[This is a re-post from the Bristol Design Festival blog where I’m guest blogging the festival. And updated with better graphics thanks to Mike.]
Just back from a cracking talk by Mike Turner, Senior Designer on the Bloodhound SSC project. [Full disclosure, I’m a member of the Bloodhound SSC 1K Club; everything I say is highly biased, I think this is a fantastic project to be based in Bristol. 🙂 ]
The talk was introduced by Bob Mytton, Chair of the West of England Design Forum.
Mike began with a bit of background on his career so far, from trains to cars to JCB diggers. This last culminated with JCB’s DieselMax project, to design a diesel that would go over 350mph. Speed was definitely in Mike’s future!
Although Bloodhound is an “Engineering Adventure”, their tagline, it’s ambition is to:
1. To create a national surge in the popularity of Science Technology, Engineering and Mathematics (STEM) subjects
2. To create an iconic project requiring extreme research and technology whilst simultaneously providing the means to enable the student population to join in the adventure
3. To achieve the first 1000 mph record on land
Mike quickly moved on to his core specialty of designing the outer surface, the bit that interacts with the air flow. Beginning with the outline design concept, Mike developed a refined shape for the car. This went to the team at Swansea University that were handling the CFD work. The results from the CFD, together with the engineering structural & package development (steering, suspension, controls, Andy Green, etc) were then fed into the next design cycle with Mike.
In the Q&A afterwards Mike was quizzed on the time the CFD added to the design cycle time. When they first started each CFD run was taking a couple of weeks (to run the numbers, check them and be confident of the answers). After going public with the project they were picking up additional computing support, each run was around a day.
The main challenges are to make the whole car as strong as possible (without increasing the weight too much); as slippery as possible for a Eurofighter jet engine with a solid fuel rocket strapped to it; as stable as possible in a straight line (without being so stable that Andy can’t direct it at all); and keep it on the ground (without turning into a 1,000mph plough).
So no conflicting pressures for Andy to juggle in his design decisions!
For all the CFD modeling, I was particularly struck by the comment that Mike put up from Ron Ayers, Chief Aerodynamicist on appreciating the designer’s eye for form & proportion “if it looks right, it probably is right”.
As an aside, it was Ron’s earlier work developing the Bristol Bloodhound Surface to Air Missile that gave rise to the project code name.
The Q&A was lively with Mike fielding questions for at least half an hour and staying around for another half hour as people continued to discuss the car, the design activity, and a bunch of technical questions that demonstrated real interest and enthusiasm.
A fantastic evening, thanks to the Bristol Design Festival and West of England Design Forum for organising.