We present an elliptic-algebraic grid generation method to produce a good locally and globally smooth grid, which is orthogonal-to-boundary and clustered-to-boundary. Desirable features of orthogonality to the body surface, and clustering near the surface for viscous problems are made algebraically. Blending the algebraically manipulated grid to that produced using elliptic equation is the heart of the present hybrid method. The solution of the elliptic equation without source terms makes convergence rapid while at the same time it also exploits the speed offered by algebraic techniques. The combined effect produces smooth, orthogonal and clustered grid with considerable savings in computational resources. A multi-block version of this method for flexibility in grid generation was also demonstrated. The present form could be readily extended to three-dimensional problems.
展开▼
