caa a22 4500 378901486 CHVBK 20180305123519.0 cr unu---uuuuu 161128e20041201xx s 000 0 eng 10.1515/JNETDY.2004.062 doi (NATIONALLICENCE)gruyter-10.1515/JNETDY.2004.062 Hydrothermal waves and corotating rolls in laterally heated convection in simple liquids [Elektronische Daten] [Carlos Pérez-García, Santiago Madruga, Blas Echebarria, Georgy Lebon, Javier Burguete] The stability of a liquid layer with an undeformable interface open to the atmosphere, subjected to a horizontal temperature gradient, is theoretically analysed. Buoyancy and surface tension forces give rise to a basic flow for any temperature difference applied on the system. Depending on the liquid depth, this basic flow is destabilised either by an oscillatory instability, giving rise to the so-called hydrothermal waves, or by a stationary instability leading to corotating rolls. Oscillatory perturbations are driven by the basic flow and therefore one must distinguish between convective and absolute thresholds. The instability mechanisms as well as the different regimes observed in experiments are discussed. The calculations are performed for a fluid used in recent experiments, namely silicone oil of 0.65 cSt (Pr = 10). In particular, it is shown that two branches of absolute instability exist, which may be related to the two types of hydrothermal waves observed experimentally. © Walter de Gruyter Thermodynamics & statistical physics nationallicence Heat transfer processes nationallicence Pérez-García Carlos Instituto de Física, Universidad de Navarra, Pamplona, Spain. aut Madruga Santiago Instituto de Física, Universidad de Navarra, Pamplona, Spain. aut Echebarria Blas Departament de Física Aplicada, Universitat Politècnica de Catalunya, Barcelona, Spain. aut Lebon Georgy Université de Liège, Institut de Physique B5, Liège, Belgium. aut Burguete Javier Instituto de Física, Universidad de Navarra, Pamplona, Spain. aut Journal of Non-Equilibrium Thermodynamics Walter de Gruyter 29/4(2004-12-01), 377-388 0340-0204 29:4<377 2004 29 jnet https://doi.org/10.1515/JNETDY.2004.062 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/JNETDY.2004.062 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pérez-García Carlos Instituto de Física, Universidad de Navarra, Pamplona, Spain aut NATIONALLICENCE 700 1- Madruga Santiago Instituto de Física, Universidad de Navarra, Pamplona, Spain aut NATIONALLICENCE 700 1- Echebarria Blas Departament de Física Aplicada, Universitat Politècnica de Catalunya, Barcelona, Spain aut NATIONALLICENCE 700 1- Lebon Georgy Université de Liège, Institut de Physique B5, Liège, Belgium aut NATIONALLICENCE 700 1- Burguete Javier Instituto de Física, Universidad de Navarra, Pamplona, Spain aut NATIONALLICENCE 773 0- Journal of Non-Equilibrium Thermodynamics Walter de Gruyter 29/4(2004-12-01), 377-388 0340-0204 29:4<377 2004 29 jnet CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter