Implicit algorithms and their linearization for the transient incompressible Navier-Stokes equations |
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Authors: | SMITH ANTONY; SILVESTER DAVID |
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Institution: |
Mathematics Department, UMIST Manchester M60 1QD, UK
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Abstract: | Email: na.asmith2{at}na-net.ornl.gov Email: na.silvester{at}na-net.ornl.gov The issue of appropriate time discretization methods for theunsteady incompressible Navier-Stokes equations is consideredfrom a practical perspective. Conventional implicit time-steppingalgorithms are not feasible for long-time simulations sincethey inherit the quadratic nonlinearity of the steady-stateequations. As a result, two new linearized versions of the purealgorithms are analyzed herein. These have similar stabilityproperties and comparable accuracy to the underlying nonlinearmethods. |
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