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LAB NEWS

Dr. Agonafer receives NSF CAREER Award

By Abel Solomon on December 3, 2019

Dr. Damena Agonafer received a five-year $500,000 CAREER Award from the National Science Foundation (NSF) to identify different modes of heat transfer during the evaporation process of nonsymmetrical microdroplets that sit atop micropillar structures on a cooling platform. We would like to congratulate our PI, Dr. Agonafer, on this great achievement. On the news

Dr. Damena Agonafer receives ASME Early Career Award

By Abel Solomon on October 10, 2019

The Electronics and Photonics Packaging Division (EPPD) 2019 Early Career Award from the American Society of Mechanical Engineers (ASME) was awarded to our principal investigator Dr. Damena Agonafer. The award, given to professionals within 10 years of last degree received, recognizes a young engineer with significant technical achievements in his or her career in electronic […]

Our latest study titled “Evolution of Microdroplet Morphology Confined on Asymmetric Micropillar Structures” got published on the cover of the journal “Langmuir”

By Abel Solomon on September 21, 2019

The cover of the journal Langmuir, the ACS journal of fundamental interface science, featured our latest work on the droplets of different liquids on micropillar structures of different shapes: triangles, squares, and circles. The paper titled “Evolution of Microdroplet Morphology Confined on Asymmetric Micropillar Structures” presents the study on the retention of microdroplets with high […]

“Experimental Thermal and Fluid Science” featured our latest study

By Abel Solomon on August 1, 2019

The paper titled Experimental investigation of evaporation from asymmetric microdroplets confined on heated micropillar structures got published on Experimental Thermal and Fluid Science. This paper examines the evaporation rate and heat transfer performance of continuously–fed water microdroplets confined on heated silicon micropillar structures with circular, square, and triangular cross-sections. Our experimental results show that increasing levels […]

“Journal of Colloid and Interface Science” featured our latest study

By Abel Solomon on August 1, 2019

The paper titled Investigation of the confinement effect on the evaporation behavior of a droplet pinned on a micropillar structure, which focused on the study of the diffusion confinement effect imposed by the bottom substrate and the sidewall of the micropillar through numerical simulations and experimental investigations got published on Journal of Colloid and Interface […]

Our Latest Paper “Investigation of the evaporation heat transfer mechanism of a non-axisymmetric droplet confined on a heated micropillar structure” Got Published on International Journal of Heat and Mass Transfer

By Abel Solomon on June 28, 2019

In scaling computer performance, closely integrating heterogeneous components in a single system-inpackage assembly provides faster signal communication and a tighter footprint – but also generates more heat: state-of-the art microelectronic devices can produce more than 1 kW square-cm. The next generation high-powered electronics will need two-phase liquid cooling, such as droplet evaporation, which utilizes the […]

NSF Awarded us with a Standard Grant for Engineering Diversity Activities

By Abel Solomon on January 1, 2019

The NSF grant will go to the nanoscale energy and interfacial transport research based mentoring program to increase underrepresented minority students in STEM. This program explores how to motivate students from the Saint Louis area, and in particular underrepresented minorities, to pursue careers in science, technology, engineering and mathematics (STEM) fields. A series of integrated […]

Featured Journals

1. Evolution of Microdroplet Morphology Confined on Asymmetric Micropillar Structures

2019 / Journal Articles

The design of topological features to control the spreading of liquid has been widely investigate...

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2. Experimental investigation of evaporation from asymmetric microdroplets confined on heated micropillar structures

2019 / Journal Articles

Droplet evaporation is ubiquitous both in everyday life and numerous engineering, biomedical, and...

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3. Investigation of the confinement effect on the evaporation behavior of a droplet pinned on a micropillar structure

2019 / Journal Articles

Evaporation of sessile droplet suffers from reduced evaporation rate due to the confinement of va...

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4. Investigation of the evaporation heat transfer mechanism of a non-axisymmetric droplet confined on a heated micropillar structure

2019 / Journal Articles

In scaling computer performance, closely integrating heterogeneous components in a single system-...

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5. Porous micropillar structures

2017 / Journal Articles

The ability to manipulate fluid interfaces, e.g., to retain liquid behind or within porous struct...

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6. Extreme Two-Phase Cooling

2017 / Journal Articles

This paper reports the first integration of laser-etched polycrystalline diamond microchannels wi...

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7. Thermal Modeling of Extreme Heat Flux Microchannel Coolers

2016 / Journal Articles

Thermal Modeling of Extreme Heat Flux Microchannel Coolers for GaN- on-SiC Semiconductor Devices

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8. Burst Behavior at a Capillary Tip

2015 / Journal Articles

Burst behavior at a capillary tip: effect of low and high surface tension

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9. Fundamental Cooling Limits for High Power Density HEMT

2015 / Journal Articles

Fundamental Cooling Limits for High Power Density GaN Electronics

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10. Study of Ionic Transport Through Metalized Nanoporous Membrane

2014 / Journal Articles

Study of ionic transport through metalized nanoporous membranes functionalized with self-assemble...

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11. Study of Insulating Properties of Alkanethiol

2013 / Journal Articles

Study of Insulating Properties of Alkanethiol Self Assembled Monolayers Formed Under Prolonged In...

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12. Three-Dimensional CFD Model of Pressure Drop In μTAS Devices

2011 / Journal Articles

Three Dimensional CFD Model Of Pressure Drop In μTAS Devices In a Microchannel

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13. Influence of Boundary Conditions on Sub-Millimeter Combustion

2009 / Journal Articles

Influence of Boundary Conditions on Sub-Millimeter Combustion

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14. Low Reynolds Number Flow Across an Array of Microposts

2009 / Journal Articles

Low Reynolds number flow across an array of cylindrical microposts in a microchannel and figure-o...

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Upcoming Events

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Past Events

  • June 9 – 26, 2019
  • Jubel Hall Room #231
  • August 27 – 30, 2018
  • Hilton San Francisco Financial District, San Francisco, CA

(Copied from ASME. Link is below.) 2018 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems (InterPACK) InterPACK is the premier international conference for exchange of state-of-the-art knowledge in research, development, manufacturing, and applications of electronics packaging and heterogeneous integration. It is the flagship conference of the ASME Electronic and […]

  • June 19 – 22, 2018
  • Green Hall 3003, Washington University in St Louis

College Preparation Program: “Beat the Heat” – Wettability and Two-Phase Heat Transfer Dr. Damena Agonafer June 19-22, 2018 Green Hall 3003, Washington University in St. Louis This event was an exciting opportunity for seniors in high school to experience time in a university lab, where they learned the basic principles of heat transfer and how […]