Fluid Mechanics

In a fluid the velocity measured at a distance of 75mm from the boundary is 1.125m/s. The fluid has absolute viscosity 0.048 NS/m2 and relative density 0.9. What is the velocity gradient and shear stress at the boundary assuming a linear velocity distribution. Also calculate kinematic viscosity.

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Fluid Properties Calculations Problem Statement In a fluid the velocity measured at a distance of 75mm from the boundary is […]

In a fluid the velocity measured at a distance of 75mm from the boundary is 1.125m/s. The fluid has absolute viscosity 0.048 NS/m2 and relative density 0.9. What is the velocity gradient and shear stress at the boundary assuming a linear velocity distribution. Also calculate kinematic viscosity. Read More »

The surface tension of mercury and water at 60°C are 0.47 N/m and 0.0662 N/m respectively. What capillary height change will occur in these two fluids when they are in contact with air in a glass tube of radius 0.30mm? Use θ = 130° for mercury and 0° for water.

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Capillary Height Calculations Problem Statement The surface tension of mercury and water at 60°C are 0.47 N/m and 0.0662 N/m

The surface tension of mercury and water at 60°C are 0.47 N/m and 0.0662 N/m respectively. What capillary height change will occur in these two fluids when they are in contact with air in a glass tube of radius 0.30mm? Use θ = 130° for mercury and 0° for water. Read More »

At a depth of 7.5km in the ocean, the pressure is 75Mpa. Assume a specific weight at the surface of 10 KN/m2 and an average bulk modulus of elasticity of 2.5 Gpa for that pressure range. Find (a) the change in specific volume between the surface and 7.5km (b) the specific volume at 7.5km and (c) the specific weight at 7.5km.

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Ocean Pressure Calculations Problem Statement At a depth of 7.5km in the ocean, the pressure is 75MPa. Assume a specific

At a depth of 7.5km in the ocean, the pressure is 75Mpa. Assume a specific weight at the surface of 10 KN/m2 and an average bulk modulus of elasticity of 2.5 Gpa for that pressure range. Find (a) the change in specific volume between the surface and 7.5km (b) the specific volume at 7.5km and (c) the specific weight at 7.5km. Read More »

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