This video features the lecture of Prof. Stéphane Zaleski discussing challenges in the modeling of multiphase flow from large to small scales on October 28, 2019. The MIT CEE Distinguished Seminar Series, launched in 2015, is supported by the CEE Department and the Chiang C. Mei Funds and was founded in honor of Prof. Chiang C. Mei to provide a vibrant forum for highly distinguished speakers to share their research with the CEE, MIT, and local community. More on the series can be found here: dss.mit.edu