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Achievements

Achievement: Pair Extraordinairex3Achievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault Contributor

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@comphy-lab

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VatsalSy/README.md

Vatsal Sanjay

Soft Matter Physicist | Computational Fluid Dynamics | Assistant Professor

Vatsal      CoMPhy Lab



Google Scholar ResearchGate ORCID LinkedIn X (Twitter) BlueSky Email Website

👋 About Me

I am a soft matter physicist at Durham University, where I lead the Computational Multiphase Physics (CoMPhy) Lab.

Our research focuses on non-Newtonian free-surface flows and soft matter singularities—fluid phenomena (like drops, bubbles, jets, and sheets) where interfaces undergo rapid, dramatic changes. Using high-fidelity simulations, theoretical modeling, and collaborative experiments, we investigate events such as:

  • 💧 Droplet impacts and coalescence
  • 🫧 Bubble bursting dynamics
  • 🌊 Jet formation and breakup
  • 📄 Liquid sheet fragmentation

We use complex (non-Newtonian) fluids as model systems to explore how microstructural stresses influence continuum-scale dynamics, connecting fundamental insights to real-world applications across industry and nature.

🔬 Research Interests

Multiphase Flows Non-Newtonian Fluids Soft Matter Computational Physics Fluid Dynamics

💻 Technical Skills

Languages & Tools

C Python Fortran LaTeX Basilisk Git

Specializations

CFD Direct Numerical Simulations High Performance Computing Scientific Visualization

🚀 Featured Projects

Asymmetries-in-coalescence

Asymmetries in coalescence: size asymmetry. Still axially symmetric. • Shell

CoMPhy Lab Codes

Open-source computational tools for multiphase flow simulations and analysis.

🤝 Let's Collaborate!

We are committed to open science and welcome interdisciplinary collaborations. If you're interested in:

  • 🔬 Collaborative research projects
  • 👨‍🎓 PhD/Postdoc opportunities
  • 💡 Discussing fluid physics
  • 🛠️ Using our computational tools

Contact me - Nothing is more exhilarating than a healthy scientific discussion!

⚡ Recent Activity

  1. 🎉 Merged PR #2 in comphy-lab/Bursting-Bubble
  2. 💪 Opened PR #2 in comphy-lab/Bursting-Bubble
  3. 🔒 Closed issue #16 in comphy-lab/basilisk-C
  4. 🗣 Commented on #16 in comphy-lab/basilisk-C
  5. 🗣 Commented on #16 in comphy-lab/basilisk-C
📊 GitHub Stats

My Total Overall Commits: 5056

I'm an Early 🐤

🌞 Morning                1112 commits        █████░░░░░░░░░░░░░░░░░░░░   21.99 % 
🌆 Daytime                1664 commits        ████████░░░░░░░░░░░░░░░░░   32.91 % 
🌃 Evening                1684 commits        ████████░░░░░░░░░░░░░░░░░   33.31 % 
🌙 Night                  596 commits         ███░░░░░░░░░░░░░░░░░░░░░░   11.79 %

📅 I'm Most Productive on Saturday

Monday                   732 commits         ████░░░░░░░░░░░░░░░░░░░░░   14.48 % 
Tuesday                  817 commits         ████░░░░░░░░░░░░░░░░░░░░░   16.16 % 
Wednesday                573 commits         ███░░░░░░░░░░░░░░░░░░░░░░   11.33 % 
Thursday                 503 commits         ██░░░░░░░░░░░░░░░░░░░░░░░   09.95 % 
Friday                   605 commits         ███░░░░░░░░░░░░░░░░░░░░░░   11.97 % 
Saturday                 919 commits         █████░░░░░░░░░░░░░░░░░░░░   18.18 % 
Sunday                   907 commits         ████░░░░░░░░░░░░░░░░░░░░░   17.94 %
💻 Coding Activity

This Week I Spent My Time On

💬 Programming Languages
C                        1 hr 54 mins        ███████████░░░░░░░░░░░░░░   43.66 % 
Python                   1 hr 2 mins         ██████░░░░░░░░░░░░░░░░░░░   23.97 % 
Markdown                 28 mins             ███░░░░░░░░░░░░░░░░░░░░░░   10.73 % 
Shell                    19 mins             ██░░░░░░░░░░░░░░░░░░░░░░░   07.28 % 
conf                     12 mins             █░░░░░░░░░░░░░░░░░░░░░░░░   04.94 % 

