Because they put him there
The boundary layer thickness is usually defined as the distance from the wall to the point where the flow velocity reaches 99 % of the free stream value.
In the very thin boundary layer associated with free stream flows with high Reynolds numbers, a steep rise in velocity occurs perpendicular to the wall.
Boundary layer thickness = 0.37*Distance on x-axis/(Reynolds Number^(1/5))
δ = 0.37*x/(Re^(1/5))
This formula uses 3 Variables:
Variables Used
Boundary layer thickness - (Measured in Meter) - Boundary layer thickness is the distance normal to the wall to a point where the flow velocity has essentially reached the 'asymptotic' velocity.
Distance on x-axis - (Measured in Meter) - Distance on x-axis is the distance of point measured along x-axis form origin.
Reynolds Number - The Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities. A region where these forces change behavior is known as a boundary layer, such as the bounding surface in the interior of a pipe.
Learn more about Boundary Layer Thickness on:
brainly.com/question/15344498
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The answer is B, he is frightened by the zebra’s presence. You can tell because baboon said the name made him jump a little as if he was in fear of zebra. Hope this helps!
<span>Dr. Kluivert makes the suggestion because Ike meets the diagnostic criteria for depression and has exhibited symptoms such as a disinterest in his favorite activities, a lack of appetite, an inability to sleep, difficulty concentrating, and a feeling of exhaustion that doesn't decrease even with rest.</span>
