Questions tagged [capillary-action]
The capillary-action tag has no usage guidance.
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How to calculate pressure necessary to push air bubble out of capillary [closed]
An air bubble is kept by surface tension at the bottom of a capillary. The capillary is sealed at the bottom, where the air bubble sits.
How to calculate the pressure necessary to push the air bubble ...
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Best mesh design for a tea strainer [closed]
I'm currently designing a closed tea strainer / egg made of stainless steel and testing a prototype made of polycarbonate plastic. The problem I'm facing likely has to do with the capillary effect - ...
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Regarding angle of contact and capillary tube of insufficient length
It is written in my book that when a capillary tube is of insufficient length, the liquid does not overflow and the shape of the liquid meniscus changes, but the angle of contact remains the same. I ...
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Capillary action strength questions [closed]
I've been studying capillary action, and I've drawn some conclusions about the behavior which surprised me, and I want to know if I'm understanding it correctly.
According to Jurin's law, the height ...
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Capillary action of water in a sealed vessel
Consider a vessel completely filled with water and a vertically oriented capillary. If the water vessel was open at the top, you would expect capillary action to occur, lowering the water level in the ...
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Same needle shows Hydrophobic and hydrophilic behaviour just by changing orientation or position (from surface to bulk)
If I penetrate water's surface with needle (using hand) then Cohesive forces> Adhesive forces and water molecules climb up the needle (exactly like capillary action) and needle behaves ...
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Shape of a static capillary surface
I am studying the effects of surface tension and in particular the shape of a capillary interface in hydrostatic condition.
Let's recall the Young-Laplace Equation
$ \Delta P = \sigma \bigg(\frac{1}{...
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How do I find the capillary energy of a wetted/dry ping pong ball?
I'm new to capillary forces and I found this statement:
I found Jurin's law or the Young-Laplace equation, but it's always about capillary tube and I would know how to find this expression.
Regards
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Capillary action for isotope separation
Take, for example, D2O and H2O. As they have different densities, they should have a different maximum capillary height h, where h is defined according to Jurin's law. Then, each isotope of D and H ...
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Is the force of surface tension acting on a liquid mensicus in a capillary tube an internal force for the surface?
When we calculate the excess pressure on the concave side of the meniscus of the liquid surface formed in a capillary tube, we balance the force by the atmospheric pressure, force by the pressure on ...
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Why is there excess pressure on the concave side of liquid meniscus in a capillary tube?
I understand the derivation for the expression of excess pressure inside a liquid drop, but, most books also use this concept of excess pressure for explaining the rise of liquid column inside a ...
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Should we regard a capillary tube as a source of potential energy?
When a capillary tube is inserted into a large body of water, there is an increase in potential energy (PE) of the system. This is because the increase in PE of the rising water in the capillary is ...
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Meniscus of water after breaking the capillary
Let us take the capillary dipped in water and we let the water climb normally till its maximum height. Now we break the capillary (assume clean cleavage so there aren't any rough surfaces produced) at ...
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Relation between surface tension and contact angle [duplicate]
The higher the surface tension, the lower the contact angle. Is there a well defined mathematical relation between surface tension and contact angle?
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Meniscus shape on complete wetting
What happens when a liquid wets a solid completely , then what will be meniscus shape in long tube , and I recieved answers telling it will be concave.
But in concave , contact angle is non zero and I ...
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