Assessment of a high-order discontinuous Galerkin method for vortex convection and wave propagation on unstructured meshes

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 161
  • Download : 2
A high-order accurate flow solver based on a discontinuous Galerkin method has been developed for the numerical simulation of vortex convection and wave propagation on unstructured meshes. To assess the performance of the present flow solver, a vortex convection problem in freestream and an acoustic benchmark problem were tested. An airfoil-vortex interaction problem was also simulated by coupling the flow solver with a dynamic mesh adaptation technique. From the mesh resolution test, the present fourth-order discontinuous Galerkin method almost perfectly preserves the vortex and also accurately resolves the acoustic waves on a mesh with an element size of half of characteristic length. It was also observed that the fourth-order method is more than ten times efficient, in terms of the number of degrees of freedom and the elapsed CPU time, compared to the second-order method.
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Issue Date
2013-11
Language
English
Article Type
Article
Keywords

INTERACTION NOISE; SIMULATION; SCHEMES

Citation

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v.27, no.11, pp.3331 - 3346

ISSN
1738-494X
DOI
10.1007/s12206-013-0855-7
URI
http://hdl.handle.net/10203/188600
Appears in Collection
AE-Journal Papers(저널논문)
Files in This Item

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0