Some animals have learned to take advantage of Bernoulli effect without having read a fluid mechanics book. For example, a typical prairie dog burrow contains two entrances—a flat front door, and a mounded back door as shown in the figure below. When the wind blows with velocity V0 across the front door, the average velocity across the back door is greater than V0 because of the mound. Assume the air velocity across the back door is 1.07V0. For a wind velocity of 5.6 m/s, what pressure differences, p1 - p2, are generated to provide a fresh air flow within the burrow?

To find:- p1-p2 Given:-ρ=1.23kg/m3V2=1.07V=1.07*5.6=5.992 m/sV1=5.6m/s

Answered: Some animals have learned to take…

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter14: Sheet-pile Walls

Section: Chapter Questions

Problem 14.9P

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Some animals have learned to take advantage of Bernoulli effect without having read a fluid mechanics book. For example, a typical prairie dog burrow contains two entrances—a flat front door, and a mounded back door as shown in the figure below. When the wind blows with velocity V₀ across the front door, the average velocity across the back door is greater than V₀ because of the mound. Assume the air velocity across the back door is 1.07V₀. For a wind velocity of 5.6 m/s, what pressure differences, p₁ - p₂, are generated to provide a fresh air flow within the burrow?

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