RT Journal Article
T1 Interfacial tension measurements using a new axisymmetric drop/bubble shape technique
A1 Cabrerizo Vilchez, M. A
A1 Fernández García, José Ramón
A1 Fernández Rodríguez, M. A
A1 García Rio, Luis
A1 Muñiz Castiñeira, María del Carmen
A1 Núñez González, Cristina
K1 1206.02 Ecuaciones Diferenciales
K1 12 Matemáticas
K1 1206 Análisis Numérico
AB This paper introduces a new mathematical model that is used to compute either the interfacial tension of quiescent axisymmetric pendant/sessile drops and pendant/captive bubbles. This model consists of the Young–Laplace equation, that describes interface shape, together with suitable boundary conditions that guarantee a prescribed volume of drops/bubbles and a fixed position in the capillary. In order to solve the problem numerically, the Young–Laplace equation is discretized by using numerical differentiation and the numerical solutions are obtained applying the well-know Newton method. The paper contains a validation of the new methodology presented for what theoretical bubble/drops are used. Finally, some numerical results are presented for both drops and bubbles of water as well as several surfactant solutions to demonstrate the applicability, versatility and reproducibility of the proposed methodology.
PB RSC Advances
SN 20462069
YR 2019
FD 2019-05-23
LK http://hdl.handle.net/11093/3781
UL http://hdl.handle.net/11093/3781
LA eng
NO RSC Advances, 9(28): 16187-16194 (2019)
NO Ministerio de Economía y Competitividad | Ref. MTM2015-66640-P
DS Investigo
RD 12-dic-2024