Propagation of aggrading sediment fronts in a laboratory flume
نویسندگان
چکیده
منابع مشابه
Gravity wave turbulence in a laboratory flume.
We present an experimental study of the statistics of surface gravity wave turbulence in a flume of a horizontal size 12 x 6 m. For a wide range of amplitudes the wave energy spectrum was found to scale as Eomega approximately omega(-nu) in a frequency range of up to one decade. However, nu appears to be nonuniversal: it depends on the wave intensity and ranges from about 6 to 4. We discuss our...
متن کاملGravity surface wave turbulence in a laboratory flume
We present experimental results for water wave turbulence excited by piston-like programmed wavemakers in a water flume with dimensions 6 × 12 × 1.5 meters. Our main finding is that for a wide range of excitation amplitudes the energy spectrum has a power-law scaling, Eω ∼ ω−ν . These scalings were achieved in up to one-decade wide frequency range, which is significantly wider than the range av...
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Alternate bars were formed by sediment transport in a flume with Froude-modelled flow and relative roughness characteristic of gravel-boulder channels with steep slopes. The flume (0.3 m wide x 7.5 m long) was filled with a sand-gravel mixture, which was also fed into the top of the flume at a constant rate under constant discharge. Channel slope was set at 0.03. Initially, coarse particles acc...
متن کاملCoupling of Boussinesq and Sediment Transport Model in a Wave Flume
1Member of JSCE, M. Eng., Ocean Engineering Study Program, Faculty of Engineering, Hasanuddin University (Jl. P. Kemerdekaan km. 10, Makassar 90245, Indonesia) 2Member of JSCE, M. Eng., Graduate School of Engineering, Tohoku University (6-6-11-1110 Aoba Aramaki Aoba-ku, Sendai 980-8579, Japan) 3Fellow of JSCE, Professor, Graduate School of Engineering, Tohoku University (6-6-11-1110 Aoba Aramak...
متن کاملPropagation and structure of planar streamer fronts
Streamers are a mode of dielectric breakdown of a gas in a strong electric field: A sharp nonlinear ionization wave propagates into a nonionized gas, leaving a nonequilibrium plasma behind. The ionization avalanche in the tip of the wave is due to free electrons being accelerated in the strong field and ionizing the gas by impact. This chain reaction deeper in the wave is suppressed by the gene...
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ژورنال
عنوان ژورنال: E3S Web of Conferences
سال: 2018
ISSN: 2267-1242
DOI: 10.1051/e3sconf/20184005055