The impact of a water droplet in a complex fluid bath: between acoustics, hydrodynamics and physiochemistry
Chemical Engineering Department
A drop impacting a liquid surface produces the famous "PLOC" sound, which is easy to identify, but becomes a "PLIC" if the liquid in the bath changes.
What's the mechanism behind the "Ploc"? So what can we learn about the fluid from the acoustic signature of the impact? Is there a correlation between the characteristics of the acoustic signal and some of the physicochemical properties of complex fluids?
Speaker: Prof. Lazhar Benyahia
Institut des Molécules et Matériaux du Mans
Le Mans Université
Avenue Olivier Messiaen, 72085
LE MANS cedex 9, FRANCE
After an engineer degree from ENSAM (École National Superieure des Arts et Métiers), Dr. Lazhar BENYAHIA obtained his PhD from Grenoble University. At the end of 1995, he joined the University of Le Mans for 3 years as a postdoc, before being recruited in 1998 as an assistant professor and finally becoming a full professor in 2008.
His research activities focus mainly on the physics and physical chemistry of soft matter with a special interest to polymeric systems. I have supervised 8 postdocs and 21 docs. His research focuses mainly on the physics and physical chemistry of soft matter with special consideration of the dynamic of complex systems under deformation at mesoscopic scales.
His work has led to 111 publications, 4 book chapters and 4 patents. These were achieved by leading a number of research programs financed by the French and foreigner governments or industries.
During His academic career, he have held a number of management positions, such as deputy director of IMMM, leadership of PCI group, president of the French Group of Rheology (GFR), etc. He has also set up and managed several graduate programs.