download0 view184
twitter facebook

공공누리This item is licensed Korea Open Government License

Title
Delayed detached-eddy simulation of vortex breakdown over a 70° delta wing
Author(s)
손미소박수형변융환사정환조금원
Publication Year
2015-08-09
Abstract
To investigate the vortex breakdown over the ONERA70 delta wing at an angle-of-attack of 27°, unsteady simulations were performedusing Reynolds-averaged Navier-Stokes and Spalart-Allmaras delayed detached-eddy simulations. A low-diffusive preconditioned Roescheme with third-order MUSCL interpolation scheme was applied, along with second-order dual-time stepping combined with diagonalizedalternating direction implicit method for unsteady simulation. Vortex breakdown was investigated through an examination oftotal pressure loss, axial velocity, and axial vorticity around the primary vortex. Delayed dtached-eddy simulation provided good agreementwith experimental data and predicted all physical phenomena related to vortex breakdown well.
Keyword
Computational fluid dynamics; Delta wing; Dlayed detached-eddy simulation(DDES); High angle of attack; Reynolds-averaged Navier-Stokes (RANS); Vortex breakdown
Journal Title
Journal of Mechanical Science and Technology
Citation Volume
29
ISSN
1738-494X
Files in This Item:
There are no files associated with this item.
Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14450
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART80702823
Export
RIS (EndNote)
XLS (Excel)
XML

Browse