thestig84 wrote:I dont understand the CFD saving money agruement. I know Mclaren spend nearly as much running and maintaining their supercomputers as the windtunnel (not sure on buying/building comparisons). If Virgin are to get CFD only to work they will spend just as much as using a wind tunnel.
I guess they save money by not using both.
It is quite simple:
You got a multimillion€ Windtunnel facility that costs enourmous money to maintain and run + you need a full blown windtunnel model workshop to actually build all those 40% winddtunnel models + samples of all the iterations you fancy to build.think of all the moulds for parts that have to be soooo precise so you can scale the effects for the full size design with confidence.Plus you still need a ways to "adjust" those findings to the real world ...
With CFD only you got no extra work for designing the modelsize car and tooling.the service and maintainance should be a lot cheaper than a tunnel and the number of specialists to run the software is surely also less than whats needed for a full blown tunnelprogramme.
If you build on what you know and keep on an iterative track feeding back the findings from the track i feel this is not a quick ways forward but potentially a steady climb to a full understanding.
Do current aircraft see windtunnel work at all?