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George, I am not aware of any discussion of this in any manual on engineering. But intuitively as a Certified Flight Instructor and semi-retired engineer, I'd say this could be valid. Consider two factors: 1) the compressibility of air (wind) against the ridge and, 2) the aerodynamic effect of the air going over the ridge has to travel faster than the air well above the ridge. Distance from the ridge, other topographic features and vegetation all come into play for obvious reasons.As a pilot in New England, I have experienced significant wind velocity increases between two small mountains (1,500 AGL) enough to put my plane into a wings vertical attitude (Venturi effect). And, downslope winds can be faster than those on the upslope side similar to what has been described and calculated. In any event, these empirical examples should be considered to at least help validate the calculations.
Paul T. Carroccio, P.E., L.S., CFI, F.ASCE
George, if not done so, perhaps you can consult the following two references to further your effort:
Emil Simiu and DongHun Yeo, 2019. Wind Effects on Structures: Modern Structural Design for Wind (4th Ed). Wiley Blackwell, ISBN: 978-1-119-37588-3.
The National Institute of Standards and Technology (NIST) website for: (1) Standardized extreme wind speed database for the United States; (2) Extreme Winds and Wind Effects on Structures.
Dr. Dilip K Barua, Ph.D, P.Eng, M.ASCE