We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A tip-covered vortex generator concept to enhance film cooling on plain and curved surfaces.
- Authors
Hussain, Sadam; He, Kun; Yan, Xin
- Abstract
Traditional film cooling with cylindrical-hole faces two challenges: (1) coolant is mainly concentrated downstream of the cooling hole center, and (2) coolant is easily lifting-off the wall at high blowing ratio conditions. Although the installation of vortex generator (VG) helps to enhance the coolant coverage, it still encounters with the limited cooling effect improvement. To solve these difficulties, this paper presents a new VG design, named tip-covered VG (TCVG), to enhance the film cooling effectiveness on the plain and curved surfaces. To demonstrate the feasibility of this design, numerical simulations are performed between the traditional film cooling with cylindrical-hole (just-hole case), film cooling with traditional VGs (TVG case), and film cooling with tip-covered VG (TCVG case). The results show that, with the TCVG, the film cooling effectiveness can be improved by 25 % and 9 % as compared with the just-hole case and TVG case, respectively.
- Subjects
VORTEX generators; CURVED surfaces; PLAINS; COOLANTS
- Publication
Journal of Mechanical Science & Technology, 2022, Vol 36, Issue 4, p2107
- ISSN
1738-494X
- Publication type
Article
- DOI
10.1007/s12206-022-0344-y