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Computational modeling of multiphase turbulence :

12 janvier 2018

Computational modeling of multiphase turbulence : Chaos, interfaces, and particles

Conf’luence Olivier Desjardins
Sibley School of Mechanical and Aerospace Engineering - Cornell University

Mercredi 17 janvier à 10 h 30 Amphithéâtre Nougaro

Multiphase turbulent flows are ubiquitous in nature as well as in engineering, where they present a major hurdle in process intensification and innovation. With the advent of more powerful computing resources, predicting such flows from first principles is becoming viable. However, as with single-phase flows, numerical methods need to be carefully designed to guarantee convergence under grid refinement, primary conservation of key quantities such as mass and momentum, and excellent parallel performance. In this talk, we will explore the computational modeling of two categories of multiphase turbulent flows. First, we will discuss sprays and their formation, of great importance to combustion processes. In particular, we will explore opportunities for controlling sprays. Second, we will investigate dense particle-laden flows, critical to many chemical transformation processes. Specifically, we will examine the regimes of multiphase turbulence as particle mass loading increases.

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Bio :

Professor Desjardins joined the Cornell MAE faculty in 2011 after 3 years at CU Boulder. Prior to that, he received two Masters in 2004, one in Aeronautics and Astronautics from Supaero, Toulouse, France, and one in Mechanical Engineering from Stanford University. He obtained his Ph.D. in Mechanical Engineering from Stanford in 2008. He received an NSF CAREER award in 2014 and the Junior Award from the International Conference on Multiphase Flow in 2016. Prof. Desjardins’ research focuses on the development and application of novel numerical methods for the study of multiphase turbulent flows, with specific focus on atomizing liquid-gas flows and strongly coupled particle-laden flows.