hardingfv32 wrote:This faith in a 100% tunnel is not well founded.
Using a 100% wind tunnel to test a F1 car could have as many accuracy issues as testing with a 60% model. There are simply no 100% tunnels big enough to do testing without blockage issues. Note the effect on the model when tested in the two sizes of test chambers.
Crucial_Xtreme wrote: The blockage (ratio of model frontal-area to test-section-area) shouldn’t exceed 7.5%. Once the teams are aware of the frontal area of their car, test section area and scale (50%, 60%, 100%), one now can calculate the blockage in percentage for the scaled vehicle.
1) Not easy to find info. Where did you get the 7.5% blockage number?
Crucial_Xtreme wrote: My only point was I'm sure the tunnel operators at WindShear are aware of blockage and have plans in place to make it a non-factor when obtaining data.
marcush. wrote:My thought on this : you could integrate the model shop work into the work needed to produce the real thing....all moulds could be reused for example to produce the end product .the sclae models basically create :extra design work -press the 60% button? you need SUPER accurate molds and parts to test ...etc etc ..when you could produce one extra tub to accomodate the test equipment for aero work ..
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