期刊
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
卷 52, 期 -, 页码 293-304出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijggc.2016.07.006
关键词
Carbon dioxide; Releases from pipeline accidents; Homogeneous relaxation model; Blind validation
类别
资金
- National Grid in connection with the Don Valley Power Project
- European Union's European Energy Programme for Recovery
This paper reports on the further development and validation of CO(2)FOAM, a dedicated computational fluid dynamics solver for the atmospheric dispersion of Carbon Dioxide (CO2) from accidental pipeline releases. The code has been developed within the framework of the open source CFD code OpenFOAM (R) (OpenCFD, 2014). Its earlier version used the homogeneous equilibrium method for fully compressible two-phase flow. Validation of the code against CO2 releases through vertical vent pipes and horizontal shock tubes was previously reported by Wen et al. (2013). In the present study, the homogeneous relaxation model has been implemented as it is more suited to account for the presence of solid CO2 within the releases. For validation, the enhanced CO(2)FOAM has been used to predict CO2 dispersion in a range of full scale tests within the dense phase CO2 PipeLine TRANSportation (COOLTRANS) research programme (Cooper, 2012) funded by National Grid. The test case used in the present study involved a puncture in a buried pipe. The experimental measurements were supplied to the authors after the predictions were completed and submitted to National Grid. Hence, the validation reported here is indeed 'blind'. The validated model has also been used to study the effect of a commercial building located downstream from the release location. (C) 2016 Elsevier Ltd. All rights reserved.
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