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PabloN · 10-02-2014, 11:41 AM

Terrific stuff! Look forward to future videos. It's been many many years since I was even remotely involved with fluid mechanics, but I couldn't resist trying some numbers. At the flow velocities shown (0.275 and 0.668 m/s) and using 1.27/24 = 0.05 m for the height of the FR-S model, I get Reynolds numbers of the model in water of about 15,000 and 35,000. The same calculation for a real FR-S with 1.27 m height at 60 mph in air gives a Reynolds number of about 2,000,000 which is about 100x the water channel value, if I did this right (always a big question). Do you expect the flow characteristics (e.g., separation) to change much over this range?

10-02-2014, 11:41 AM	#3
PabloN Senior Member Join Date: Jul 2012 Drives: 2013 Scion FR-S, M/T argento Location: Northern Illinois Posts: 133 Thanks: 109 Thanked 71 Times in 45 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Terrific stuff! Look forward to future videos. It's been many many years since I was even remotely involved with fluid mechanics, but I couldn't resist trying some numbers. At the flow velocities shown (0.275 and 0.668 m/s) and using 1.27/24 = 0.05 m for the height of the FR-S model, I get Reynolds numbers of the model in water of about 15,000 and 35,000. The same calculation for a real FR-S with 1.27 m height at 60 mph in air gives a Reynolds number of about 2,000,000 which is about 100x the water channel value, if I did this right (always a big question). Do you expect the flow characteristics (e.g., separation) to change much over this range? Last edited by PabloN; 10-02-2014 at 01:37 PM.