Abstract
As discussed in Chapter 4, generally the motion of fluids encountered in engineering applications is described by the Navier-Stokes equations. Considering today’s computational fluid dynamics capabilities, it is possible to numerically solve the Navier- Stokes equations for laminar flows (no turbulent fluctuations), transitional flows (using appropriate intermittency models), and turbulent flow (utilizing appropriate turbulence models). Given today’s computational capabilities, one may argue at this juncture that there is no need to artificially subdivide the flow regime into different categories such as incompressible, compressible, viscid or inviscid ones. However, based on the degree of complexity of the flow under investigation, a computational simulation may take up to several days, weeks, and even months for direct Navier- Stokes simulations (DNS). The difficulties associated with solving the Navier-Stokes equations are caused by the existence of the viscosity terms in the Navier-Stokes equations.
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Schobeiri, M.T. (2010). Inviscid Potential Flows. In: Fluid Mechanics for Engineers. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-11594-3_6
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DOI: https://doi.org/10.1007/978-3-642-11594-3_6
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