capillary rise


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capillary rise

[′kap·ə‚ler·ē ‚rīz]
(fluid mechanics)
The rise of a liquid in a capillary tube times the radius of the tube.
References in periodicals archive ?
The capillary rise observed in the glass tube was then recorded using the light source and the digital camera.
The equations governing the capillary rise in a circular glass tube are well-known.
The capillary rise method has so far been widely used for surface tension measurements at ambient temperature and pressure.
As can be seen in Table 1, the capillary rise and the interfacial tension are gradually decreasing with pressure.
The summary of IFT, capillary rise and the densities of the equilibrated fluid phases measured in this gas-oil system at 71.
Smooth rollers are used for establishing the capillary rise and not for compacting the ploughed soil.
The capillary rise predicted by Eq 1 is half the magnitude of the familiar result for the capillary rise in a cylindrical channel [9].
In order to assess whether or not Eq 1 accurately predicts the maximum capillary rise of molten metal infiltrant in a porous metal skeleton, an experiment was conducted with channels of varying sizes.
Table 1 shows the predicted maximum capillary rise in the part using typical material properties for bronze infiltrant; [rho] = 8780 kg/[m.
The results of this experiment demonstrate good agreement with the calculated maximum capillary rise equation.
Surface roughness on the interior of the channels within a porous skeleton will result in greater capillary rise than that predicted by Eq 1 for two reasons: (i) The surface roughness increases the perimeter length of contact between infiltrant and skeleton, and (ii) the surface roughness may effectively decrease the cross-sectional area of the channel.