Flow Resistance Law in Channels with Flexible Submerged Vegetation

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92 Citations (Scopus)


In this paper, experimental data collected in a straight flume having a bed covered by grasslike vegetation have been used to analyze flow resistance for flexible submerged elements. At first, the measurements are used to test the applicability of Kouwen’s method. Then, a calibration of two coefficients appearing in the semilogarithmic flow resistance equation is carried out. Finally, applying the P-theorem and the incomplete self-similarity condition, a flow resistance equation linking the friction factor with the shear Reynolds number, the depth-vegetation height ratio and the inflection degree is deduced.
Original languageEnglish
Pages (from-to)554-564
Number of pages11
JournalJournal of Hydraulic Engineering
Volume131, N. 7
Publication statusPublished - 2005

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Mechanical Engineering
  • Water Science and Technology

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