Kat Phillips

🎓 Calling UK University Maths Departments - Registration now open for PhD Your Way 2025!

22 Oct 2025 | 🕑 14:00–16:30 BST | Online
Talks, Live Q&A, virtual uni fair. Breaking down the knowledge barrier to entry for UK maths PhDs.

Register your institution by 30 Sept 👉 forms.gle/F47w6EVNmFKt...

Modelling two-dimensional droplet rebound off deep fluid baths | Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences For a droplet to rebound rather than coalesce with a liquid bath, a layer of gas must persist throughout the impact. This gas, typically an air layer, acts as a lubricant to the system and permits a p...

You can find our paper (open access) at the link below, and all code is open-source across all methodologies are linked within! royalsocietypublishing.org/doi/10.1098/... 4/4

Furthermore, the speed of this new model permitted exploration into repeated bounces wihtout further loss of resolution - supporting long scale investigation into Faraday pilot wave dynamics, coming full circle from my initial thesis formulation report 5 years ago! 3/4

We introduce new analytical and computational modelling approaches for capturing the dynamics of a liquid drop and pool impact which include a fully coupled reduced dynamic model for the entraped gas region between droplet and bath, and compare to dedicated direct numerical simulation. 2/4

✨💧 New Publication Alert 💧✨
My paper alongside Radu Cimpeanu and Paul Milewski is finally available on Proceedings of the Royal Society A !!
The paper titled "Modelling two-dimensional droplet rebound off deep fluid baths" captures the dynamics of a droplet rebound on a deep liquid bath🧵1/4

text: Kat Does Maths Marathon. When? 9am-9pm BST, 21 May 2025. What? I'll bee attempting a 12 hour maths exam-marathon, going from 11+ up to my PhD viva! Why? To celebrate 4 yeears since I started streaming, I'm fundraising for the British Heart Foundation! All subs/donos contribute, and there'll be a tiltify link on the day! How? On twitch.tv/katdoesmaths

I can't believe it's been 4 years since I started talking maths on twitch. I'm celebrating with possibly the most challenging streeam I've ever designed - a 12 hour maths exam! Join me on the day as I raise money for the british heart foundation!
twitch.tv/katdoesmaths

A young Kat stands next to a plaquard that has "Ospreys, Stadiwm Katie Phillips Stadium" on it. the plaquard is part of the branding attached to the wall of the Stadium. Kat has long brown hair and glasses, and is leaning on the wall with her arms crossed. She's wearing a leather jacket and smiling down at the camera.

Oh yeah, photo context - the team at the stadium let me keep one of the rebranding panels, and it’s still up at Mams house! (I never got a programme from matchday though, so if anyone has one knocking about I would be forever grateful!) However if you want to see a vintage version from 2015... 🧵5/5

Ten years ago I was a confused kid in the middle of her A levels who’d just lost her father to cancer, and didn’t know what she was going to do with her life. Now I couldn’t be more proud of who I’ve become. I’m a mathematician, science communicator, and still an avid rugby fan.

It was pure chance - they randomly chose one fan who’d been supporting since the beginning to win the honour, so my name went everywhere (including the wiki page, much to someone's attempt to keep kicking me off there!!)

Ten years ago today, the ospreys celebrated their ten year anniversary by renaming the then liberty stadium the “Katie Phillips Stadium”. I still find it completely surreal that for a single match all the commentators were saying MY name, and all the branding everywhere in the stadium got replaced.

A selfie of Kat sat infront of a plaquard that has the ospreys logo and the text "Ospreys, Stadiwm Katie Phillips Stadium" written on it. Kat is smiling at the camera with her head resting slightly in her open palm. She has split orange and purple medium length hair which is pinned back, and is wearing a plain black tshirt and has round golden glasses.

A large part ofmy love of rugby is due to the weekly rhythm in our house. Saturdays meant doing the weekly shop, wolfing down a swansea pie, and then heading off to sit in the cold for two hours beside my Mam and Dad, and later Mam and Bampi, as we cheered on @ospreysofficial.bsky.social. 🧵1/5

A purple noticeboard with a maths background and techy looking font advertising stream schedules on twitch.tv/katdoesmaths Tuesday 14:00 BST, Pomodoro co-working Friday 09:00 BST, Pomodoro co-working 21 May 2025, Streamaversary charity event

Hallo! I'm not very good at using this platform, but I am quite good at sometimes remembering to tell people where they can find me. I'll be live over on twitch doing some co-working study streams this week, and I'll be doing some maths and fundraising May 21st (more to follow). Come say hi!

