混合距離モデルを用いた河床デューンの弱非線形安定解析 WEAKLY NONLINEAR STABILITY ANALYSIS OF FLUVIAL DUNES BY THE USE OF THE MIXING LENGTH TURBULENT MODEL

Access this Article

Search this Article

Author(s)

Abstract

Weakly nonlinear stability analysis of fluvial dunes is performed with the use of the growth rate expansion method incorporated with the multiple scale parturbation technique. Open channel flow is modeled by the mixing length turbulent model. A series of perturbation equations are solved by the use of spectral collocation method with Chebyshev polynomial. The analysis reveals that the dune-flat bed transition is characterized by subcritical bifurcation when the resistant coefficient C<SUP>-</SUP><SUP>1</SUP> is large.

Journal

  • PROCEEDINGS OF HYDRAULIC ENGINEERING

    PROCEEDINGS OF HYDRAULIC ENGINEERING 51, 1021-1026, 2007

    Japan Society of Civil Engineers

Codes

  • NII Article ID (NAID)
    130003842354
  • NII NACSIS-CAT ID (NCID)
    AA12199490
  • Text Lang
    UNK
  • ISSN
    0916-7374
  • NDL Article ID
    026352327
  • NDL Call No.
    YH247-620
  • Data Source
    NDL  J-STAGE 
Page Top