Electrocap: A Shape Inverse Model for an Electro-Capillarity Process

نویسندگان

  • Jérôme Monnier
  • Patrick Chow-Wing-Bom
چکیده

Electrocap is a freeware modelling an electrified droplet at equilibrium and wetting a solid surface. The model consists to seek the drop shape by minimizing its total energy (capillary, electrostatic and gravitational). To this end, the model is based on the classical shape optimal design method. In this paper, we derive the equations and the shape gradient; we detail the shape optimization algorithm implemented and present some numerical results. The code is based on the public mesh generator Bamg and the public C++ finite element library Rheolef. Key-words: Shape optimal design, C++ library, Electro-Wetting, Energy minimization ∗ [email protected][email protected] in ria -0 01 92 24 5, v er si on 2 27 N ov 2 00 7 Electrocap: Un modèle inverse de forme destiné à l’electro-capillarité Résumé : Electrocap est un logiciel libre d’optimisation de forme modélisant une goutellette electrifiée à l’équilibre et mouillant une surface plane solide. Le modèle consiste à chercher une forme de goutte minimisant son énergie totale (capillaire, electro-statique et gravitationnelle). Dans ce papier, nous présentons les équations, le gradient de forme; nous détaillons le processus d’optimisation implémenté et nous présentons quelques résultats numériques. Le code est basé sur le mailleur Bamg et la bibliothéque éléménts finis C++ Rheolef. Mots-clés : Optimisation de forme, librairie C++, Electro-mouillage, minimisation d’énergie in ria -0 01 92 24 5, v er si on 2 27 N ov 2 00 7

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Precursor film in dynamic wetting, electrowetting, and electro-elasto-capillarity.

Dynamic wetting and electrowetting are explored using molecular dynamics simulations. The propagation of the precursor film (PF) is fast and obeys the power law with respect to time. Against the former studies, we find the PF is no slip and solidlike. As an important application of the PF, the electro-elasto-capillarity, which is a good candidate for drug delivery at the micro- or nanoscale, is...

متن کامل

Numerical Simulation of Nugget Geometry and Temperature Distribution in Resistance Spot Welding

Resistance spot welding is an important manufacturing process in the automotive industry for assembling bodies. The quality and strength of the welds and, by extension, the body is mainly defined by the quality of the weld nuggets. The most effective parameters in this process are sheet material, geometry of electrodes, electrode force, current intensity, welding time and sheet thickness. The p...

متن کامل

Capillary wave propagation during the delamination of graphene by the precursor films in electro-elasto-capillarity

Molecular dynamics simulations were carried out to explore the capillary wave propagation induced by the competition between one upper precursor film (PF) on the graphene and one lower PF on the substrate in electro-elasto-capillarity (EEC). During the wave propagation, the graphene was gradually delaminated from the substrate by the lower PF. The physics of the capillary wave was explored by t...

متن کامل

Experimental investigation, modeling, and optimization of combined electro-(fenton/coagulation/flotation) process: design of experiments and artificial intelligence systems

In this study, a combined electro-(Fenton/coagulation/flotation) (EF/EC/El) process was studied via degradation of Disperse Orange 25 (DO25) organic dye as a case study. Influences of seven operational parameters on the dye removal efficiency (DR%) were measured: initial pH of the solution (pH0), applied voltage between the anode and cathode (V), initial ferrous ion concentration (CFe), initial...

متن کامل

Inverse Kinematics of Gel Robots made of Electro-Active Polymer Gel

This paper proposes an inverse kinematic model for deformable robots made entirely of electro-active polymer gel. The required method is to control higher degrees of freedom than numbers of input. We have been proposed a kinematic and dynamic model of electro-active polymer system and derived a variety of motions of gel robots by applying spatially varying electric fields. However, inverse kine...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006