naturalbc.m

The Finite Element Method Usign MATLAB.pdf

% compute and assemble nodal boundary force vector 
function f = naturalBC(f);
include_flags;

for i = 1:nnp
    if flags(i) == 1
        node     = ID(i); 
        f(node) = f(node) + CArea(node)*n_bc(node);
    end
end