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MMAE Seminar - Dr. Detlef Lohse - Segregation in Multicomponent Droplet Evaporation

Event Date 

April 24, 2019 - 3:30pm to 4:30pm

Location 

John T. Rettaliata Engineering Center
Room 104
10 West 32nd Street
Chicago, IL 60616

Description 

Armour College of Engineering's Mechanical, Materials, and Aerospace Engineering Department will welcome Dr. Detlef Lohse, Chair Professor at the University of Twente, the Netherlands, on Wednesday, April 24th, to present his lecture, Segregation in Multicomponent Droplet Evaporation.

Abstract

While the evaporation of a single component droplet meanwhile is pretty well understood, the richness of phenomena in multicomponent droplet evaporation keeps surprising us. In this talk we will show and explain several of such phenomena, namely evaporation-triggered segregation thanks to either weak solutal Marangoni flow or thanks to gravitational effects, and the evaporation of ternary liquid droplet, which can lead to spontaneous nucleation of droplets consisting of a new phase. We will also show how this new phase can be utilized to self-lubricate the droplet in order to suppress the coffee stain effects. The research work shown in this talks combines experiments, numerical simulations, and theory.

References

  1. Yaxing Li, Christian Diddens, Pengyu Lv, Herman Wijshoff, Michel Versluis, and Detlef Lohse (2019) Gravitational effect in evaporating binary microdroplets, Phys. Rev. Lett., 122, 114501.
  2. Yaxing Li, Pengyu Lv, Christian Diddens, Huanshu Tan, Herman Wijshoff, Michel Versluis, and Detlef Lohse (2018) Evaporation-triggered segregation of sessile binary droplets, Phys. Rev. Lett., 120, 224501.
  3. Huanshu Tan, Sanghyuk Wooh, Hans-J├╝rgen Butt, Xuehua Zhang, and Detlef Lohse (2019) Porous supraparticle assembly through self-lubricating evaporating colloidal ouzo drops, Nature Communications, 10, 478.
  4. Huanshu Tan, Christian Diddens, Pengyu Lv, J. G. M. Kuerten, Xuehua Zhang, and Detlef Lohse, (2016) Evaporation-triggered microdroplet nucleation and the four life phases of an evap- orating Ouzo drop, Proc. Nat. Acad. Sci., 113, 8642-8647.

Biography

Dr. Detlef Lohse studied physics at the Universities of Kiel & Bonn (Germany), and got his PhD at University of Marburg (1992). He then joined University of Chicago as postdoc. After his habilitation (Marburg, 1997), in 1998 he became Chair at University of Twente in the Netherlands and built up the Physics of Fluids group. Since 2015 he is also Member of the Max Planck Society and of the Max-Planck Institute in G├Âttingen and since 2017 Honorary Professor at Tsinghua University, Bejing.

Lohse's present research interests include turbulence and multiphase flow, micro- and nanofluidics (bubbles, drops, inkjet printing, wetting), and granular & biomedical flow. He does both fundamental and more applied science and combines experimental, theoretical, and numerical methods.

Lohse is Editor of J. Fluid Mech. and Ann. Rev. Fluid Mech. (among others journals) and serves as Member at Large of the Executive Board of DFD. He is Member of the (American) National Academy of Engineering (2017), of the Dutch Academy of Sciences (KNAW, 2005), the German Academy of Sciences (Leopoldina, 2002) and Fellow of APS (2002). He won various scientific prizes, among which the Spinoza Prize (NWO, 2005), the Simon Stevin Meester Prize (STW, 2009), the Physica Prize of the Dutch Physics Society (2011), the AkzoNobel Science Award (2012), two European Research Council Advanced Grants (2010 & 2017), the George K. Batchelor Prize (IUTAM, 2012), the APS Fluid Dynamics Prize (2017), the Balzan Prize (2018), and the Max Planck Medal (2019). In 2010, he got knighted to become "Ridder in de Orde van de Nederlandse Leeuw".

Website: http://pof.tnw.utwente.nl

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