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Simulation of 2-D Compressible Flows on a Moving Curvilinear Mesh with an Implicit-Explicit Runge-Kutta Method

The purpose of this thesis is to solve unsteady two-dimensional compressible
Navier-Stokes equations for a moving mesh using implicit explicit (IMEX) Runge-
Kutta scheme. The moving mesh is implemented in the equations using Arbitrary
Lagrangian Eulerian (ALE) formulation. The inviscid part of the equation is explicitly
solved using second-order Godunov method, whereas the viscous part is calculated
implicitly.
We simulate subsonic compressible
flow over static NACA-0012 airfoil at different
angle of attacks. Finally, the moving mesh is examined via oscillating the airfoil
between angle of attack = 0 and = 20 harmonically. It is observed that the
numerical solution matches the experimental and numerical results in the literature
to within 20%.

Identiferoai:union.ndltd.org:kaust.edu.sa/oai:repository.kaust.edu.sa:10754/244571
Date07 1900
CreatorsAbuAlSaud, Moataz
ContributorsSamtaney, Ravi, Physical Science and Engineering (PSE) Division, Bisetti, Fabrizio, Khurram, Rooh
Source SetsKing Abdullah University of Science and Technology
LanguageEnglish
Detected LanguageEnglish
TypeThesis

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