Last time I played a game with Sam I helped try to unionise a bunch of bakery goblins. He is a fantastic GM and I can't recommend this highly enough!!

I am so excited for this evening! Come along and share the joy 🏳️‍🌈🏴󠁧󠁢󠁷󠁬󠁳󠁿

Two rectangular hard enamel pins. Each has the trans pride chevron from the progress pride flag on the left side. The rest of the design is either the gay man pride stripes (outlined in silver metal) or the lesbian pride stripes (outlined in rose gold metal)

Very excited to share these new pins! I couldn't find my favourite version of the transbian flag as a pin already, so I decided to make them myself. Please share these around so that other people can find and enjoy them too! canopyrobin.etsy.com/uk/listing/1...

Do grey squirrels have red faces/backs for the same reason that some non-ginger people get ginger beards?

Do they release a cut of The Traitors where they don't include the confessionals, so you can play along? Because that would be so much fun

I've had a very good day. I hope y'all have also had a good day, and if you haven't, I hope tomorrow is better 💜

A schedule of streams Tuesday 3rd 7:30pm ThomAstroSci Scottish Music Stream Friday 6th 10am KatDoesMaths 12 Hour Xmas Spectacular Friday 6th 7pm Christmas Trains Sunday 8th KatDoesMaths and friends Plateup Thursday 12th 7:30 Unstable Fluid Podcast Live recording Friday 13th 7pm ThomAstroSci Space Engineers

This year for JingleJam the sci com collective are getting together to provide two weeks of chaotic streams, including a 12 hour Xmas Spectacular where it'll be me, some maths, and a few friends to keep me sane! This is all in the name of charity and you can donate here: tiltify.com/+the-sci-com...

Forget Christmas, the best part of December is watching two grown men lose their minds watching silly cat videos for charity. #jinglejam

The book I'm reading got to a sad moment, so I decided to catch up on my Buffy rewatch. Only I forgot that my next episode is The Body... Looks like we're having a crying night no matter what

A portrait academic poster with title 'drop impact: lubrication air layer and surface waves in rebound dynamics'. In front of the poster is a small robot with a screen that has a video of Kat standing next to the poster giving a small talk about the work presented on the poster.

28. The PhD gave me a load of opportunities to travel, my favourite of which was getting to attend ICIAM in Tokyo 2023. It was a massive (thousands of people) conference from all over the world getting excited about maths. And I got to present my poster via robot! (Plus Japan was a dream location!)

27. Im really not a morning person, I think if life didn't work around a 9-5 assumption, my productive hours seem to be late evenings-early hours of the morning thesis write-up was a strange time)

The maths department building at Cardiff. The Cardiff university logo - a red square with "Cardiff University, Prifysgol Caerdydd" at the top of the building with the word "ABACWS", the name of the building, going vertically down the side. The view is leaning up from the base of the building with a blue sky behind it. The building is modern with slate grey mismatched panelling, copper window frames, and the ground floor has tall glass walls.

I've had an amazingly full circle moment today where I was invited to speak at the applied mathematics seminar in Cardiff University. I completed my undergraduate in Cardiff in 2019, so to go back just after completing my PhD and share my success with the people who inspired me was a lovely feeling.

26. I AM A PUBLISHED AUTHOR 🥳 (as of literally today, my paper just got published)

Screenshot of the samba cdt website with a group photo of many students and academics. In the middle kat is wearing blue dungarees and the head of a soft toy penguin is visible peeking out above. Over the image are the words "love maths? Want to do a PhD? Join samba!"

25. The SAMBa CDT main group photo on their websites and advertising has me at the front in the centre, with a hot water bottle toy penguin visible in my dungarees.

24. I used to do musical theatre when I was a kid, one of my favourite roles was 'radio' in Bugsy Malone.

23. I have an awful habit of leaving preparation until the last minute, which might be why I'm making slides for a talk on a Sunday afternoon right now...

High praise!!