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This paper discusses incompressible Navier‐Stokes solution methods with an emphasis on the pseudocompressibility method. A steady‐state flow solver based on the pseudocompressibility approach is then described. This flow solver code has been used to analyse the internal flow in the Space Shuttle main engine hot‐gas manifold. Salient features associated with this three‐dimensional realistic flow simulation are discussed. Numerical solutions relevant to the current engine analysis and the redesign effort are discussed along with experimental results. This example demonstrates the potential of computational fluid dynamics as a design tool for aerospace applications.

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