Abstract
The linear stability of coextrusion of two viscoelastic fluids in a circular pipe is analyzed in the long wave limit. An interfacial instability due to elastic stratification is found. The effects of viscosity ratio, volume ratio and elasticity ratio on this elastic instability are also discussed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 155-175 |
| Number of pages | 21 |
| Journal | Journal of Non-Newtonian Fluid Mechanics |
| Volume | 40 |
| Issue number | 2 |
| DOIs | |
| State | Published - Sep 16 1991 |
| Externally published | Yes |
Keywords
- coextrusion
- interfacial instability
- viscoelastic fluids
ASJC Scopus subject areas
- General Chemical Engineering
- General Materials Science
- Condensed Matter Physics
- Mechanical Engineering
- Applied Mathematics