Sabrina Shlain studies the two-phase particle-laden turbulent flow in a 2D rocket engine. The main questions relate to the turbulence increase/decrease due to the inertial particles. The important parameter in this flow is the geometry of a rocket engine that adds specific features of a) acceleration of the flow into the nozzle, b) impact and restitution of inertial particles at high velocities and moving at large angles in respect to the streamlines of the flow.
Ron Shnapp has prepared the poster for the Geophysical Fluid Dynamics (GFD) days at Sde Boker. We wish him to have a good time and a lot of fresh ideas.
We performed numerical simulations and experiments in a wind tunnel with flying moths to study the dispersion of scalar plumes and moth navigation to a female.
Recently Yiftach Golov joined our team and added collaboration with the group of Shlomo Margel (Bar Ilan) to add nano-materials research to the question of olfactory sensing and navigation of moths in turbulent environments. Yiftach also works on the moth tracking in 3D in Volcani Center wind tunnel w/o turbulence and various source competitions.
We also have Noam Benelli helping us to develop a numerical model of various navigation strategies using a unified Python platform for repeatable and fast simulations.
Our group collaborates with Dr. Alexander Golberg group from the Porter School of Environmental Studies on the marine biorefinery idea: https://m.tau.ac.il/~agolberg/MBR.html
Hadar Traugott studies hydrodynamic effects (pressure, hydromechanical shear stresses) on the macroalgae growth rates and chemical content.
Meiron Zollmann focuses on the nutrients uptake and growth rates in the laboratory and natural offshore environments
Oz Habiby has been working on the pulsed light concept in our lab, growing algae in a hypothetical light/dark cycle using LED sun simulator.
Fluid flow wakes are the hydrodynamic signatures left by a moving body or carried by a fluid passing a body at some relative velocity. In dictionaries it is defined as “a trail of disturbed water or air left by the passage of a ship or aircraft”. Of course there are many other meanings of this word, but we focus here on only the fluid flows. More specifically our lab deals with turbulent wakes.
A stratified wake of a hydrofoil accelerating from rest
Vortex wake of a swimming knifefish
Wake behind a flapping free flying bird in a wind tunnel
If you want to get more details about these results, please read our papers here
Turbulent wakes of roughness elements in an urban canopy flow measured in Lagrangian framework in the environmental scale wind tunnel
Demitry Aronovsky is our lab engineer from Jan. 1, 2019. Demitry brings his vast experience from successful positions he took at industry. https://www.linkedin.com/in/demitry-aronovsky-10914957/