People

Postdoc	Lakshmana Chandrala, Omri Ram
Former Postdoc	David W. Murphy, Pranav R. Joshi
Graduate Student	Xinzhi Xue
Former Graduate Student	Kaushik Sampath, Cheng Li
Undergraduate Student	Anne Hosler, David Morra, Ben Chello, Yvana Ahdab, Kyle Candela
Project Supervisor	Prof. Joseph Katz
Design & Technical Support	Dr. Yury Ronzhes

Background

Oil droplets in the ocean will experience turbulence. Turbulence acts to break up these droplets.

Goals

This project aims to measure the effect of turbulence and oil properties on turbulence dispersion rate, and to investigate the role of dispersants in creating micro-droplets.

Other Pictures

Facility

Spinning grids create isotropic turbulence in the center of the tank. Oil droplets are injected into the sample volume of size 17 x 17 x 70 mm3. High-speed inline digital holographic cinematography is used to visualize these droplets.

Reconstructed holographic images, showing formation of micro threads as a result of dispersant addition.

Publications

Chandrala, L. D., Afshar-Mohajer, N., Nishida, K., Ronzhes, Y., Sidhaye, V. K., Koehler, K., & Katz, J. (2019). A Device for measuring the in-situ response of Human Bronchial Epithelial Cells to airborne environmental agents. Scientific reports, 9(1), 1-12.

Sampath, N. A. Mohajer, L. Chandrala, W. Heo, J. Gilbert, D. Austin, K. Koehler, and J. Katz., (2019). Aerosolization of crude oil‐dispersant slicks due to bubble bursting. Journal of Geophysical Research: Atmospheres, 124(10), 5555-5578.

Li, C., Miller, J., Wang, J., Koley, S. S., & Katz, J. (2017). Size distribution and dispersion of droplets generated by impingement of breaking waves on oil slicks. Journal of Geophysical Research: Oceans, 122(10), 7938-7957.

Murphy, D. W., Xue, X., Sampath, K., & Katz, J. (2016). Crude oil jets in crossflow: effects of dispersant concentration on plume behavior. Journal of Geophysical Research: Oceans, 121(6), 4264-4281.

Murphy, D. W., Li, C., d’Albignac, V., Morra, D., & Katz, J. (2015). Splash behaviour and oily marine aerosol production by raindrops impacting oil slicks. Journal of Fluid Mechanics, 780, 536-577.

Murphy, D., Morra, D., & Katz, J. (2013). Rain Drops and Oil Slicks: Impact of Water Droplets on a Surface Oil Layer. 66th Annual Meeting of the Division of Fluid Dynamics, Bulletin of the American Physical Society, 58.

Katz, J., Murphy, D., & Morra, D. (2013). Large Scale Behavior and Droplet Size Distributions in Crude Oil Jets and Plumes. 66th Annual Meeting of the Division of Fluid Dynamics, Bulletin of the American Physical Society, 58.

Li, C., Holser, A., & Katz, J. (2013). Breakup of an oil slick mixed with dispersants by breaking wave. 66th Annual Meeting of the Division of Fluid Dynamics, Bulletin of the American Physical Society, 58.