It is a generic term for lots of situations. dynamic pressure is derived from Bernoulli's principle and equation, and is a mathematical term with specific units. Should this not be a redirect to dynamic pressure? If not, what's the distinction? - Reuben 20:46, 25 July 2007 (UTC) Reply any objections? Giuliopp ( talk) 00:42, 11 January 2008 (UTC) Reply Anyway, considering the usage of such expression in articles like Tunguska event and Meteoroid, I agree that it is more akin to stagnation pressure than dynamic pressure. Dolphin51 ( talk) 04:59, 7 January 2008 (UTC) Reply This concept of ram pressure is rather vague to me, by reading the article (basically it's just pressure what's so special about it?). I am in favour of re-directing "Ram pressure" to stagnation pressure. If we are talking about high Mach number flows we are talking about compressible flows. Besides, US authors mostly define dynamic pressure as 1 / 2 ρ V 2 with the proviso that it is applicable only to incompressible flow. It is not because of the high dynamic pressure. When a body moving with high Mach number experiences heating on its leading edges it is because of the high stagnation temperature associated with its Mach number. Dynamic pressure is not a pressure in the usual sense - it is the difference between two pressures - stagnation pressure and static pressure. I believe it is synonymous with stagnation pressure. Hogg 16:37, 3 January 2007 (UTC) Reply I am no expert on the concept of ram pressure but I challenge the suggestion that it is similar to dynamic pressure. Fyre4ceįyre4ce: you are absolutely correct and the article is misleading. I would define "ram pressure" to be equivalent to the dynamic pressure of the flow, equal to (1/2) x (density) x (velocity)^2 in the incompressible regime, and defined by the total pressure/static pressure compressible relation in the compressible regime (Ma > 0.3).
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