The validity of the quasi-static assumption was tested for the case of the leeward cylinder of a pair of parallel cylinders staggered in cross-flow. Static force coefficients were used to predict dynamic force coefficients according to the quasi-static assumption. These predicted values were then compared against actual measured values. / Tests were done for non-dimensional cylinder streamwise spacing, L/d, between 2 and 5, and corresponding cross-stream spacing, T/d, between 0.17 and 1. The range of reduced velocities U/fd, which were studied, was between 15 and 250. / Three regions were identified: one where the quasi-static assumption was always true, one where the quasi-static assumption was never true, and one where the quasi-static assumption improved with increasing U/fd. The experimental data indicates that necessary conditions for the application of the quasi-static assumption are a high U/fd as well as low dC$ sb{ rm L}$/dy and dC$ sb{ rm D}$/dy.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.59876 |
| Date | January 1990 |
| Creators | Sychterz, Piotr Waclaw |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Engineering (Department of Mechanical Engineering.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001170053, proquestno: AAIMM66523, Theses scanned by UMI/ProQuest. |
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