Project ForgeFluid Mechanics
Mechanical Operations
GATE 2018
Easy
The terminal velocity of a spherical particle in gravitational settling under Stokes' regime varies
- Alinearly with the particle diameter
- Blinearly with the viscosity of the liquid
- directly with the square of particle diameter
- Dinversely with the density of particle
Explanation
v=gd²(ρp−ρf)/(18μ) — terminal velocity varies directly with the square of the particle diameter.
Source: GATE CH 2018 (2018)
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