ON THE FINITE-DIFFERENCE 2-D MODELING OF ELECTRO MAGNETIC FIELD IN THE GEOPHYSICAL PROBLEMS AND IMPEDANCE CALCULATE

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DABBAGH MOHAMMAD EBRAHIMI; MESHINCHI ASL MIRSATTAR; SIAHKOHI HAMID REZA; GACHPAZAN MORTEZA

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Journal: JOURNAL OF THE EARTH Year:2012 | Volume:7 | Issue:24 Page(s): 47-66

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Title

ON THE FINITE-DIFFERENCE 2-D MODELING OF ELECTRO MAGNETIC FIELD IN THE GEOPHYSICAL PROBLEMS AND IMPEDANCE CALCULATE

Author(s)

DABBAGH MOHAMMAD EBRAHIMI | MESHINCHI ASL MIRSATTAR | SIAHKOHI HAMID REZA | GACHPAZAN MORTEZA | Issue Writer Certificate

Keywords

FD METHODQ2

TWO DIMENSIONALQ2

ELECTROMAGNETIC FIELDQ2

GEOPHYSICAL EXPLORATIONQ2

Abstract

In the present work, we tried to find linear relations with suitable approximation for Maxwell functions needed for the examination of electromagnetic waves by simulation of a specified region. Then, by solving these functions, unknown functions such as distribution of electric and magnetic fields resulted from ELECTROMAGNETIC FIELDs in TWO DIMENSIONAL environments including bulk anomalies are prone to be solved. For these modeling, an environment with specific dimensions and nature is needed. This environment is formed indexing regularly in two-dimensional modeling. In this media the distances between points and geometrical structure are completely specified. Therefore, electric and magnetic vectors are the unknown quantities in all points of the lattice and their amounts are dependent to the geometry and nature of the environment. Different results could be deduced from these findings.FDTD method is used for solving the analytical equations. This method is used for solving analytical equations and calculating impedance in one- and two-dimensional situations. Moreover, Neumann and Drichlet absorbing boundary conditions were used to discuss ELECTROMAGNETIC FIELD results in these boundaries. This numerical method led us to satisfactory results such as solving the problems existing in abnormal structures which are one of the most important problems in GEOPHYSICAL EXPLORATIONs. Time parameter and determination of linear or non-linear changes occurred in ELECTROMAGNETIC FIELD in the frequency domain are another worry which is solved in our numerical method.Finally, the simulated results obtained from solving two-dimensional differential Maxwells and wave’s equations in homogeneous and abnormal environments by using FD METHOD in one- and two-dimensions were recorded for each sample. Comparison of the results obtained from the two above method, revealed acceptable operation and good behavior of the simulated system.

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APA: Copy

DABBAGH, MOHAMMAD EBRAHIMI, MESHINCHI ASL, MIRSATTAR, SIAHKOHI, HAMID REZA, & GACHPAZAN, MORTEZA. (2012). ON THE FINITE-DIFFERENCE 2-D MODELING OF ELECTRO MAGNETIC FIELD IN THE GEOPHYSICAL PROBLEMS AND IMPEDANCE CALCULATE. JOURNAL OF THE EARTH, 7(24), 47-66. SID. https://sid.ir/paper/192998/en

Vancouver: Copy

DABBAGH MOHAMMAD EBRAHIMI, MESHINCHI ASL MIRSATTAR, SIAHKOHI HAMID REZA, GACHPAZAN MORTEZA. ON THE FINITE-DIFFERENCE 2-D MODELING OF ELECTRO MAGNETIC FIELD IN THE GEOPHYSICAL PROBLEMS AND IMPEDANCE CALCULATE. JOURNAL OF THE EARTH[Internet]. 2012;7(24):47-66. Available from: https://sid.ir/paper/192998/en

IEEE: Copy

MOHAMMAD EBRAHIMI DABBAGH, MIRSATTAR MESHINCHI ASL, HAMID REZA SIAHKOHI, and MORTEZA GACHPAZAN, “ON THE FINITE-DIFFERENCE 2-D MODELING OF ELECTRO MAGNETIC FIELD IN THE GEOPHYSICAL PROBLEMS AND IMPEDANCE CALCULATE,” JOURNAL OF THE EARTH, vol. 7, no. 24, pp. 47–66, 2012, [Online]. Available: https://sid.ir/paper/192998/en

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