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.
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Answer:
Largest planet in the solar system.
Explanation:
Dhiki - used to grind rice, grains etc
jato - also used for grinding purposes
Answer:
E.
Explanation:
The Three Need Theory or Learned Theory was developed by David McClelland in the 1960s. The theory of needs suggests that an individual's needs are met and fulfilled over some time and gets molded through experiences. He has defined three needs in this theory namely Need for Achievement, Needs for power, and Need for Affiliation.
The Need for Achievement suggests that motivations are driven with the purpose to achieve something. For example, a student who wants to score the first rank in the class is driven with the need for achievement.
The Need for Power is the second need in the needs theory. This suggests that a person's motivation is driven sometimes with a need to control people or have authority. These needs desire to control the decisions of others according to their desire.
The Need for Affiliation is the third and the last in the needs theory. This implies an urge to build interpersonal and social relationships; and the need to feel accepted in society.
So, the correct answer is option E.
