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Dimensional-Analysis,-Similitude-and-Physical-Modelling

For model governed by gravity forces, obtain scaling ratios for time, discharge, force and power. [2074-Chaitra][8]

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This Chapter Dimensional-Analysis,-Similitude-and-Physical-Modelling consists of the following topics

Given:Draining of tank from initial level `h_0` , time `T`, depends on tank diameter `D`, orifice diameter `d`,acceleration due to gravity `g`, density `rho` and viscosity ``mu`. find:

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For model governed by gravity forces, obtain scaling ratios for time, discharge, force and power.

Define aerofoil with accepted terminology with neat sketch. A kite which may be assumed to be a flat plate and mass 1 kg soars at an angle to the horizontal. The tension in the string holding the kite is 60N when the wind velocity is 50 km/hr horizontally and angle of string to the horizontal direction is `35^0`. The density of air is 1.2 kg/`m^3`. Calculate the drag coefficient for the kite in the given position if the lift coefficient in the same position is 0.45. Both coefficients have been used in the full area of the kite.

For model governed by gravity forces

obtain the scaling ratios for time

discharge

force and power.

Dimensional Analysis

Similitude and Physical Modelling

Fluid-Mechanics