Numerical simulations of capsule deformation in a combined shear flow and DC electric field
نویسندگان
چکیده
In this work a numerical method for fully three dimensional simulations of capsules in the electrohydrodynamic regime is proposed. A quasi-steady dual time-stepping scheme allows iterative computation capsule's fluid velocity using multigrid lattice Boltzmann at each time step. The elasticity computed linear finite element and membrane's bending resistance from Helfrich energy. immersed interface (IIM) used to compute electric field arising due electrical properties interior fluid, exterior membrane. structure interaction facilitated through boundary (IBM), which coupled IIM least squares interpolation between control points Lagrangian nodes IBM. validated by comparing results analytical solutions previously published studies. then study deformation combined shear flow DC various membrane conductances, capacitances, conductivity ratios. For nonconducting membranes distribution forces capsule inclination angle result complex equilibrium dynamics not reported neutral capsules.
منابع مشابه
Deformation of a Capsule in a Power-Law Shear Flow
An immersed boundary-lattice Boltzmann method is developed for fluid-structure interactions involving non-Newtonian fluids (e.g., power-law fluid). In this method, the flexible structure (e.g., capsule) dynamics and the fluid dynamics are coupled by using the immersed boundary method. The incompressible viscous power-law fluid motion is obtained by solving the lattice Boltzmann equation. The no...
متن کاملEffect of Radial Electric Field Shear on Tokamak Transport: Flow Shear and Magnetic Field Scaling
متن کامل
a study of relationship between knowledge sharing and organizational agility among personnel in esfahan power electric distribution company
پژوهش حاضر به بررسی رابطه بین تسهیم دانش و چابکی سازمانی در شرکت توزیع برق استان اصفهان پرداخته است . ابزار سنجش در این پژوهش پرسشنامه می باشد . به منظور سنجش متغیر تسهیم دانش از پرسشنامه وانگ و وانگ و جهت سنجش چابکی سازمانی از پرسشنامه چاربونیر استفاده شده است . هدف پژوهش حاضر تحلیل رابطه میان تسهیم دانش و چابکی سازمانی از دید کارکنان شرکت توزیع برق استان اصفهان می باشد . جامعه آماری این پژوه...
15 صفحه اولNumerical Simulation of Blood Flow Mixed with Magnetic Nanoparticles under the Influence of AC and DC Magnetic Field
Nanoparticles combined with magnetic fields are one of the most important research areas in the field of biomedical engineering. Direct Current (DC) magnetic and Alternative Current (AC) magnetic fields are often used for controlling nanoparticles. It is also used for hyperthermia treatment. The purpose of the current study is to investigate the effect of DC and AC magnetic field on nanoparticl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2022
ISSN: ['1090-2716', '0021-9991']
DOI: https://doi.org/10.1016/j.jcp.2022.111223