🔥 Editors
Ghostty                  19 hrs 37 mins      ████████████░░░░░░░░░░░░░   48.09 % 
Zen                      8 hrs 55 mins       █████░░░░░░░░░░░░░░░░░░░░   21.88 % 
Keynote                  5 hrs               ███░░░░░░░░░░░░░░░░░░░░░░   12.28 % 
Claude Code              2 hrs 48 mins       ██░░░░░░░░░░░░░░░░░░░░░░░   06.88 % 
Obsidian                 2 hrs 7 mins        █░░░░░░░░░░░░░░░░░░░░░░░░   05.23 % 

🐱‍💻 Projects
coalescence-with-surfacta11 hrs 51 mins      ███████░░░░░░░░░░░░░░░░░░   29.09 % 
jarvis                   5 hrs 59 mins       ████░░░░░░░░░░░░░░░░░░░░░   14.68 % 
Drop-Impact              4 hrs 38 mins       ███░░░░░░░░░░░░░░░░░░░░░░   11.37 % 
basilisk-C               3 hrs 22 mins       ██░░░░░░░░░░░░░░░░░░░░░░░   08.29 % 
2026-01-12-Asymmetries-in2 hrs 48 mins       ██░░░░░░░░░░░░░░░░░░░░░░░   06.89 % 

💻 Operating System
Mac                      40 hrs 34 mins      █████████████████████████   99.49 % 
Linux                    12 mins             ░░░░░░░░░░░░░░░░░░░░░░░░░   00.51 %

📈 Contribution Graph

Vatsal's GitHub stats
🏆 GitHub Achievements

One of my commit sha starts with "a". One of my commit sha starts with "ab". I did a little housekeeping! 🧹 I rolled before Covid-19: Survivor of the Great TP Shortage I committed on the day Doctor Emmett Brown invented the flux capacitor! I made an epic commit with a message over 500 chars. My favorite word is "add". I joined GitHub 5 years ago. When I delete code, I delete a lot. When I delete code, I delete a lot. I am a polite coder. I collected 100 stars. I am a sleepy coder. I commit in the morning. I commit in the evening. I commit at midnight. I committed on the Halloween! Boo! I contributed to My Badges! I've starred 49 my own repositories. I did 2 sequential fixes. I merged a PR with failing checks I have participated in pull requests with 5 or more people I found the answer to the ultimate question of life, the universe, and everything! I did 3 sequential fixes. I did 4 sequential fixes. I did 6 sequential fixes. I committed on Friday the 13th, One… By One… I made cosmetic commit. Happy Programmers Day! I committed on a 256 Day of Year! I closed an issue that was open for a year May the 4th be with you! Happy March 14th! I committed on a Pi Day! I have four public keys I committed on St. Patrick's Day! I committed on Isaac Asimov's birthday / National Science Fiction Day!

😂 Random Dev Joke

Jokes Card

Pinned Loading

  1. Vatsal_CV Vatsal_CV Public

    This is the LaTeX source code of my CV

    TeX 11 2

  2. Bursting-Bubble-In-a-Viscoplastic-Medium Bursting-Bubble-In-a-Viscoplastic-Medium Public

    This repository contains the codes used for simulating the cases discussed in the manuscript: Bursting bubble in a viscoplastic medium

    C 6 3

  3. Impact-forces-of-water-drops-falling-on-superhydrophobic-surfaces Impact-forces-of-water-drops-falling-on-superhydrophobic-surfaces Public

    This repository contains the codes used for simulating the cases discussed in the manuscript: Impact forces of water drops on superhydrophobic surfaces. The results presented here are currently und…

    C 11 1

  4. Taylor-Culick-retractions Taylor-Culick-retractions Public

    This repository is under construction and will contain all the codes for reproducibility of the results in the paper: Taylor-Culick retraction at a liquid-air interface by Sanjay et al. (2021)

    C 4 1

  5. Vatsal-Thesis Vatsal-Thesis Public

    This is the LaTeX source code for my PhD thesis available here: https://doi.org/10.3990/1.9789036554077

    TeX 2

  6. comphy-lab/Drop-Impact comphy-lab/Drop-Impact Public

    Shell 1