Integral electric current method in 3‐D electromagnetic modeling for large conductivity contrast

2006 ◽  
Author(s):  
Michael S. Zhdanov ◽  
Vladimir I. Dmitriev ◽  
Alexander Gribenko
Keyword(s):  
Electric Current ◽  
Current Method ◽  
Electromagnetic Modeling ◽  
Conductivity Contrast

scholarly journals Penentuan Sub-sub Daerah Aliran Stratified Udara-Air pada Pipa Horisontal Menggunakan Constant Electric Current Method (CECM)

2014 ◽  
Vol 4 (1) ◽  
pp. 49
Author(s):  
Akhmad Zidni Hudaya ◽  
Indarto Indarto ◽  
Deendarlianto Deendarlianto
Keyword(s):  
Electric Current ◽  
Current Method

ABSTRAK Visualisasi dan liquid hold-up aliran stratified udara-air pada pipa horizontal sebagai fungsi waktu (dia. dalam pipa 26,0 mm dan total panjang seksi uji 9,5 m) telah diteliti secara eksperimental. Pada penelitian ini, studi visualisasi dilakukan dari analisa data visual yang dihasilkan kamera video kecepatan tinggi dan perilaku tebal film aliran diteliti dengan mengukur liquid hold-up menggunakan Constant Electric Current Method (CECM). Prinsip dari metode ini didasarkan atas perbedaan konduktivitas pada cairan dan gas. Pada penelitian ini digunakan sensor CECM sebanyak 3 buah dengan jarak aksial antar sensor 215 mm. Hasil penelitian ini menunjukkan bahwa karakteristik gelombang antarmuka yang dihasilkan dari pemprosesan sinyal CECM dan studi visual dapat digunakan untuk menentukan sub-sub daerah aliran stratified . Peta pola aliran stratified Udara-Air pada Pipa Horisontal yang dihasilkan dari penelitian ini dipresentasikan dan dibandingkan dengan peta-peta yang ada dari penelitian-penelitian terdahulu. Kata Kunci : Sub-sub daerah aliran, aliran stratified, CECM, gelombang antarmuka

2D marine controlled-source electromagnetic modeling: Part 2 — The effect of bathymetry

Geophysics ◽  
2007 ◽  
Vol 72 (2) ◽  
pp. WA63-WA71 ◽  
Author(s):  
Yuguo Li ◽  
Steven Constable
Keyword(s):  
Finite Element ◽  
Numerical Modeling ◽  
Data Sets ◽  
Electromagnetic Modeling ◽  
Seafloor Topography ◽  
Transmission Frequency ◽  
Controlled Source ◽  
Magnetic Components ◽  
Marine Csem ◽  
Conductivity Contrast

Marine controlled-source electromagnetic (CSEM) data are strongly affected by bathymetry because of the conductivity contrast between seawater and the crust below the seafloor. We simulate the marine CSEM response to 2D bathymetry using our new finite element (FE) code, and our numerical modeling shows that all electric and magnetic components are influenced by bathymery, but to different extents. Bathymetry effects depend upon transmission frequency, seabed conductivity, seawater depth, transmitter-receiver geometry, and roughness of the seafloor topography. Bathymetry effects clearly have to be take into account to avoid the misinterpretation of marine CSEM data sets.

scholarly journals Preparation of Silica Glass by Pulsed Electric Current Method.

2002 ◽  
Vol 110 (1285) ◽  
pp. 867-869 ◽  
Author(s):  
Manabu KOIDE ◽  
Shinichi TAKEI ◽  
Tomohiro SATO ◽  
Kazumasa MATUSITA
Keyword(s):  
Electric Current ◽  
Silica Glass ◽  
Current Method ◽  
Pulsed Electric Current

219102 Void fraction measurement of bubbly flow with microbubbles by Constant Electric Current Method

2011 ◽  
Vol 2011.17 (0) ◽  
pp. 501-502
Author(s):  
Shin-ichiro UESAWA ◽  
Akiko KANEKO ◽  
Yasumichi NOMURA ◽  
Yutaka ABE
Keyword(s):  
Electric Current ◽  
Void Fraction ◽  
Bubbly Flow ◽  
Current Method ◽  
Fraction Measurement

S0802-2-4 Void fraction measurement of bubbly flow by Constant Electric Current Method

2010 ◽  
Vol 2010.3 (0) ◽  
pp. 161-162
Author(s):  
Shin-ichiro UESAWA ◽  
Akiko KANEKO ◽  
Yasumichi NOMURA ◽  
Yutaka ABE
Keyword(s):  
Electric Current ◽  
Void Fraction ◽  
Bubbly Flow ◽  
Current Method ◽  
Fraction Measurement
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