Abstract
the method of characteristics (MOC) has undoubtedly been a wonderful bonus for the pressure surge community. Its simplicity is almost too good to believe and, ien used properly, the accuracy of its predictions in practical applications is a great comfort When the method is applied to liquid flows in elastic pipes, these attributes are so robust that they are commonly taken for granted This forum paper explores how far we may stray from "liquid flows in elastic pipes" before reliance on the attributes ceases to be safe. This is done by independent assessments of(i) LI1S terms - i.e. differential terms, (ii) RIIS terms - e.g. friction, mass addition and (iii) the gradients of the characteristics Questions that arc answered include: Is it possible to express MOC equations with truly constant coefficients of 1.IIS terms? Is it possible to show how quasi.steady friction influences wave speed? Is it possible to be confident of reproducing steady flow correctly.
| Original language | English |
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| Title of host publication | BHR Group - 12th International Conference on Pressure Surges, 18-20 November 2015, Dublin, Ireland |
| Place of Publication | s.l. |
| Publisher | BHR Group Limited |
| Pages | 327-341 |
| Number of pages | 15 |
| ISBN (Electronic) | 9781510817180 |
| Publication status | Published - 2016 |
| Event | 12th International Conference on Pressure Surges - Dublin, Ireland Duration: 18 Nov 2015 → 20 Nov 2015 |
Conference
| Conference | 12th International Conference on Pressure Surges |
|---|---|
| Country | Ireland |
| City | Dublin |
| Period | 18/11/15 → 20/11/15 |