Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2004
Volume 7
Issue 1
Topic:
Environmental Development
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Bartnik W. , Florek J. , Strużyński A. , Schöberl F. 2004. FLOW VELOCITY FLUCTUATIONS AND TURBULENCE INTENSITY OVER ROUGH BED AND BED COVERED WITH LIGNEOUS WATER PLANTS, EJPAU 7(1), #04.
Available Online: http://www.ejpau.media.pl/volume7/issue1/environment/abs-04.html

FLOW VELOCITY FLUCTUATIONS AND TURBULENCE INTENSITY OVER ROUGH BED AND BED COVERED WITH LIGNEOUS WATER PLANTS

Wojciech Bartnik, Jacek Florek, Andrzej Strużyński, Friedrich Schöberl

 

ABSTRACT



Velocity fluctuations and turbulence of velocity in mountain rivers varys when the flow parameters change from free flow conditions to clogged cross-section. The first part of the paper is devoted to extending the description of turbulence intensity distribution in rough flow conditions. In the second part the effect of growth of ligneous water plants in the bed on turbulence intensity is presented.

Key words: river flow, rough bed , ligneous water plant, velocity turbulence intensity.