TY - JOUR
AU - Tani, Mohamed El
AB - Abstract A theoretical model for tensiometers is presented. It is based on a new physical considerations: the tensiometer filter is a quasi-saturated porous medium and the transmission fluid in the cavity is in hydrostatic equilibrium and is incompressible. The evolution equations form a complete system which could be used and coupled in a wide number of situations once filter dimensions and geometry have been correctly defined. The model is applied to tensiometer design and leads to new design recommendations. It predicts the existence of two distinct evolution modes for tensiometers. The time constant of the first varies linearly with the ratio of filter thickness to contact area and that of the second varies according to the square of the filter thickness and is independent on the contract area. The model leads to the formulation of an equation for fine-filter tensiometers. This extends Richards and Neal's equation by taking fine-filter geometry and gravity into account.
TI - Tensiometer reaction related to its filter dimensions
JF - Transport in Porous Media
DO - 10.1007/BF01073174
DA - 1995-09-01
UR - https://www.deepdyve.com/lp/springer-journals/tensiometer-reaction-related-to-its-filter-dimensions-hG2CAVOPLK
SP - 235
EP - 250
VL - 20
IS - 3
DP - DeepDyve
ER -