Example

Problem 1: Horizontally Accelerating Tank without Spillage

An open tank is 3 m3\text{ m} long and 2 m2\text{ m} high and initially contains water to a depth of 1.5 m1.5\text{ m}. It accelerates horizontally at 2.5 m/s22.5\text{ m/s}^2. Determine the end depths, check for spilling, and find the maximum bottom gauge pressure.

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Example

Problem 2: Volume Spilled during Horizontal Acceleration

A tank is 4 m4\text{ m} long, 2 m2\text{ m} wide, and 2 m2\text{ m} high. It initially contains water to a depth of 1.8 m1.8\text{ m} and accelerates horizontally at 3.0 m/s23.0\text{ m/s}^2. Determine the spilled volume after relative equilibrium is reached.

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Example

Problem 3: Tank Accelerating Upward

A water tank accelerates vertically upward at 3.0 m/s23.0\text{ m/s}^2. Determine the gauge pressure 1.2 m1.2\text{ m} below the free surface.

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Example

Problem 4: Tank Accelerating Downward

A water tank accelerates vertically downward at 6.0 m/s26.0\text{ m/s}^2. Determine the gauge pressure 1.5 m1.5\text{ m} below the free surface and state the free-fall limit.

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Example

Problem 5: Combined Horizontal and Upward Acceleration

A 5 m5\text{ m} long tank accelerates horizontally at 4.0 m/s24.0\text{ m/s}^2 while also accelerating upward at 2.0 m/s22.0\text{ m/s}^2. Determine the free-surface angle and end-to-end elevation difference.

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Example

Problem 6: Rotating Open Cylindrical Tank

A cylindrical tank is 1.2 m1.2\text{ m} in diameter and 1.8 m1.8\text{ m} high and initially contains water to a depth of 1.2 m1.2\text{ m}. It rotates at 60 rpm60\text{ rpm}. Determine the center and wall depths and check for spilling.

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Example

Problem 7: Speed for Incipient Spillage

An open cylindrical tank has radius 0.75 m0.75\text{ m}, height 1.50 m1.50\text{ m}, and initial water depth 1.00 m1.00\text{ m}. Determine the rotational speed at which water just reaches the rim.

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Example

Problem 8: Radial Pressure Difference in a Closed Rotating Tank

A completely filled cylindrical tank of water rotates at 8.0 rad/s8.0\text{ rad/s}. Determine the pressure increase from the rotation axis to a point at radius 0.50 m0.50\text{ m} at the same elevation.

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