Dynamic pressure is a physics-based mathematical calculation that allows you to determine the changing pressures that occur through pipes, hoses or other capsules with changing pressure readings. Dynamic pressure is defined as the component of fluid pressure representing the fluid kinetic energy on an object. Calculate this pressure by understanding a simple equation that includes values for fluid density and velocity.
- Pencil
- Paper
- Calculator
- Piping or tubing
- Thermometer
- Water
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Instructions
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1
Use the equation pd = 1/2 ρ v^2, where pd = dynamic pressure, p = density of fluid, and v = velocity of the fluid. Pd is measured in Pa, density will be measured in kg/m^3, and velocity is measured in m/s.
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2
Take the temperature of the water in piping using the thermometer. Record this temperature in degrees Celsius.
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3
Use a known constant water density value depending on the temperature of the water. At 0 degrees C water density is 1000 kg/m^3; at 32 degrees F water density is 62.4 lbm/ft^3.