Results 181 to 190 of about 373,804 (364)
Diffusivity in turbulent fluid containing two dominant scales, and compressible shear layer according to a kinetic theory [PDF]
The solution of the two nonequilibrium-degree kinetic equation was first determined for the effective length scale and turbulence energy for a spatially homogeneous turbulence field with two characteristic length scales, where the source for one family ...
Chung, P. M.
core +1 more source
Physically consistent mesoscale model evaluation in complex terrain
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study introduces a novel approach for evaluating mesoscale atmospheric models in complex terrain by selecting physically consistent grid points and applying height‐based corrections. The method corrects for sensor height and terrain elevation differences between model and observations using a time‐varying lapse rate.
Gaspard Simonet +2 more
wiley +1 more source
Chondrule Dust Rim Growth: Influence of Restructuring Using Molecular Dynamics Simulations
The Astrophysical JournalWe investigate the influence of disruptive collisions on chondrule rim growth, emphasizing the role of kinetic energy in determining the outcomes of these interactions.
Chuchu Xiang +4 more
doaj +1 more source
Computation of turbulent boundary layer flows with an algebraic stress turbulence model [PDF]
An algebraic stress turbulence model is presented, characterized by the following: (1) the eddy viscosity expression is derived from the Reynolds stress turbulence model; (2) the turbulent kinetic energy dissipation rate equation is improved by including
Chen, Yen-Sen, Kim, Sang-Wook
core +1 more source
Friction Shock Absorbers and Reverse Thrust for Fast Multirotor Landing on High‐Speed Vehicles
Journal of Field Robotics, EarlyView.ABSTRACT Typical landing gears of small uninhabited aerial vehicles (UAV) limit their capability to land on vehicles moving at more than 20–50 km/h due to high drag forces, high pitch angles and potentially high relative horizontal velocities. To enable landing at higher speeds, a combination of lightweight friction shock absorbers and reverse thrust ...
Isaac Tunney +2 more
wiley +1 more source
Multispecies Ion Acceleration in the Interaction of Multiple Reconnection Current Sheets
The Astrophysical JournalMagnetic reconnection is an important origin of high-energy multispecies ions in the heliosphere, and the interaction of multiple current sheets in reconnection around the kinetic scale is inevitable because of magnetic convection and braiding.
Z. P. Zhang +6 more
doaj +1 more source
Flamelet Connection to Turbulence Kinetic Energy Dissipation Rate
The turbulence kinetic energy dissipation rate $ε$, from a turbulent combustion computation using either Reynolds-averaged Navier-Stokes (RANS) or large-eddy simulation (LES), is proposed for closure with a sub-grid non-premixed flamelet model.
Sirignano, William A. +2 more
openaire +2 more sources
River Research and Applications, EarlyView.ABSTRACT Accurately predicting open‐channel flow under complex conditions remains a challenge. This study introduces a novel synergetic self‐adaptive data assimilation (DA) framework, using a proportional‐integral‐derivative (PID) controller to dynamically calibrate the bed roughness parameter ks in a shallow‐water equation model (via the momentum ...
M. Almetwally Ahmed, S. Samuel Li
wiley +1 more source