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Modeling and simulation of low pressure oil-hydraulic pipeline transients
- Source :
-
Computers & Fluids . Aug2012, Vol. 67, p79-86. 8p. - Publication Year :
- 2012
-
Abstract
- Abstract: In order to predict more accurately the pressure transients accompanying air release and vaporous cavitation inside oil-hydraulic low pressure pipelines, a new method using genetic algorithms (GAs) for parameter identification is described. A mathematical model for pressure and flow transients is presented in which models of vaporous cavitation and dynamic air release and re-solution are incorporated. This model enables the prediction of both the vaporous cavitation and the air bubble volumes in the pipeline during the transients following a sudden cut-off of the flow. The accurate prediction of behavior largely depends on three generally unknown parameters required by the model, namely: the initial air bubble volume in the oil, and the air release and re-solution time constants. Through the use of the GAs, these parameters can be identified. Predicted results and experimental data show close correspondence. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00457930
- Volume :
- 67
- Database :
- Academic Search Index
- Journal :
- Computers & Fluids
- Publication Type :
- Periodical
- Accession number :
- 79653034
- Full Text :
- https://doi.org/10.1016/j.compfluid.2012.07.005