Abstract
The generalized kinematic equation for film thickness, taking into account the effect of phase change at the interface, is used to investigate the nonlinear stability of film flow down a vertical wall. The analysis shows that supercritical stability and subcritical instability are both possible for the film flow system. Applications of the result to isothermal, condensate and evaporate film flow show that mass transfer into (away from) the liquid phase will stabilize (destabilize) the film flow. Finally, we find that supercritical filtered waves are always linearly stable with regard to side-band disturbance.
| Original language | English |
|---|---|
| Pages (from-to) | 803-814 |
| Number of pages | 12 |
| Journal | International Journal of Multiphase Flow |
| Volume | 13 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1987 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Physics and Astronomy(all)
- Fluid Flow and Transfer Processes
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Finite-amplitude stability analysis of liquid films down a vertical wall with and without interfacial phase change. / Hwang, Chi-Chuan; Weng, C. I.
In: International Journal of Multiphase Flow, Vol. 13, No. 6, 01.01.1987, p. 803-814.Research output: Contribution to journal › Article
TY - JOUR
T1 - Finite-amplitude stability analysis of liquid films down a vertical wall with and without interfacial phase change
AU - Hwang, Chi-Chuan
AU - Weng, C. I.
PY - 1987/1/1
Y1 - 1987/1/1
N2 - The generalized kinematic equation for film thickness, taking into account the effect of phase change at the interface, is used to investigate the nonlinear stability of film flow down a vertical wall. The analysis shows that supercritical stability and subcritical instability are both possible for the film flow system. Applications of the result to isothermal, condensate and evaporate film flow show that mass transfer into (away from) the liquid phase will stabilize (destabilize) the film flow. Finally, we find that supercritical filtered waves are always linearly stable with regard to side-band disturbance.
AB - The generalized kinematic equation for film thickness, taking into account the effect of phase change at the interface, is used to investigate the nonlinear stability of film flow down a vertical wall. The analysis shows that supercritical stability and subcritical instability are both possible for the film flow system. Applications of the result to isothermal, condensate and evaporate film flow show that mass transfer into (away from) the liquid phase will stabilize (destabilize) the film flow. Finally, we find that supercritical filtered waves are always linearly stable with regard to side-band disturbance.
UR - http://www.scopus.com/inward/record.url?scp=0023453574&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0023453574&partnerID=8YFLogxK
U2 - 10.1016/0301-9322(87)90067-X
DO - 10.1016/0301-9322(87)90067-X
M3 - Article
VL - 13
SP - 803
EP - 814
JO - International Journal of Multiphase Flow
JF - International Journal of Multiphase Flow
SN - 0301-9322
IS - 6
ER -