Specific Gravity of Particle Given Settling Velocity and Viscosity Calculator

Specific Gravity of Particle Formula:

\[ G = \frac{V_s \times 18 \times \nu}{[g] \times D^2} + 1 \]

Specific Gravity of Particle (G):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Specific Gravity of Particle?

Specific Gravity of Particle is the ratio of density of particle to density of standard material. It is a dimensionless quantity that indicates how dense a particle is compared to a reference substance (usually water).

2. How Does the Calculator Work?

The calculator uses the formula:

\[ G = \frac{V_s \times 18 \times \nu}{[g] \times D^2} + 1 \]

Where:

\( G \) — Specific Gravity of Particle
\( V_s \) — Settling velocity (m/s)
\( \nu \) — Kinematic viscosity (m²/s)
\( [g] \) — Gravitational acceleration (9.80665 m/s²)
\( D \) — Diameter (m)

Explanation: This formula calculates the specific gravity of a particle based on its settling velocity in a fluid, considering the fluid's viscosity and the particle's diameter.

3. Importance of Specific Gravity Calculation

Details: Calculating specific gravity is crucial in various engineering applications, including sedimentation processes, particle separation, fluid mechanics, and environmental engineering for determining particle behavior in fluids.

4. Using the Calculator

Tips: Enter settling velocity in m/s, kinematic viscosity in m²/s, and diameter in meters. All values must be positive and non-zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the significance of specific gravity in particle analysis?
A: Specific gravity helps determine how particles will behave in fluid environments, including settling rates, buoyancy, and separation efficiency.

Q2: How does kinematic viscosity affect the calculation?
A: Higher kinematic viscosity reduces the settling velocity and affects the specific gravity calculation, as it represents the fluid's resistance to flow.

Q3: What are typical values for specific gravity?
A: Specific gravity values typically range from 1.0 (equal to water) to 2.65 (quartz sand) or higher for denser materials.

Q4: Can this formula be used for all particle types?
A: This formula is most accurate for spherical particles in laminar flow conditions. Irregular shapes may require additional correction factors.

Q5: What are the limitations of this calculation?
A: The calculation assumes ideal conditions and may not account for particle shape, surface roughness, or turbulent flow conditions.