Abstract
Mixed convection in an annulus of large aspect ratio is studied. At an aspect ratio of 100, the effect of wall curvature is minimal, and both the base flow and the stability characteristics approach those of a two-dimensional channel flow. The linearstability results demonstrate that the fully developed flow is unstable in regions of practical interest in an appropriate parameter space. Consequently, commonly assumed steady parallel countercurrent flows in many idealized numerical and analytical studies are unlikely to be observed experimentally.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 683-689 |
| Number of pages | 7 |
| Journal | Journal of Heat Transfer |
| Volume | 111 |
| Issue number | 3 |
| DOIs | |
| State | Published - Aug 1989 |
Keywords
- Flow Instability
- Mixed Convection
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering