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Learn how to derive the viscous force formula for a spherical particle falling through a liquid, and how to apply it to calculate the terminal velocity. See examples, applications and FAQs on Stoke's law.
- Stoke’s Law is an equation that expresses the drag force resisting the fall of small spherical particles through a fluid medium.
- Stoke’s Law states that the force that retards a sphere moving through a viscous fluid is directly proportional to the velocity and the radius of t...
- We use Stoke’s law to determine the terminal velocity, the size and the density of sphere and liquid, respectively. Stoke’s law can also be used to...
- Stoke’s Law is valid for determining viscosity when velocity is constant.
- Settling of sediment in freshwater and measurement of the viscosity of fluids are some of the applications of Stoke’s Law.
Jul 19, 2024 · Learn the definition, formula and dimensional formula of viscous force, the internal resistance force between fluid layers. Compare viscosity and friction and their properties.
- The factor on which the viscosity of the fluid depends is the temperature of the fluid. The temperature of the fluid has a great impact on the visc...
- Viscosity is a very important property of the fluid which is used to understand the concept of internal friction occurring between the layers of th...
- This section carries higher weightage in the competitive exam of JEE. It contains various important topics like manometer, angle of contact, surfac...
Learn what viscous force is and how to calculate it using a simple formula. Viscous force is the internal resistance force that opposes relative motion between fluid layers when a fluid is exposed to tangential force on its surface.
In fluid dynamics, Stokes' law is an empirical law for the frictional force – also called drag force – exerted on spherical objects with very small Reynolds numbers in a viscous fluid. It was derived by George Gabriel Stokes in 1851 by solving the Stokes flow limit for small Reynolds numbers of the Navier–Stokes equations .
Feb 20, 2022 · The precise definition of viscosity is based on laminar, or nonturbulent, flow. Before we can define viscosity, then, we need to define laminar flow and turbulent flow. Figure shows both types of flow. Laminar flow is characterized by the smooth flow of the fluid in layers that do not mix.
Feb 2, 2023 · Stokes' law is a formula for the drag force experienced by small spherical particles passing through a viscous fluid. Learn the equation, assumptions, derivation, and applications of Stokes' law and how it relates to settling velocity.
David explains the concept of viscosity, viscous force, and Poiseuille's law.Watch the next lesson: https://www.khanacademy.org/science/physics/fluids/fluid-...
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