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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Langmuir 10 (1994), S. 4403-4408 
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 207-209 (Feb. 1996), p. 457-460 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 11 (1989), S. 727-737 
    ISSN: 0392-6737
    Keywords: Hydrodynamic stability ; Convection and heat transfer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si presentano qui le previsioni che riguardano l'insorgenza di onde gravitazionali elettrocapillari trasversali nell'interfaccia di due fluidi quando un campo elettrico tangenziale o ortogonale viene imposto all'interfaccia. Particolari applicazioni includono interfacce ariaolio e aria-mercurio.
    Abstract: Резюме В работе делаются предсказания, касающиеся возникновения поперечных гравитационно-электро-капиллярных волн на границе раздела двух жидкостей, когда на границу раздела накладывается либо тангенциальное, либо ортогональное электрическое поле. Рассматриваются некоторые применения к границам раздела воздух-нефть и воздухртуть.
    Notes: Summary Provided here are predictions concerning the onset of transverse gravity-electro-capillary waves at the interface of two fluids when either a tangential or an orthogonal electric field is imposed to the interface. Particular applications include air-oil and air-mercury interfaces.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 11 (1989), S. 1631-1643 
    ISSN: 0392-6737
    Keywords: Hydrodynamic stability ; Convection and heat transfer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Qui sono studiate sia numericamente che analiticamente oscillazioni trasverse di un interfaccia aria-liquido deformabile che non seguono la legge di Laplace-Kelvin. Inoltre si ricerca anche per uno strato di liquido di profondità finita la competizione di questo modo di oscillazione crescente e l'insorgenza della convenzione standard cellulare costante di Bérnard-Marangoni. Si forniscono valori di soglia e notevoli varietà di numeri capillari e di Schmidt (Prandtl) per l'osservazione sperimentale di tale instabilità.
    Abstract: Резюме Численно и аналитически исследуются осцилляции деформируемой границы раздела воздух-жидкость, которые не подчиняются закону Лапласа-Кельвина. Для слоя жидкости конечной глубины мы также исследуем конкуренцию этой моды колебательной неустойчивости и появление стандартной стационарной ячеистой конвенции Бенара-Марангони. Мы определяем пороговые значения и соответствующие области для числа Шмидта (Прандтля) и для капиллярного числа для экспериментального наблюдения этой неустоичнвости.
    Notes: Summary Transverse oscillations of a deformable air-liquid interface not obeying the Laplace-Kelvin law are here studied, both numerically and analytically. Moreover, for a liquid layer of finite depth we also explore the competition of this mode of overstability and the onset of standard steady cellular Bénard-Marangoni convection. We provide threshold values and relevant Schmidt (Prandtl) and capillary number ranges for the experimental observation of this instability.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 11 (1989), S. 1615-1629 
    ISSN: 0392-6737
    Keywords: Hydrodynamic stability ; Convection and heat transfer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto I confini tendono generalmente a stabilizzare uno strato liquido altrimenti instabile soggetto a vincoli termici. Si forniscono qui risultati riguardo il ruolo della dimensione orizzontale finita e della profondità di strato finita per uno strato di liquido soggetto a gradienti di concentrazione dell'agente attivo di superficie quando l'instabilità (sovrastabilità) tende a crescere nelle forme di onde longitudinali o trasverse indotte dall'effetto di Marangoni.
    Abstract: Резюме Границы обычно стабилизируют неустойчивые слои жидкости, на которые наложены термические воздействия. В этой работе анализируется роль конечных горизонтальнхы размеров и конечных размеров по глубине для слоя жидкости при наличии градиентов концентрации поверхностно-активного вещества, когда неустойчивость возникает в форме поперечных или продольных волн, обусловленных эффектом Марангони.
    Notes: Summary Boundaries generally tend to stabilize an otherwise unstable liquid layer subjected to thermal constraints. Here, results are provided about the role of the finite horizontal size and of the finite layer for a liquid layer subjected to gradients of surfactant concentration when instability (overstability) tries to set up in the form of transverse or longitudinal waves induced by the Marangoni effect.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 11 (1989), S. 709-716 
    ISSN: 0392-6737
    Keywords: Hydrodynamic stability ; Convection and heat transfer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si descrive il moto oscillatorio di un interfaccia tra liquido e liquido indotto dall'effetto di Marangoni, cioè la variazione della tensione di superficie con la concentrazione di un tensioattivo nell'interfaccia. Poi si danno, quanto lo smorzamento si attenua, valori di soglia e regioni di parametri per onde longitudinali sostenute (Marangoni-Lucassen) in termini dei coefficienti di trasporto dei due liquidi.
    Abstract: Резюме Осцилляторное движение границы раздела двух жидкостей, индуцированное эффектом Марангони, т.е. изменением поверхностного натяжения с концентрацией поверхностно-активного вещества, описывается, как гармоническое колебание концентрации поверхностно-активного вещества на границе раздела. Затем при исчезающе малом затухании в терминах транспортных коэффициентов двух жидкостей определяются пороговые значения и область параметров для незатухающих продольных волн (Марангони-Лукасена).
    Notes: Summary The oscillatory motion of a liquid-liquid interface induced by the Marangoni effect,i.e. the variation of surface tension with the concentration of a surfactant, is described as the harmonic oscillation of the surfactant concentration at the interface. Then, at vanishing damping, threshold values and parameter regions for sustainedlongitudinal (Marangoni-Lucassen) waves are given in terms of the transport coefficients of the two liquids.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 14 (1992), S. 213-220 
    ISSN: 0392-6737
    Keywords: Hydrodynamic stability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary The Kelvin-Helmholtz interfacial instability of two flowing superposed viscous liquids is described in terms of a dissipative harmonic-oscillator model. The instability threshold corresponds to the vanishing value of the damping coefficient.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 93 (1990), S. 1613-1625 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We consider chemical reactions which at equilibrium have multiple stationary states due to nonidealities of chemical species. When such reactions are included in a simple reaction mechanism open to mass flow, without autocatalysis or feedback steps, there may occur complex dynamics such as relaxation oscillations, as reported earlier for regular solutions. Here we consider both regular solution and ionic species (Debye–Hückel nonideality), show that chemical oscillations may occur arbitrarily close to chemical equilibrium, and trace the topological structure of the complex dynamics of relaxation oscillations, sustained oscillations, stable focus, and stable nodes to the multiplicity of equilibrium states, for stated constraints. Relaxation oscillations occur around an unstable stationary state which, on approach to equilibrium, connects to an unstable equilibrium state. Thus, there is no bifurcation to oscillations on removing the systems from equilibrium. Neither is there a region where linear irreversible thermodynamics is valid close to equilibrium. Earlier work on ionic systems is found to be in error.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Physics Letters A 136 (1989), S. 126-130 
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Physics Letters A 131 (1988), S. 430-432 
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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