Koncz, Viktória and Izsák, Ferenc and Noszticzius, Zoltán and Kály-Kullai, Kristóf (2021) Adaptive moving mesh algorithm based on local reaction rate. HELIYON, 7 (1). ISSN 2405-8440
|
Text
1-s2.0-S2405844020326840-main (1).pdf Download (642kB) | Preview |
Abstract
An empirical mesh adaption algorithm is introduced for modeling one-dimensional reaction-diffusion systems with large moving gradients. Our new algorithm is based on the revelation, that in reaction-diffusion systems the high moving concentration gradients appear nearby to the region where the rate of reaction is maximal, thus the local reaction rate can be used to control the mesh adaption. We found, that the main advantage of such a method is its simplicity and easy implementation. As an example we study an acid-base diode, where large moving gradients appear. The mathematical model of the diode contains several parabolic PDEs, coupled with one elliptic PDE. An r-refinement technique is used and attached to the commercial finite element solver COMSOL. We investigated the time-dependent salt effects of the diode with our developed algorithm. Our mesh adaption method is advantageous for modeling of any reaction-diffusion systems with localized high concentration gradients.
Item Type: | Article |
---|---|
Subjects: | Q Science / természettudomány > QA Mathematics / matematika > QA76 Computer software / programozás Q Science / természettudomány > QD Chemistry / kémia > QD02 Physical chemistry / fizikai kémia |
Depositing User: | Ferenc Izsák |
Date Deposited: | 26 Mar 2021 12:26 |
Last Modified: | 03 Apr 2023 07:11 |
URI: | http://real.mtak.hu/id/eprint/123026 |
Actions (login required)
![]() |
Edit Item |