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The formula calculates the specific gravity of a particle based on the specific gravity of the fluid, settling velocity, and particle diameter. It's particularly useful for determining particle properties in fluid dynamics and sedimentation studies.
The calculator uses the formula:
Where:
Explanation: The formula relates the specific gravity of a particle to its settling characteristics in a fluid medium, accounting for both fluid properties and particle size.
Details: Calculating specific gravity of particles is essential in various engineering applications including sedimentation analysis, water treatment processes, mineral processing, and environmental studies of particle behavior in fluids.
Tips: Enter specific gravity of fluid (dimensionless), settling velocity in meters per second, and diameter in meters. All values must be positive numbers with diameter and settling velocity greater than zero.
Q1: What is the significance of the constant 418 in the formula?
A: The constant 418 incorporates gravitational acceleration and fluid viscosity factors specific to calculations at 10°C temperature conditions.
Q2: Can this formula be used for particles of any shape?
A: The formula is most accurate for spherical particles. For non-spherical particles, shape factors and corrections may be needed.
Q3: Why is temperature specified as 10°C?
A: The formula constants are calibrated for water at 10°C, where fluid properties (density and viscosity) are well-defined and consistent.
Q4: What are typical ranges for specific gravity values?
A: Specific gravity typically ranges from 0.5-1.5 for organic materials, 1.5-3.0 for minerals, and up to 19+ for precious metals.
Q5: How accurate is this calculation method?
A: The formula provides good estimates for many engineering applications, but for precise measurements, laboratory testing with calibrated equipment is recommended.