Accuracy evaluation of unsteady CFD numerical schemes by vortex preservation

• Published in: Computers & fluids Vol. 24; no. 8; pp. 883 - 895
• Main Authors: Davoudzadeh, F., McDonald, H., Thompson, B.E.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 1995; Elsevier Science
• Subjects: Calculations; Computational methods in fluid dynamics; Diffusion; Errors; Exact sciences and technology; Fluid dynamics; Fundamental areas of phenomenology (including applications); Heat convection; Iterative methods; Navier Stokes equations; Numerical methods; Physics; Unsteady flow; Vortex flow; Fluid mechanics; Error estimation; Computational fluid dynamics; Vorticity; Vortex motion; Numerical method; Unsteady flow; Iterative methods; Navier-Stokes equations

Numerical uncertainty is an important but sensitive subject in computational fluid dynamics and there is a need for improved methods to quantify calculation accuracy. A known analytical solution, a Lamb-type vortex unsteady movement in a free stream, is compared to the numerical solutions obtained f...