unstructured grid
please let me know if any one has developed a code for 2D steady state conduction process using unstructured grid

Re: unstructured grid
Here it is the brief contents of my book:
A.N. GIL'MANOV METHODS OF ADAPTIVE MESHES IN GAS DYNAMIC PROBLEMS Moscow, Nauka, Publishing Company Fizmatlit, 2000, 247pp. ISBN 5922100602 Readership: Scientists, engineers, graduate and postgraduate students dealing with computational simulation. Summary: An application of adaptive meshes to gas dynamic problems is considered. The aeroelasticity problems with relative large displacement of interacting medium (the geometrically adaptive meshes), and the gas dynamic problems with multyscale flow structure (dynamically adaptive mashes) are considered, where the methods of adaptive meshes are especially effective. The scheme of Arbitrary Lagrangian Eulerian (ALE) method and high accuracy TVD scheme are used. Multiple in one and twodimensional (flat, axiallysymmetric) problems are solved using geometrically and dynamically adaptive meshes. Contents: Foreword. General statements about adaptive meshes. Introduction. Adaptive meshes. Geometrically adaptive meshes. Essentials of the numerical method for solving problems of interaction of a gas with deformable bodies. Mathematical statement of the problem of interaction of a gas with membrane shells. Description of the algorithm for solution of aeroelasticity problems. Conditions on artificial boundaries of computation domain. Solution of interaction problems on geometrically adaptive meshes. Solution of test and model problems. Interaction of membrane spherical gasfilled shell with a rigid surface. Interaction of elastic membrane with a gas flow. Break out the axiallysymmetric parachute in a gas flow. Nonstationary processes in a rocket engine. Dynamically adaptive meshes. Essentials of the numerical method for solving of gas dynamic problems with multiscale flow structure. NavierStokes equations. Schemes of increased order of approximation. Finitedifference equation of TVD scheme. Boundary conditions. Method of fractional steps. Locally characteristic approach. Dynamically adaptive meshes. Solutions of external and internal problems on dynamically adaptive meshes. Onedimensional test problems. Problems on twodimensional dynamically adaptive moving meshes. Computation of gas dynamic problems on twodimensional dynamically adaptive embedded meshes. Numerical investigation of accuracy of TVD scheme at gas dynamic singularities. Test problems of viscous gas flows. Viscous gas flow in inlet. Deceleration of a gas flow in a pseudoshock. Conclusion. Author: Professor, Doctor of Sciences A.N.Gil'manov. Leading Scientist of the Institute of Mechanical Engineering of the Russian Academy of Sciences. 
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