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Settling Velocity Formula:
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Settling velocity refers to the terminal velocity of a particle in still fluid. It is the constant speed that a particle achieves when the resistance of the fluid equals the force of gravity acting on the particle.
The calculator uses the settling velocity formula:
Where:
Explanation: The formula calculates the settling velocity of fine particles based on displacement velocity and Darcy friction factor, which accounts for fluid flow resistance.
Details: Accurate settling velocity calculation is crucial for designing sedimentation tanks, understanding particle transport in fluids, and optimizing separation processes in various industries including water treatment and mining.
Tips: Enter displacement velocity in m/s and Darcy friction factor (dimensionless). Both values must be positive numbers greater than zero.
Q1: What is displacement velocity?
A: Displacement velocity refers to the velocity associated with the displacement of an object or particle in a fluid medium.
Q2: What is Darcy friction factor?
A: Darcy friction factor refers to the pressure loss due to friction along a given length of pipe to the velocity of the fluid flow.
Q3: When is this formula applicable?
A: This formula is specifically designed for calculating settling velocity of fine particles in fluid systems where displacement velocity and Darcy friction factor are known.
Q4: What are typical values for Darcy friction factor?
A: Darcy friction factor typically ranges from 0.008 to 0.1 for turbulent flow in smooth pipes, and higher values for rough pipes or laminar flow conditions.
Q5: Are there limitations to this equation?
A: This equation assumes specific flow conditions and particle characteristics. It may be less accurate for very large particles, non-spherical particles, or in highly turbulent flow conditions.