Change search
ReferencesLink to record
Permanent link

Direct link
Instabilities of thermocapillary convection in a half-zone at intermediate Prandtl numbers
KTH, Superseded Departments, Mechanics.ORCID iD: 0000-0003-3336-1462
2001 (English)In: Physics of fluids, ISSN 1070-6631, E-ISSN 1089-7666, Vol. 13, no 4, 807-816 p.Article in journal (Refereed) Published
Abstract [en]

The stability of thermocapillary convection inside a cylindrical liquid bridge is studied using both a direct numerical simulation of the three-dimensional problem and linear stability analysis of the axisymmetric basic state. Previously this has been studied extensively for low and high Prandtl numbers. However, the intermediate range of Prandtl numbers between approximately 0.07 and 0.8 which joins the low and high ranges is quite complicated and has not been studied to the same extent. One striking feature is that the axisymmetric base state is much more stable in this intermediate range than at high or low Prandtl numbers. We identify four different oscillatory modes in this range, which have different qualitative features. Direct numerical simulations have been carried out for representative parameter values, and show that the bifurcations are supercritical.

Place, publisher, year, edition, pages
2001. Vol. 13, no 4, 807-816 p.
Keyword [en]
crystal-growth process, cylindrical liquid bridges, marangoni number, energy stability, model, mechanisms, surface, layers, flow
URN: urn:nbn:se:kth:diva-20436ISI: 000167499400001OAI: diva2:339131
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Amberg, Gustav
By organisation
In the same journal
Physics of fluids

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 28 hits
ReferencesLink to record
Permanent link

Direct link