Bouthaina Debabeche^1,2,*, Sonia Cherhabil³

FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.7, pp. 1499-1516, 2024, DOI:10.32604/fdmp.2024.047403

Abstract In this study, the main properties of the hydraulic jump in an asymmetric trapezoidal flume are analyzed experimentally, including the so-called sequent depths, characteristic lengths, and efficiency. In particular, an asymmetric trapezoidal flume with a length of 7 m and a width of 0.304 m is considered, with the bottom of the flume transversely inclined at an angle of m = 0.296 and vertical lateral sides. The corresponding inflow Froude number is allowed to range in the interval (1.40 < F1 < 6.11). The properties of this jump are compared to those of hydraulic jumps More >

Feng Zhao¹, Song-Ping Zhu², Zhi-Rong Zhang¹

CMES-Computer Modeling in Engineering & Sciences, Vol.9, No.3, pp. 273-286, 2005, DOI:10.3970/cmes.2005.009.273

Abstract In this paper, the steady viscous flow around a ship hull with free surface is studied through solving Reynolds Averaged Navier-Stokes (RANS) equations numerically. The RANS solver is based on a cell-centered finite-volume discretization. In our study, the turbulence is modeled through an SST (Shear Stress Transport) k - ω turbulence model in conjunction with the wall function approach for the near-wall simulation. The VOF method is used for the free surface treatment. Calculations for two typical benchmark surface ship models, Wigley and DTMB 5415, are carried out first for the purpose of model validation. The… More >