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Falling Speed refers to the constant speed at which a particle falls through a fluid (liquid or gas) when the force of gravity is balanced by the drag force and buoyant force acting on the particle. It is a crucial parameter in sedimentation processes and fluid dynamics.
The calculator uses the formula:
Where:
Explanation: This formula calculates the falling speed of particles based on the removal ratio, discharge rate, and cross-sectional area of the sedimentation system.
Details: Accurate calculation of falling speed is essential for designing efficient sedimentation tanks, predicting particle removal efficiency, and optimizing water treatment processes. It helps in determining the appropriate dimensions and operational parameters for sedimentation systems.
Tips: Enter the removal ratio (dimensionless), discharge in cubic meters per second, and area in square meters. All values must be positive numbers greater than zero for accurate calculation.
Q1: What is Removal Ratio e?
A: Removal ratio e is the total amount of sludge removed from the sedimentation tank, expressed as a dimensionless ratio.
Q2: What units should be used for discharge?
A: Discharge should be entered in cubic meters per second (m³/s) for consistent results.
Q3: How does area affect falling speed?
A: Larger cross-sectional areas result in lower falling speeds, as the same discharge is distributed over a larger area.
Q4: What are typical falling speed values in sedimentation?
A: Falling speeds typically range from 0.0001 to 0.01 m/s, depending on particle size, density, and fluid properties.
Q5: Can this formula be used for all particle types?
A: This formula provides a general calculation, but specific particle characteristics may require additional considerations for precise results.