calcBKB
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Computes the product B'*K*B in a vectorized fashion, where B are the shape function derivatives. This is used internally by Assemble_LHS
Version : 1.0
Author : George Kourakos
email: giorgk@gmail.com
web : http://groundwater.ucdavis.edu/msim
Date 28-Mar-2014
Department of Land Air and Water
University of California Davis
Contents
Usage
BKB = calcBKB(B, K, opt, ii)
Input
B: [Nel x N_sh^2] contains the contributions of each element to the final conductance matrix
K : [Nel x Nanis] Hydraulic conductiviy element values. The number of columns is defined by the anisotropy. Maximum number is 3.
opt : Structure variable with the following fields
dim : dimension of the elements
el_type : the element type
el_order : the element order
ii : In case of nested assembly this indicates the iteration. In vectorized assembly this is not used
Output
BKB: the product B'*K*B