CFD visualization of second primary vortex structure on a 65-degree delta wing

Kazuhisa Chiba, Shigeru Obayashit, Kazuhiro Nakahashi

Research output: Contribution to conferencePaperpeer-review

4 Citations (Scopus)

Abstract

Numerical simulation has been performed corresponding to recent experiment around delta wings with sharp and blunt leading edges at NASA Langrey Research Center, which indicates the second primary vortex and quantitative Reynolds-number effects. Three one-equation turbulence models are examined on the unstructured hybrid mesh and the modified Spalart-Allmaras turbulence model is found most effective to capture a complex vortex structure. The adaptive mesh refinement method at a vortex center is also applied. Visualization of the computational results suggests that the second primary vortex may be a developing share layer merging to an open separation of the primary vortex. Not only the volume-mesh refinement but also the surface-mesh refinement is found important to capture Reynolds-number effects around a delta wing with a blunt leading edge.

Original languageEnglish
Pages9874-9884
Number of pages11
DOIs
Publication statusPublished - 2004
Event42nd AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, United States
Duration: 2004 Jan 52004 Jan 8

Other

Other42nd AIAA Aerospace Sciences Meeting and Exhibit
CountryUnited States
CityReno, NV
Period04/1/504/1/8

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'CFD visualization of second primary vortex structure on a 65-degree delta wing'. Together they form a unique fingerprint.

Cite this