Cr. Schneidesch et Mo. Deville, MULTIDOMAIN DECOMPOSITION OF CURVED GEOMETRIES IN THE CHEBYSHEV COLLOCATION METHOD FOR THERMAL PROBLEMS, Computer methods in applied mechanics and engineering, 116(1-4), 1994, pp. 87-94
A general spectral method is proposed for the numerical solution of th
e steady 2D thermal convection equations. The spatial discretization i
s performed by means of Chebyshev orthogonal collocation which is prec
onditioned by a standard Galerkin finite element technique. Non-trivia
l geometries are treated by combining coordinate transformation to dom
ain partitioning. Natural convection problems are thus solved in compl
ex geometries while keeping the attractive properties of spectral meth
ods.