One-dimensional modeling of aquifer contamination using a meshless method

Article Type:
Research/Original Article (بدون رتبه معتبر)
Water is one of the most important and fundamental needs in the lives of all living creatures. Owing to the recent drought around the world and reduction of surface water resources, groundwater resources are gaining more significance. Distribution and spread of contamination in groundwater resources make them unusable and thus aggravate the drought crisis in arid and semi-arid regions. Therefore, it is of utmost importance to protect groundwater resources from the input of pollutants and to reduce the amount of contaminants in them.
Materials and Methods
In this research, the transmission of pollution, identification of transmission and diffusion processes, and its modeling were studied in order to assist the practitioners in adopting appropriate strategies. Also, the Meshless Local Petrov-Galerkin method was used to solve the transmission equation of the porous medium, while moving the least squares was used as its approximation function. For verification purposes, the results of the numerical solution were compared with the exact solution. This comparison indicated the acceptable accuracy of the Meshless Local Petrov-Galerkin method for solving the transmission equation for porous media.
The results of the numerical solution were compared with the calculated values of Agata's exact solution at different times for the one-dimensional equation of pollution in the porous medium. The calculated total error was 0.03, indicating that the Meshless Local Petrov-Galerkin method has an acceptable precision in simulating one-dimensional contamination in the aquifer.
This study showed that the numerical method of Meshless Local Petrov-Galerkin is suitable for modeling the transmission of pollutants in groundwater in one-dimensional mode and has acceptable accuracy.
Journal of Health Sciences and Technology, Volume:2 Issue: 1, Apr 2018
23 to 28  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 1,390,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!