monkeyseemonkeydo

The pedals must've been clicking like a good un for a while...

I tried it (very briefly) on my old Inspired but very quickly found that the gearing is just too low on a trials bike to realistically use. I'm sure someone like Ackrigg could give it a good go but it's not for mortals.

What's a me me?

Did they say which year?

13.5t up front (well, 13 or 14 obviously)... No chance!

Yeah exactly- Alain Robert is mental but massively talented as well. I can imagine him sitting in his living room watching 'Don't Look Down' and just saying 'pussies' (in a strong French accent of course)!!

Technically there's nothing to it in terms of climbing- none of that was challenging (face it- most of the places were accessed by ladders) and the hanging again is not technically difficult in any way, just a bit mad. The most impressive and dangerous thing in the whole program was the backflip on top of Moscow bridge which could've gone wrong so easily. None of it made me feel queasy at all though. That failed base jump above... fuuuuuck.

Ah gotcha. Looks like they're after force coefficients etc. initially but beyond that velocity vector plots, surface pressure plots etc. well show areas of separated flow round the leading edge of the cab and how the wake changes with changing flow angle. If there are extra credits for going a little further think about adding radii to the trailing edge of the trailer or giving the top surface some curvature like some lorries or there to prove the effect small changes have on the wake and hence forces. You could probably even relate those back to improving fuel economy to give it some weight.

If you can view a velocity vector field horizontally through the domain (x-z plane) somewhere within the height of the model you'll be able to see what happens at the boundaries. Looking at pressure contours won't necessarily make it obvious. I'm not 100% sure how it will deal with the inflow at 20 degrees or 40 degrees since the flow incident on the lorry will actually need to be coming through the side wall of the domain rather than the 'inlet'. It have been easier to make the domain a bit wider and yaw the model while keeping the inlet conditions the same...

Why? Danny deserved that and I still quite like the version you did with the pale green wheels! Hopefully it'll converge ok and give you some sensible numbers out. You should quickly be able to tell from the vectors whether it's doing what you expect. Some of that will depend on what the sides of the domain are defined as- obviously if they are 'walls' the inlet velocity will be forced to flow down the rest of the domain and won't give the desired results...

See my edits. Yeah without knowing what way round you'd created the domain he would've assumed you had z as the vertical axis and told you to leave z as 0 but because of your orientation it's y that needs to be left zero.

Ah so it's x and z. so y velocity should be 0 and z velocity should be 20sin20. Edit: 20 degree case: x=18.79m/s, y=0m/s, z=6.84m/s and for the 40 degree case: x=15.32m/s, y=0m/s, z=12.86m/s. Edit 2: In that last pic it looks like your inlet is at the back of the volume (behind the truck)... I'm it's not but just in case.

Assuming x is streamwise, and y is spanwise I get what you've done. i.e. if you wanted a 25m/s effective wind speed at a 20 degree angle to the direction of travel the x velocity would be 25cos20 and the y velocity would be 25sin20. The next question is whether you need to be travelling at a certain speed as that would then come into play.

How is the domain oriented? If x is streamwise, is y spanwise?

Unfortunately I haven't used Ansys' CFD capabilities... It's not as simple as defining it as a vector is it? Like U velocity and V velocity? Edit: This is what Fluent's velocity inlet set up used to look like:

Surely they'll have the odd cancellation? If it's only 2 days tell them you can be there anytime they become available just to get it done. Show enthusiasm and commitment and they're bound to cave...

Which looks remarkably similar to the Zee's:

Nah, I make a point of running a mile whenever TV cameras come out!! I was around in the background during the test and got to meet Guy which was cool. Had a quick chat to him about Danny Mac and trials as it happens!

Alternative to an Oset I guess.

He means if you were accounting for all the time you've wasted caused by Brad's retardedness the wheel might've actually cost you hundreds in lost time.

I thought it was the front tyre/wheel that was on backwards... Looks really nice though, good work!

Unlikely but a vague possibility considering the design.

Forks themselves don't look massively bent but the head angle looks super slack. Bent downtube/monocoque?

Are there no options to move sideways into a more fulfilling role in the company and potentially more permanent? If you explain your situation to the boss he may be able to help you out, especially if he's happy with what you're doing and wants you to continue. If there's no other options there for you I'd still say you'd be silly to leave without already having something lined up (in this climate anyway). If you accept the extension you could always get an awesome job next week and just work out a months notice or whatever surely?

When did it become cool to look like a homeless bum? Sponsored by Nike but if I saw any of them walking down the street I'd assume they'd just robbed some poor kid of his trainers.