Some animals have learnt to take advantage of the Bernoulli effect without having to read a text book on fluid mechanics. A prairie dog burrow contains two entrances: a flat front door and a mounded back door as shown in Figure 1. When the wind blows with velocity v0 across the front door, the average velocity across the back door is higher than v0 because of the mound. Assume the velocity across the back door is 1.07 v0 and the wind velocity is 6 ms-1.
Question
What pressure difference is generated to provide fresh air within the burrow?
Image for Some animals have learnt to take advantage of the Bernoulli effect without having to read a text book on fluid
Show transcribed image text Some animals have learnt to take advantage of the Bernoulli effect without having to read a text book on fluid mechanics. A prairie dog burrow contains two entrances: a flat front door and a mounded back door as shown in Figure 1. When the wind blows with velocity v0 across the front door, the average velocity across the back door is higher than v0 because of the mound. Assume the velocity across the back door is 1.07 v0 and the wind velocity is 6 ms-1.
Question
What pressure difference is generated to provide fresh air within the burrow?