What is Stokes law write its condition?

What is Stokes law write its condition?

What is Stokes’ law? Stokes’ law is a law in physics that states that the force that resists a sphere’s fall in a viscous fluid is directly proportional to the velocity of the sphere, the radius of the sphere, and the viscosity of the fluid.

What is meant by inviscid flow?

Inviscid flow is the flow of an inviscid fluid, in which the viscosity of the fluid is equal to zero. Though there are limited examples of inviscid fluids, known as superfluids, inviscid flow has many applications in fluid dynamics.

What is Stoke in fluid mechanics?

Navier-Stokes equation, in fluid mechanics, a partial differential equation that describes the flow of incompressible fluids. The equation is a generalization of the equation devised by Swiss mathematician Leonhard Euler in the 18th century to describe the flow of incompressible and frictionless fluids.

What are the assumptions in stokes law?

Assumption of Stokes’ Law Particles must be solid, smooth, and spherical. Particles must be of uniform density. Particles must be sufficiently large (>0.001mm) as compared to molecules of fluid so that the thermal (Brownian) motion of the fluid molecules does not affect the particles.

What do you mean by streamline flow?

Definition of streamline flow : an uninterrupted flow (as of air) past a solid body in which the direction at every point remains unchanged with the passage of time : laminar flow — compare turbulent flow.

What is a stoke in viscosity?

One stokes is equal to the viscosity in poise divided by the density of the fluid in grams per cubic centimetre (g·cm–3). It is most usually encountered as the centistokes (cSt), equal to 0.01 stokes.

What is stagnation condition?

The thermodynamic state which would exist at a point in a fluid stream (stagnation point) if the flow at that point was brought isentropically to rest.

What are three types of flow name and explain them?

The three movements were human capital flow, trade flow and capital or investment flow.

What is streamline flow?

What are the assumptions and limitations of Stokes law?

Stokes’ law is a generalized equation that describes how certain factors affect the rate of settling in dispersed systems. The implication is that, as the average particle size of suspended particles is increased, there is a dramatic effect on the resultant rate of sedimentation.

Which is the practical examples of Stokes law?

Come down from parachute: While jumping from an airplane, parachute helps us to land safely on the earth. A man coming down with the help of a parachute acquires constant terminal velocity. Stoke’s law helps a person coming down by making use of a parachute, to reduce.

What is steady or streamline flow?

Streamline flow (also called flow) is a type of flow of fluid in which fluid in which travels in regular paths. In streamline flow, the velocity, pressure and other such properties remain constant in fluid at each point.

What is the meaning of steady flow?

Definition of steady flow : a flow in which the velocity of the fluid at a particular fixed point does not change with time. — called also stationary flow. — compare uniform flow.

What are conditions for Stokes law to be obeyed?

Solution : Yes, the Stoke’s law is valid under the following conditions: 1. the body falling in the viscous medium must be perfectly rigid and smooth. 2. There is no slip between the body and the medium.

What are the assumptions in Stokes law?

What is poise and Stokes?

Poise and stokes are units of measure used to quantify viscosity. Poise is a unit of measurement used particularly for dynamic viscosity, while stokes is for kinematic viscosity. Viscosity, which describes a fluid’s consistency or “thickness,” comes in these two types for some distinct reasons.