Theoretical foundation for an electromagnetic two-phase flowmetry
SCIE
SCOPUS
- Title
- Theoretical foundation for an electromagnetic two-phase flowmetry
- Authors
- Ahn, YC; Do Oh, B; Kim, MH
- Date Issued
- 2005-10
- Publisher
- AMER NUCLEAR SOCIETY
- Abstract
- The theory for the current-sensing electromagnetic flowmeter was newly developed. The current-sensing flow-meter can achieve the measurement with a high temporal resolution so that it can be applied to measure the flows with fast transients like two-phase flow. The signal prediction and the calibration of the current-sensing flowmeter in simplified two-phase flow were conducted, and the given calibration process would be an important step toward the calibration for real two-phase flow. The three-dimensional virtual potential distributions for the electrodes of finite size were computed for single-phase flow, annular flow, and modeled slug flow. With the gradient of the virtual potential, weight functions related to each flow pattern were deduced. A flow pattern coefficient f was introduced to simplify the calibration process for two-phase flow and measured with the impedance spectroscopy method. In order to measure the local mean velocity of a developing flow using the electromagnetic flowmeter, a localization parameter X was modeled and compared with experimental data.
- Keywords
- electromagnetic; flowmeter; two-phase flow; calibration parameters; WEIGHT FUNCTION; FLOW METER; INSTRUMENTATION; 2D
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/24400
- DOI
- 10.13182/NT05-A3660
- ISSN
- 0029-5450
- Article Type
- Article
- Citation
- NUCLEAR TECHNOLOGY, vol. 152, no. 1, page. 54 - 70, 2005-10
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- There are no files associated with this item.
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