General Aim of Viscosity Simulation
To determine the viscosity coefficient of a liquid using a viscosity simulator inside the viscosity virtual lab.
Method
Stoke's Method
Learning Objectives (ILOs)
By the end of viscosity simulation, students will learn to:
Employ stoke’s method to find the terminal velocity of an object in a viscous medium in the coefficient of viscosity experiment.
Enumerates the different factors that could alter the viscosity of a liquid in the viscosity lab experiment.
Theoretical Background / Context
- When a metallic ball is allowed to fall through a liquid, it will reach its terminal speed after moving a certain distance through the liquid.
- Where its weight is balanced by the viscous (drag) Stoke’s force due to the viscosity of the fluid, and the buoyant force acting on it.
- Writing the equilibrium condition for these forces enables us to derive a formula that can be used to determine the measurement of coefficient of viscosity for liquid.
Principle Work of viscosity simulation
- It depends on measuring the fall - terminal speed of a metal sphere that falls in a glass jar filled with a viscous fluid, as a function of the sphere’ radius.
- Hence the viscosity coefficient of the liquid can be readily determined through the coefficient of viscosity by stokes method experiment.
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