Simulation of Contaminant Migration Through a Soil Layer Due to an Instantaneous Source

Date

2011-06-01

Author

Çokça, Erdal
Unutmaz, Berna

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

161
views

0
downloads

Analytical and numerical simulation models help civil and environmental engineering students to understand the physical and chemical processes that influence contaminant transport through a saturated soil layer, including advective and dispersive transport as well as sorption. The basic principles for simulation of contaminant migration through a saturated soil were introduced. Using the spreadsheet program MS Excel, based on existing analytical solution for two-dimensional transport of contaminants in a saturated soil layer, concentrations at several coordinates at several times were calculated. A MATLAB code was developed using finite difference approach for numerical solution. The programming steps followed for analytical and numerical solutions were explained. The analytical and numerical solution was compared. An example of the simulation models for the contaminant transport through a saturated soil layer is given. The study shows that the analytical solution and the numerical solution, for the given problem, match in an acceptable range. (c) 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 19: 385-398, 2011; View this article online at wileyonlinelibrary.com; DOI 10.1002/cae.20320

Subject Keywords

General Engineering, General Computer Science, Education

URI

https://hdl.handle.net/11511/48710

Journal

COMPUTER APPLICATIONS IN ENGINEERING EDUCATION

DOI

https://doi.org/10.1002/cae.20320

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Assessment of dynamic response FD algorithms by beam and plate FE computations Alaylioglu, H.; Oral, Süha; Alaylıoğlu, Ayşe (Elsevier BV, 1988-10) Improvement in understanding of the process of direct integration of the equations of motion through numerical dissipation parameter interaction is being regarded as one of the significant achievements of structural dynamics research over the past quarter century. The numerical software fraternity has extended one-step integration algorithms, emphasizing controllable approximation characteristics with respect to such factors as period elongation and amplitude decay. These studies have resulted in setting up...
Investigation of community of inquiry framework in regard to self-regulation, metacognition and motivation KİLİS, SELCAN; Yıldırım, Zahide (Elsevier BV, 2018-11-01) Following theoretical frameworks including social-cognitive theory, constructivism and creating collaborative learning community, this correlational study elucidates the community of inquiry framework in regard to self-regulation, metacognition, and motivation in an online learning setting. Data were collected from 1535 students enrolled to an online Information and Communication Technology-I course offered by the Department of Informatics at a well-known public university. The data were collected online th...
Fast cell determination of the DSMC molecules in multi-stage turbo molecular pump design Sengil, N.; Edis, Fırat Oğuz (Elsevier BV, 2011-06-01) In this study, an existing 2D parallel DSMC solver is modified, to analyze the multi-stage turbomolecular pumps more efficiently. Generally, molecule movements are traced cell-by-cell in DSMC solvers both in structured and unstructured meshes in order to determine which cell the DSMC molecule is positioned in. These calculations require time consuming trigonometric operations. If a nonrectangular physical domain can be converted into a rectangular computational domain using curvilinear coordinates, then it ...
The Contribution of Constructivist Instruction Accompanied by Concept Mapping in Enhancing Pre-service Chemistry Teachers' Conceptual Understanding of Chemistry in the Laboratory Course Aydın, Sevgi; Aydemir, Nurdane; Boz, Yezdan; Cetin-Dindar, Ayla; BEKTAŞ, Oktay (Springer Science and Business Media LLC, 2009-12-01) The present study aimed to evaluate whether a chemistry laboratory course called "Laboratory Experiments in Science Education" based on constructivist instruction accompanied with concept mapping enhanced pre-service chemistry teachers' conceptual understanding. Data were collected from five pre-service chemistry teachers at a university in Ankara by means of a concept test and semi-structured interviews. Results showed that pre-service teachers had some alternative conceptions about chemistry topics. Moreo...
A unifying grid approach for solving potential flows applicable to structured and unstructured grid configurations Cete, A. Ruhsen; Yuekselen, M. Adil; Kaynak, Uenver (Elsevier BV, 2008-01-01) In this study, an efficient numerical method is proposed for unifying the structured and unstructured grid approaches for solving the potential flows. The new method, named as the "alternating cell directions implicit - ACDI", solves for the structured and unstructured grid configurations equally well. The new method in effect applies a line implicit method similar to the Line Gauss Seidel scheme for complex unstructured grids including mixed type quadrilateral and triangle cells. To this end, designated al...

Citation Formats

E. Çokça and B. Unutmaz, “Simulation of Contaminant Migration Through a Soil Layer Due to an Instantaneous Source,” COMPUTER APPLICATIONS IN ENGINEERING EDUCATION, pp. 385–398, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48710.