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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Bas, J. Van Der Linden Ory, Emmanuel Dam, Jacques Arris, S. Tijsseling Pisarenco, Maxim |
| Copyright Year | 2009 |
| Abstract | In this article we propose an efficient method to compute the friction factor of helically corrugated hoses carrying flow at high Reynolds numbers. A comparison between computations of several turbulence models is made with experimental results for corrugation sizes that fall outside the range of validity of the Moody diagram. To do this efficiently we implement quasi-periodicity. Using the appropriate boundary conditions and matching body force, we only need to simulate a single period of the corrugation to find the friction factor for fully developed flow. A second technique is introduced by the construction of an appropriately twisted wedge, which allows us to furthermore reduce the problem by a further dimension while accounting for the Beltrami symmetry that is present in the full three-dimensional problem. We make a detailed analysis of the accuracy and time-saving that this novelty introduces. We show that the swirl inside the flow, which is introduced by the helical boundary, has a positive effect on the friction factor. Furthermore, we give a prediction for which corrugation angles the assumption of axisymmetry is no longer valid. It then has to make place for Beltrami-symmetry if accurate results are required. |
| Sponsorship | Pressure Vessels and Piping |
| Starting Page | 655 |
| Ending Page | 664 |
| Page Count | 10 |
| File Format | |
| ISBN | 9780791843673 |
| DOI | 10.1115/PVP2009-77997 |
| e-ISBN | 9780791838549 |
| Volume Number | Volume 4: Fluid-Structure Interaction |
| Conference Proceedings | ASME 2009 Pressure Vessels and Piping Conference |
| Language | English |
| Publisher Date | 2009-07-26 |
| Publisher Place | Prague, Czech Republic |
| Access Restriction | Subscribed |
| Subject Keyword | Construction Turbulence Friction Computation Accounting Reynolds number Boundary-value problems Dimensions Wedges Flow (dynamics) |
| Content Type | Text |
| Resource Type | Article |
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