induced…
A framework for studying the effect of compliant surfaces on wall turbulence
M. Luhar, A. S. Sharma, B. J. McKeon
This paper extends the resolvent formulation proposed by McKeon & Sharma (2010) to consider turbulence-compliant wall interactions. Under this formulation, the turbulent velocity f…
Deconstructing wall turbulence -visualization of resolvent modes
Daniel Barella, Sarah Churng, Conrad Egan +6
This article accompanies a fluid dynamics video entered into the Gallery of Fluid Motion of the 66th Annual Meeting of the APS Division of Fluid Dynamics.