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Effect of delta wing ’ s leading edge geometry to vortex breakdown
| Content Provider | Semantic Scholar |
|---|---|
| Author | Srigrarom, Sutthiphong |
| Abstract | This paper studies the effect of delta wing's leading edge geometry (sharpness and bevel angle) to the vortex breakdown. At the apex, the flow separates and forms apex vortices, which may breakdown if the wing is at high angle of attack. Preliminary studies reveal that the initial circulation and/or swirl of the apex vortices are mostly created at the wing's apex vicinity. This initial circulation is the control parameter of vortex breakdown, and it is changed significantly by the wing's leading edge geometry. Here we study the leading edge sharpness and the bevel angle effects by means of flow visualization. For curvature effect, we compare two delta wings with sharp and rounded leading edges. The delta wing with sharp leading edge results in stronger apex vortices' initial circulation, and that the consequent vortex breakdown happens earlier than the rounded one. For bevel angle effect, we flip the delta wing with sharp leading edge vertically. When the delta wing is flipped, the apex vortices bifurcate into smaller vortices. We label these vortices as: primary, secondary and tertiary vortices. These vortices are convected downstream without breaking down. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.docum-enter.com/get/yot9ewpUa0__gdP1EUN0eLgdw1yruzh_my4N3KwrdJM,/effect-of-delta-wing-leading-edge-paper-ready.pdf |
| Alternate Webpage(s) | http://web.aeromech.usyd.edu.au/15afmc/proceedings/papers/AFMC00042.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
