Questions tagged [viscosity]
7 questions
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How to raise viscosity of water
I need to measure a machine for a liquid of which I know the viscosity (89 Kinetic Viscosity) but I don't have the liquid at hand. Is there a clever way of increasing viscosity of water to 89?
John Snow
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Confusion when to use Inner vs Outer Cylinder Diameter in Cylinder Viscometer Problem
I'm facing some confusion regarding the use of the inner vs outer cylinder diameter in a viscometer problem. In a given problem, I was instructed to use the outer cylinder diameter (30mm+1mm = 31 mm) to calculate wall shear stress.
However, in the…
essy.lin
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Can a kugel fountain be made without acceleration from the fluid?
I am looking for an application where a thin spherical shell is suspended in a kugel fountain where the liquid is replaced with gas. is it possible to make the gas flow so that it doesn't brake or accelerate the sphere independent of the rotation of…
David Jonsson
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How to calculate nozzle diameters for liquid mixing?
I need to build static mixer for 2 liquids. The liquids should flow from 2 different containers into common container because of vacuum force applied as shown on the picture.
The liquids can be be mixed in different volume proportions.
The liquids…
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How to determine the slope for the gravity flow of highly viscous fluids (eg. gum)?
I am looking for a method to determine the slope of the pipe required to maintain a gravity flow for highly viscous fluid.
The Hazen-Williams equation for gravity flow is applicable for liquids which have viscosity nearly equal to water. Can we use…
Wings
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Is the net viscous work done at a stationary wall equal to zero?
From the following site:
Ref:https://www.me.psu.edu/cimbala/learning/fluid/CV_Energy/home.htm
I read that the the net work done by viscous force at a stationary wall is zero.
I understand that the wall does not move due to the viscous force acting…
GRANZER
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Why is the kinematic viscosity unit m²/s when you only measure the time it passes a certain distance through a capillary rheometer?
Why did the scientists who designed the kin.viscosity measurement using a capillary rheometer setup decide to express the results in m2/s when all you measure is the time: the less viscous (faster flowing) a fluid is, the faster it will cover the…
Adrian G.
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