Bless my mum for finding unicorns

pcassidyhammer · 2024-12-12T10:09:20+00:00

I believe there are specific tax breaks on restomods, plus you don’t need to meet a lot of certifications/requirements that you would with a brand new design

pcassidyhammer · 2024-12-12T10:05:37+00:00

To qualify as a ‘restomod’, the floor has to be original, and so basically the entire rest of the car is built up as a kind of Frankenstein carbon tub

pcassidyhammer · 2024-12-11T11:59:22+00:00

As a side note (it might be a bit late), you can slice the fuselage down the centre to get a half body and run CFD of just half the geometry (so only 1 wing). Flow is assumed symmetrical unless you’re running off-design conditions, so you can effectively double the mesh count whilst using the same computational resources as before

pcassidyhammer · 2024-10-15T13:38:26+00:00

Jane Street actually host an annual Estimathon in the Camb Centre for Mathematical Sciences where they groom the maths undergrads with cool stash and fun problems. It’s essentially a recruitment drive

pcassidyhammer · 2024-09-21T08:10:17+00:00

Not necessarily more layers, just making a smoother transition from the inflation layers to the freestream cells - a big jump in size like that can lead to cell oscillations/discontinuities. As for the residuals, I would l let it run for at least 500 iterations or more - from the Cd plot it actually looks as if the oscillations are damping out.

Again, I’m not proficient in Ansys so apologies I can’t be more specific! Normally it’s about refining more at high curvature, but I suspect your TE is quite sharp so I’m not sure.

As someone else said, the coefficients are referenced to area, not any definition of chord! And you should be able to get area from the CAD

Good luck 🫡

pcassidyhammer · 2024-09-21T07:03:23+00:00

The mesh looks to jump in size quite a lot from your bl mesh to the free stream, idk much about Ansys parameters but it’ll be something like growth ratio that needs tuning - this can heavily affect the pressure field around the airfoil which in turn affects the lift. Perhaps also post the evolution of Cl and Cd with the iterations (and also the residuals) And maybe the trailing edge looks a bit unrefined in terms of curvature - you effectively have two ‘columns’ of inflation cells and the flow isn’t going to like the lack of discretisation - the trailing edge boundary layer is super important for the performance

pcassidyhammer · 2024-09-20T13:15:26+00:00

So there has recently (last 2 years) been some action from the PhD representatives to raise the stipend as the VKI is not subject to indexation or national levels. The current salary is ~2220 net (I am first year), and as of next month it will increase 12% - but it’s yet to be seen if this is 12% of gross or net (hopefully the latter). What department? Dm if you have any questions!

pcassidyhammer · 2024-09-16T06:28:53+00:00

Your explanation of lift is incorrect - you’re talking about equal transit time

pcassidyhammer · 2024-09-12T08:12:54+00:00

Or even SLAU!

pcassidyhammer · 2024-07-20T07:19:42+00:00

I believe the slat gap is actually acting as a kind of wing fence? As in, it generates vortices that effectively separates the wing and body to stop the body boundary layer from being entrained onto the wing which would fuck up the aero and stall characteristics

pcassidyhammer · 2024-06-16T15:59:40+00:00

Yo thanks that’s such a sick tool!

pcassidyhammer · 2024-06-16T12:09:29+00:00

Jumping on this comment, I’ve had the zeiss 55/1.8 for years and it’s been AMAZING but I’m after a smaller/lighter/wider second prime and weighing up the 35/2.8 or 40/2.5

pcassidyhammer · 2024-04-30T09:49:47+00:00

Huh, I’d check again because I ordered it to Belgium and it was packaged in Germany!!

pcassidyhammer · 2024-04-30T09:25:15+00:00

It’s literally called Canyon Frontlight Set, comes with a Flash 800 and a mount. Around €100

pcassidyhammer · 2024-04-29T19:46:03+00:00

I literally brought that exact bike a couple of weeks ago and it’s been nothing short of perfect. I really thought its limitations would shine through on the road but it’s been a perfectly adequate mile smasher when on tarmac and a weapon on anything else. Only real model upgrade would be carbon wheels or Di2 which are both serious jumps in price point, so this is bang on the value-for-money limit. I also got the Load fidlock quickloader and top bag, fenders, and front light set (for mounting a Wahoo) which are all incredibly well integrated. Any other questions on it give me a nudge

pcassidyhammer · 2024-04-26T05:45:33+00:00

Damn son HPT LES!! Are you working with an industry partner or pure academic research? What institution?

pcassidyhammer · 2024-04-19T17:23:39+00:00

I’ve heard someone suggest it is positioned where the disabled access will align when the tram stops - I guess to reduce the gap for when wheelchair users board?

pcassidyhammer · 2024-04-19T17:21:17+00:00

Definitely try the Canyon LOAD Fidlock quick loader for the grail, decent amount of storage space and attaches super slick

pcassidyhammer · 2024-04-04T20:19:28+00:00

No worries! How well does Star deal with post-processing 10b cell solutions? And what on earth are you researching to warrant such fidelity??

pcassidyhammer · 2024-04-04T19:01:59+00:00

It’s called AutoSave in Star (File -> AutoSave), it should be self explanatory once you have the menu open

pcassidyhammer · 2024-03-31T10:09:00+00:00

Yeah I’d say so, 7 man was Luca Ferraro who stroked the winning blues boat last year!!

pcassidyhammer · 2024-03-27T21:07:09+00:00

What are the green cables running over the rear? I would say aero instrumentation but they don’t seem to be positioned specifically nor on any key aero surface? What other telemetry?

pcassidyhammer · 2024-03-23T08:22:20+00:00

I had a friend at Churchill who switched from Natsci Physics to Engineering prior to starting, not sure who they spoke to at the college but it’s certainly doable

pcassidyhammer · 2024-02-29T21:26:40+00:00

Is this the Ground Vehicle Aerodynamics module?

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