Development of Highly Accurate Analysis Method for Compressible Fluid Considering Radiation and Ablation
-
- Koizumi Makoto
- Hitachi, Ltd. Power & Industrial Systems R&D Labs.
-
- Urai Hajime
- Hitachi, Ltd. Power & Industrial Systems R&D Labs.
-
- Osita Youichi
- Hitachi, Ltd. Power & Industrial Systems R&D Labs.
-
- Osawa Naoki
- Hitachi, Ltd. Power & Industrial Systems R&D Labs.
-
- Tukushi Masanori
- Japan AE Power Systems Corporation
-
- Yaginuma Noriyuki
- Japan AE Power Systems Corporation
Bibliographic Information
- Other Title
-
- 輻射とアブレーションを考慮した高精度気流解析技術の開発
- フクシャ ト アブレーション オ コウリョシタ コウセイド キリュウ カイセキ ギジュツ ノ カイハツ
Search this article
Abstract
To understand physical phenomena in gas circuit breaker, we developed a highly accurate analysis method for compressible fluid considering arc behavior. The feature of the method is as follows, (1) To suppress numerical oscillation, the product of density and internal energy is treated as unknown valuable of transport energy equation solved by CIP (Constrain of Interpolation Profile) method. (2) To consider the effect of ablation of nozzle wall the rate of evaporation is assumed to be proportion to the difference between the power emission rate of wall and the intensity of radiation in the space. (3) To solve linear equation systems appeared in pressure, electric and radiation fields, we have improved PCG (Preconditioned Conjugate Gradient) method by reduction of unknowns. We have applied the method to an ablation measurement test stand and an interrupter model of gas circuit breaker, and confirmed the calculation results agree with the experimental ones.
Journal
-
- IEEJ Transactions on Power and Energy
-
IEEJ Transactions on Power and Energy 127 (9), 1002-1008, 2007
The Institute of Electrical Engineers of Japan
- Tweet
Details 詳細情報について
-
- CRID
- 1390001204601672448
-
- NII Article ID
- 10019522692
-
- NII Book ID
- AN10136334
-
- ISSN
- 13488147
- 03854213
-
- NDL BIB ID
- 8934701
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed