conductivity tensor

conductivity tensor

[‚kän‚dək′tiv·əd·ē ‚ten·sər]
(electricity)
A tensor which, when multiplied by the electric field vector according to the rules of matrix multiplication, gives the current density vector.
References in periodicals archive ?
z] (r) components of the conductivity tensor in the direction of the axis Or is written as [6]:
Values of the conductivity tensor components in PML which is perpendicular to the axis Or (see 4 in Fig.
The hydraulic conductivity tensor function on unsaturated polluted soil-water system can be simplified following common modeling approach.
The description of each domain is based on a generalized version of Ohm's law defining the relationship between the electric field E, derived from the potential [phi](V), the current density J, and the conductivity tensor D.
nfo], the conductivity tensor for the case where there is no fiber orientation which can be represented by a 3 x 3 symmetric matrix and defined in the basis formed as.
This is to say that the heat flow and the temperature gradient are vector quantities related by the thermal conductivity tensor.
In the generic anisotropic case, to estimate the temperature field, it is necessary to determine the thermal conductivity tensor of ground.
Although empirical formulas gave just approximate values of hydraulic conductivity and results must be interpreted with caution, they are consistent with the hypothesis of an anisotropic medium with the major conductivity tensor oriented along the horizontal plane, and the minor direction along the vertical.
z] = radial, angular, and longitudinal components of the water conductivity tensor.
The assumption here is that the principal directions of the sample thermal conductivity tensor are parallel to the corresponding sample surfaces.
Contract Bounds on the Effective Conductivity Tensor of Anisotropic Random Materials