{"title":"Lattice Boltzmann Simulation of Electric Field in Co-Linear Pulsed Electric Field (PEF) Treatment Chamber","authors":"Kum-Hae Ham, Kyong-Nam Pae, Kyong-Chol Jang","doi":"10.3103/S1068335624600025","DOIUrl":null,"url":null,"abstract":"<p>The treatment efficacy of PEF processing is directly subject to its electric field distribution in the treatment zone. A reliable and efficient model to predict the distribution plays a crucial role for clarifying the treatment mechanism and for improving the treatment effect. A lattice Boltzmann model (LBM) to describe the electric field distribution in a co-linear PEF processing was developed. Based on the assumption that PEF does not cause a time varying magnetic field, the simulation was carried out by using the charge conservation equation. For a two-dimensional LBM, we specified the macroscopic boundary condition for electric potential at high voltage and ground electrodes, and bounce-back boundary condition for electric potential at the insulator. Our model was validated by comparing with previous results based on the finite element method (FEM) for the existing co-linear treatment chambers. We suggested another type of treatment chamber with “holo-elliptical” geometry by which the uniformity of electric field was remarkably improved. Our model encourages further investigation to clear the mechanism of PEF treatment and to design more effective device.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Lebedev Physics Institute","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.3103/S1068335624600025","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The treatment efficacy of PEF processing is directly subject to its electric field distribution in the treatment zone. A reliable and efficient model to predict the distribution plays a crucial role for clarifying the treatment mechanism and for improving the treatment effect. A lattice Boltzmann model (LBM) to describe the electric field distribution in a co-linear PEF processing was developed. Based on the assumption that PEF does not cause a time varying magnetic field, the simulation was carried out by using the charge conservation equation. For a two-dimensional LBM, we specified the macroscopic boundary condition for electric potential at high voltage and ground electrodes, and bounce-back boundary condition for electric potential at the insulator. Our model was validated by comparing with previous results based on the finite element method (FEM) for the existing co-linear treatment chambers. We suggested another type of treatment chamber with “holo-elliptical” geometry by which the uniformity of electric field was remarkably improved. Our model encourages further investigation to clear the mechanism of PEF treatment and to design more effective device.
期刊介绍:
Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.