About Me

I am a PhD student in the Department of Mechanical and Materials Engineering at the University of Cincinnati working with the UC Lab for Interfacial Dynamics under the supervision of Dr. Kishan Bellur.

My research primarily focuses on understanding and modeling liquid-vapor phase change and related phenomena. Recently, I have worked on developing coefficient-free algorithms for modeling evaporation in Hydrogen and Methane, as well as investigating phase change-induced flow patterns and surface instabilities observed in ISS experiments. My current research attempts to understand the role of phase change in the stability and dynamics of moving contact lines.

During my graduate career, I have worked as a Research Assistant at the P&G Digital Accelerator at UC studying methods to optimize algorithms for bounding box calculations. I have also taught two undergraduate courses as the instructor of record, teaching 300 first-year students in the College of Engineering and Applied Science. Prior to my PhD, I earned my Master of Science in Aerospace Engineering and my Bachelor of Science in Mechanical Engineering Technology from the University of Cincinnati, which included five semesters of co-op experiences, exposing me to a variety of industry positions.

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Recent News

• Mar 2025 Presented at the 2025 ASTFE Thermal and Fluids Engineering Conference.
• Aug 2024 Presented at the 2024 NASA Thermal and Fluids Analysis Workshop.

Older News

• Aug 2024 Started my PhD in the Dept of Mechanical Engineering.
• May 2024 Defended my Master's thesis!
• Apr 2024 Presented at the 2024 Midwest Universities Fluid Mechanics Retreat.
• Nov 2023 Published my first paper!
• Nov 2023 Presented at the 2023 American Physical Society Division of Fluid Dynamics conference.
• Aug 2023 Started teaching ENED 1100 and 1120 Foundations of Engineering Design Thinking as the instructor of record.
• Apr 2023 Presented at the 2023 Midwest Universities Fluid Mechanics Retreat.
• Jan 2023 Started a Graduate Assistantship with the Dept of Engineering and Computing Education.
• Nov 2022 Presented a poster at the 2023 American Physical Society Division of Fluid Dynamics conference.
• Oct 2022 Started a Research Assistantship at the P&G Digital Accelerator.
• Aug 2022 Started my Master's in the Dept of Aerospace Engineering.

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Publications

*shows equal contribution authors.

2. Computational Modeling of Evaporation without Tuning Coefficients

Ayaaz Yasin and Kishan Bellur

Applied Thermal Engineering (Under Review).

DOI

1. An investigation of phase change induced Marangoni-dominated flow patterns using the Constrained Vapor Bubble Data from ISS experiments

Unmeelan Chakrabarti*, Ayaaz Yasin*, Kishan Bellur, and Jeffrey Allen

Frontiers in Space Technologies - Microgravity. 2023.

PDF • DOI