Did you know you can solve iterative CFD problems on an Excel spreadsheet? Successive relaxation of Laplace€™s equation is easy, since each nodal value is the average of its 4 neighbors. Calculate irrotational potential flow through a contraction as shown in the figure. To avoid €œcircular reference,€ set the Tools/Options/Calculate menu to €œiteration.€ For full credit, attach a printout of your solution with ψ at each node.

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Wall, ψ 5 ψ = 3.333 Outlet ψ = 1.667 Inlet 归! Wall, ψ = 0 Wall, ψ = 0