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Achievements

Achievement: StarstruckAchievement: 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

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

Elastic-Taylor-Culick

This is a repository that contains the modified log-conform codes. We use it to parameterize the equations using G and \lambda instead of \eta_p and \lambda. An example with elastic Taylor-Culick retractions is also shown • C

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 #8 in comphy-lab/Elastic-Taylor-Culick
  2. 🎉 Merged PR #2 in comphy-lab/Elastic-Taylor-Culick
  3. 🔒 Closed issue #6 in comphy-lab/Elastic-Taylor-Culick
  4. 🗣 Commented on #8 in comphy-lab/Elastic-Taylor-Culick
  5. 🗣 Commented on #2 in comphy-lab/Elastic-Taylor-Culick
📊 GitHub Stats

Unique authored commits on repository default branches (last successful crawl on 8 August 2026 at 04:40 UTC): 12304

I'm an Early 🐤

🌞 Morning                2814 commits        ██████░░░░░░░░░░░░░░░░░░░   22.87 % 
🌆 Daytime                3963 commits        ████████░░░░░░░░░░░░░░░░░   32.21 % 
🌃 Evening                4106 commits        ████████░░░░░░░░░░░░░░░░░   33.37 % 
🌙 Night                  1421 commits        ███░░░░░░░░░░░░░░░░░░░░░░   11.55 %

📅 I'm Most Productive on Saturday

Monday                   1861 commits        ████░░░░░░░░░░░░░░░░░░░░░   15.13 % 
Tuesday                  1793 commits        ████░░░░░░░░░░░░░░░░░░░░░   14.57 % 
Wednesday                1590 commits        ███░░░░░░░░░░░░░░░░░░░░░░   12.92 % 
Thursday                 1586 commits        ███░░░░░░░░░░░░░░░░░░░░░░   12.89 % 
Friday                   1676 commits        ███░░░░░░░░░░░░░░░░░░░░░░   13.62 % 
Saturday                 1954 commits        ████░░░░░░░░░░░░░░░░░░░░░   15.88 % 
Sunday                   1844 commits        ████░░░░░░░░░░░░░░░░░░░░░   14.99 %

GitHub's contribution calendar counts events, not commits: public/default-branch commits, private or restricted activity, issues, pull requests, reviews, and repository creation. The custom total above counts globally deduplicated, primary-authored Git objects reachable from default branches visible to the action token at its last successful crawl; inaccessible repositories, topic-branch-only commits, unlinked authors, and rewritten history are excluded.

💻 Coding Activity

This Week I Spent My Time On

💬 Programming Languages
Markdown                 27 hrs 55 mins      ████████████░░░░░░░░░░░░░   49.19 % 
JSON                     12 hrs 31 mins      ██████░░░░░░░░░░░░░░░░░░░   22.07 % 
C                        5 hrs 10 mins       ██░░░░░░░░░░░░░░░░░░░░░░░   09.10 % 
Bash                     2 hrs 26 mins       █░░░░░░░░░░░░░░░░░░░░░░░░   04.28 % 
Python                   2 hrs 10 mins       █░░░░░░░░░░░░░░░░░░░░░░░░   03.84 % 

🔥 Editors
VS Code                  38 hrs 34 mins      ████████████░░░░░░░░░░░░░   49.32 % 
Claude Code              22 hrs 10 mins      ███████░░░░░░░░░░░░░░░░░░   28.34 % 
Ghostty                  8 hrs 22 mins       ███░░░░░░░░░░░░░░░░░░░░░░   10.71 % 
Slack                    5 hrs 4 mins        ██░░░░░░░░░░░░░░░░░░░░░░░   06.48 % 
Codex CLI                1 hr 24 mins        ░░░░░░░░░░░░░░░░░░░░░░░░░   01.81 % 

🐱‍💻 Projects
cowork-os                38 hrs 26 mins      ████████████░░░░░░░░░░░░░   49.14 % 
comphy-mac               8 hrs 6 mins        ███░░░░░░░░░░░░░░░░░░░░░░   10.37 % 
MATLAB-postProcessing    4 hrs 17 mins       █░░░░░░░░░░░░░░░░░░░░░░░░   05.50 % 
liu2016-figure8.c        2 hrs 17 mins       █░░░░░░░░░░░░░░░░░░░░░░░░   02.93 % 
benchmark.tex            2 hrs 10 mins       █░░░░░░░░░░░░░░░░░░░░░░░░   02.78 % 

💻 Operating System
Mac                      78 hrs 12 mins      █████████████████████████   100.00 %

📈 Contribution Graph

Vatsal's GitHub stats
🏆 GitHub Achievements

I rolled before Covid-19: Survivor of the Great TP Shortage I joined GitHub 5 years ago. I am a polite coder. I contributed to My Badges! I've starred 94 my own repositories. 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 closed an issue that was open for a year I joined GitHub 10 years ago. I have five or more public keys One of my commit sha starts with "a". One of my commit sha starts with "ab". One of my commit sha starts with "abc". I committed on the day when the crew of the USCSS Nostromo made their fateful landing and discovered the Xenomorph on LV-426! I did a little housekeeping! 🧹 I made cosmetic commit. 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 did 2 sequential fixes. I did 3 sequential fixes. I did 4 sequential fixes. I did 6 sequential fixes. I committed on Friday the 13th, One… By One… When I delete code, I delete a lot. When I delete code, I delete a lot. May the 4th be with you! Happy March 14th! I committed on a Pi Day! Happy Programmers Day! I committed on a 256 Day of Year! I committed on Isaac Asimov's birthday / National Science Fiction Day! I committed on the Halloween! Boo! I committed on St. Patrick's Day! I collected 100 stars. I am a sleepy coder. I commit in the morning. I commit in the evening. I commit at midnight.

😂 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 8 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