capillary pressure


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Related to capillary pressure: interfacial tension

capillary pressure

[′kap·ə‚ler·ē ‚presh·ər]
(fluid mechanics)
The difference of pressure across the interface of two immiscible fluid phases.
The pressure or adhesive force exerted by water in an enclosed space as a result of surface tension.
(physiology)
Pressure exerted by blood against capillary walls.
References in periodicals archive ?
where [P.sub.cave], [K.sub.ave], and [[phi].sub.ave] are average capillary pressure, permeability, and porosity of plugs under the same water saturation; [sigma] is interfacial tension; [theta] is wetting angle; [S.sub.wn] is normalized water saturation; [S.sub.w] is water saturation; [S.sub.wc] is connate water saturation; [S.sub.or] is irreducible oil saturation.
where [P.sub.c] is capillary pressure and [mathematical expression not reproducible] and [P.sub.Water] are pressure in C[O.sub.2] and water, respectively.
It is worth noting that the capillary pressure transducer is the most commonly used transducer in the extrusion industry.
The wetting front capillary pressure can be obtained from the integration of the Brooks and Corey equation of relative hydraulic conductivity (Brooks and Corey, 1964), through the expression (Brakensiek, 1977; Rawls et al., 1983; Ogden and Saghafian, 1997):
Compared to figures in literatures [58], simulated capillary pressure data demonstrated that standard wettability tests (Amott-Harvey and free imbibition) may give misleading results when the sample was fractionally wet in nature [58].
Accordingly, two dies were used with different Length/Diameter (LID) ratios, 30/1 and 10/1, to estimate the capillary pressure drop.
In case of a gravity assisted heat pipe the requirements for capillary pressure are not significant.
Previous research areas that have been explored by winners and nominees of the Oryx GTL Student Awards include gas reservoir stimulation and management of Qatar's hydrocarbon resources, the characterisation of multiphase flow properties, capillary pressure and CO2 storage.
Table 2 shows the relationship between rock intrinsic permeability and capillary pressure [p.sub.c50] ([p.sub.c50] represents the capillary pressure when mercury injection saturation is 50% on the intrusive mercury injection curve) from the routine core analysis.
Thus, the overall coating bead pressure gradient [DELTA][p.sub.DU] shall be composed by the single sections including the capillary pressure at the interfaces.
M Some authors have proposed that hypertension may increase capillary pressure and acute elevation in systemic perfusion pressure may accelerate hyperfiltrationand these events lead to damage to the kidney.
The wick in the evaporator is made with fine pores for purpose of developing capillary pressure to circulate fluid around the loop, while the wick in the compensation chamber is made with larger pores for purpose of managing fluid ingress and egress.