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Issue 9 (2) 2010 pp. 25–34

Adam Paweł Kozioł

TEMPORAL AND SPATIAL MACROSCALE OF TURBULENCE IN A COMPOUND CHANNEL WITH TREES ON FLOOD PLAINS

Keywords: open channel, compound channel, turbulence, eddy, measurements
Abstract: Investigations of the time and spatial macro-scale of the present paper are based on the measurements of instantaneous velocities in a two-stage trapezoidal channel under five various tests in the channel. The results of calculations of macro-scale of turbulence were showed for the main channel and floodplains with trees and without. These investigations have shown the following: the values of time macro-scale have changed in range since 0.1 to 1.2 s; in all five tests the distributions of the sizes of the eddies reveal stable regularity; the relative length of eddies are bigger on the floodplains and achieve value of 0.1 to 2.5 of the flow depths on the flood plains, whereas in the main channel the sizes of largest eddies do not exceed the value of 1.2 of the total water depth. The largest lengths of eddies were affirmed on the floodplains in vicinity of the main channel in zone of interaction. The smallest eddies are over the bottom of the main channel.
pub/9_2_25.pdf Full text available in in Adobe Acrobat format:
http://www.formatiocircumiectus.actapol.net/volume9/issue2/9_2_25.pdf

For citation:

MLA Kozioł, Adam Paweł. "TEMPORAL AND SPATIAL MACROSCALE OF TURBULENCE IN A COMPOUND CHANNEL WITH TREES ON FLOOD PLAINS." Acta Sci.Pol. Form. Cir. 9.2 (2010): 25–34.
APA (2010). . Acta Sci.Pol. Form. Cir. 9 (2), 25–34
ISO 690 KOZIOł, Adam Paweł. TEMPORAL AND SPATIAL MACROSCALE OF TURBULENCE IN A COMPOUND CHANNEL WITH TREES ON FLOOD PLAINS. Acta Sci.Pol. Form. Cir., 2010, 9.2: 25–34.
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Streszczenie w języku polskim:
http://www.formatiocircumiectus.actapol.net/tom9/zeszyt2/abstrakt-25.html