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Question
is there any formula for viscosity and what is the formula for viscous drag force
is there any formula for viscosity and what is the formula for viscous drag force
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Solution
Hello!
The drag force (F) experienced by a body in a fluid is given by the Stoke's Law, whicb is
F = 6πηrv
where
η is the viscosity of the fluid
r is the radius of the body (considering it as a sphere)
v is the velocity of the body
The viscous force (f) exerted by a fluid if given as
f = ηA(dv/dx)
where A is the surface area of contact
and dv/dx is the velocity gradient
Hello!
The drag force (F) experienced by a body in a fluid is given by the Stoke's Law, whicb is
F = 6πηrv
where
η is the viscosity of the fluid
r is the radius of the body (considering it as a sphere)
v is the velocity of the body
The viscous force (f) exerted by a fluid if given as
f = ηA(dv/dx)
where A is the surface area of contact
and dv/dx is the velocity gradient
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