Langmuir circulation (LC) is a turbulent upper-ocean process driven by wind and surface waves that contributes significantly to the transport of momentum, heat, and mass in the oceanic surface layer. The authors have previously performed a direct comparison of large-eddy simulations and observations of the upper-ocean response to a wind event with rapid mixed layer deepening. The evolution of s...

The submerged hydraulic jump is a sudden change from the supercritical to subcritical flow, specified by strong turbulence, air entrainment and energy loss. Despite recent studies, characteristics in smooth rough beds, mean velocity flow patterns cavity region of especially case triangular macroroughnesses, are not completely understood. objective this paper was numerically investigate via FLOW...

A prediction model for the turbulent kinetic energy (TKE) induced by tidal-currents is proposed as a function of barotropic velocity only, along with robust method evaluating different parameters involved using Acoustic Doppler Current Profiler (ADCP) measurements from Alderney Race. We find that able to reproduce correctly TKE profiles coefficients correlation on average higher than 0.90 and n...

Results from an explicit simulation of tropical cyclones are presented in this study. The numerical model used in the study is the triply nested movable mesh primitive equation model newly developed by the author. It uses the hydrostatic primitive equations with explicit treatment of cloud microphysics. The integration domain is triply nested by a two-way nesting strategy with the two interior ...

We elucidated the reason why average total kinetic energy (TKE) of fission fragments decreases when excitation fissioning systems increases as indicated by experimental data for neutron-induced events. To explore this problem, we used a method based on four-dimensional Langevin equations have developed. calculated TKE $^{236}$U$^{*}$ and $^{240}$Pu$^{*}$ excited above respective barriers, compa...

Abstract. The increase in the spectral width of an initially monodisperse population cloud droplets homogeneous isotropic turbulence is investigated by applying a finite-difference fluid flow model combined with either Eulerian bin microphysics or Lagrangian particle-based scheme. forced variant so-called linear forcing method that maintains mean turbulent kinetic energy (TKE) and TKE partition...

Large-eddy simulation (LES) is used to investigate how dominant breaking waves in the ocean under hurricane-force winds affect the drag and near-surface airflow turbulence. The LES explicitly resolves the wake turbulence produced by dominant-scale breakers. Effects of unresolved roughness such as short breakers, nonbreaking waves, and sea foam are modeled as the subgrid-scale drag. Compared to ...

This study deals with the experimental characterization of induced flow dynamics by a disk-needle-type plasma actuator driven sinusoidal generator and located in rectangular cross-section burner. Flow was performed using different actuation conditions standoff distances. Experiments were conducted under non-reactive conditions. Electrical carried out. Airflow behavior also analyzed smoke visual...