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Coriolis generated secondary currents in channels
Luleå tekniska universitet.
1986 (English)In: Journal of Hydraulic Engineering, ISSN 0733-9429, E-ISSN 1943-7900, Vol. 112, no 8, p. 750-767Article in journal (Refereed) Published
Abstract [en]

The effects of rotation on turbulent channel flow are discussed, particularly the influence of the earth 's rotation is analyzed and some of previous literature is reviewed. It is shown that Coriolis-induced secondary currents should be of importance if they have a magnitude of 1% of the downstream velocity. A simplified analysis is used to estimate the relative magnitude of the horizontal secondary velocity at the cross-plane center point for fully-developed flow in a wide channel as a function of Rossby number. Numerical model simulations are used to investigate the influence of the side walls and the magnitude of the secondary velocities for developing flow. The results show that the secondary velocities amount to about 1% of the downstream velocity for rather slowly flowing deep channels

Place, publisher, year, edition, pages
1986. Vol. 112, no 8, p. 750-767
National Category
Water Engineering
Research subject
Water Resources Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-4755DOI: 10.1061/(ASCE)0733-9429(1986)112:8(750)Local ID: 2be3d1b0-a74b-11de-8293-000ea68e967bOAI: oai:DiVA.org:ltu-4755DiVA, id: diva2:977629
Note
Godkänd; 1986; 20090922 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-21Bibliographically approved

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