Back to Search
Start Over
Axial slit wall effect on the flow instability and heat transfer in rotating concentric cylinders
- Source :
- Journal of Mechanical Science and Technology. 30:5513-5519
- Publication Year :
- 2016
- Publisher :
- Springer Science and Business Media LLC, 2016.
-
Abstract
- The slit wall effect on the flow instability and heat transfer characteristics in Taylor-Couette flow was numerically studied by changing the rotating Reynolds number and applying the negative temperature gradient. The concentric cylinders with slit wall are seen in many rotating machineries. Six different models with the slit number 0, 6, 9, 12, 15 and 18 were investigated in this study. The results show the axial slit wall enhances the Taylor vortex flow and suppresses the azimuthal variation of wavy Taylor vortex flow. When negative temperature gradient exists, the results show that the heat transfer augmentation appears from laminar Taylor vortex to turbulent Taylor flow regime. The heat transfer enhancement become stronger as increasing the Reynolds number and slit number. The larger slit number model also accelerates the flow transition regardless of the negative temperature gradient or isothermal condition.
- Subjects :
- genetic structures
Taylor–Couette flow
02 engineering and technology
01 natural sciences
010305 fluids & plasmas
Physics::Fluid Dynamics
symbols.namesake
parasitic diseases
0103 physical sciences
natural sciences
Physics
Turbulence
Mechanical Engineering
Heat transfer enhancement
Reynolds number
Laminar flow
Mechanics
021001 nanoscience & nanotechnology
Slit
eye diseases
Vortex
Classical mechanics
Mechanics of Materials
Heat transfer
symbols
sense organs
0210 nano-technology
Subjects
Details
- ISSN :
- 19763824 and 1738494X
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- Journal of Mechanical Science and Technology
- Accession number :
- edsair.doi...........4eff80d26ff003f061dc328d2e7fb5ba