00000nam 2200000zi 4500 9.867747 CaOODSP 20241203113645 m o d f cr nn||||||||| 190130s1987 onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/87-17E-PDF Krishnappan, B. G., 1943- author. Can meanders form in laminar flows? / by Bommana G. Krishnappan. Burlington, Ontario : Rivers Reserach Branch, National Water Research Institute, Canada Centre for Inland Waters, [1987] 1 online resource (18 pages, 1 unnumbered page) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 87-17 Cover title. "RRB-87-11." "This paper has been presented to the Canadian Journal of Civil Engineering for publication and the contents are subject to change. This copy is to provide information prior to publication." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Some of the earlier studies on formation of meanders suggest that the turbulence-driven secondary currents that are present in a straight channel with non-circular flow geometry may be responsible for the development of meanders in natural streams. The present study was undertaken to test this hypothesis. Laboratory experiments in mobile boundary channels with glycerine as a flowing medium showed that meanders do form in laminar flows. Since laminar flows are free from such secondary currents it becomes evident from this study that the presence of turbulence is not a necessary condition for the formation of meanders. Therefore, attention should be directed to other mechanisms such as fluvial instability for the explanation of meander formation"--Abstract, page 2. Includes management perspective and abstract in French. Meandering rivers Laminar flow Canada. Environment Canada. National Water Research Institute (Canada). Rivers Research Branch. NWRI contribution ; 87-17. (CaOODSP)9.844121 PDF 1.15 MB https://publications.gc.ca/collections/collection_2019/eccc/En13-5-87-17-eng.pdf