Results 61 to 70 of about 617,651 (370)
The core helium flash revisited III. From Pop I to Pop III stars
, 2010 Degenerate ignition of helium in low-mass stars at the end of the red giant branch phase leads to dynamic convection in their helium cores. One-dimensional (1D) stellar modeling of this intrinsically multi-dimensional dynamic event is likely to be ...
Campbell, Simon W. +3 more
core +1 more source
Analysis of instability patterns in non-Boussinesq mixed convection using a direct numerical evaluation of disturbance integrals [PDF]
, 2009 The Fourier integrals representing linearised disturbances arising from an initially localised source are evaluated numerically for natural and mixed convection flows between two differentially heated plates. The corresponding spatio-temporal instability
Batchelor +30 more
core +1 more source
From zonal flow to convection rolls in Rayleigh-B\'enard convection with free-slip plates [PDF]
, 2020 Rayleigh-B\'enard (RB) convection with free-slip plates and horizontally periodic boundary conditions is investigated using direct numerical simulations.
Chong, Kai Leong +4 more
core +3 more sources
Advanced Engineering Materials, EarlyView.This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld +9 more
wiley +1 more source
Testing a non-local 1-equation turbulent convection model: A solar model [PDF]
A&A 689, A292 (2024)Turbulent convection models treat stellar convection more physically than standard mixing-length theory by including non-local effects. We recently successfully applied the Kuhfuss version to convective cores in main sequence stars. Its usefulness for convective envelopes remains to be tested. The solar convective envelope constitutes a viable test bed
arxiv +1 more source
Transformation thermal convection: Cloaking, concentrating, and camouflage
, 2017 Heat can generally transfer via thermal conduction, thermal radiation, and thermal convection. All the existing theories of transformation thermotics and optics can treat thermal conduction and thermal radiation, respectively.
Dai, Gaole, Huang, Jiping, Shang, Jin
core +1 more source
Rotation of the solar convection zone from helioseismology [PDF]
, 2006 Helioseismology has provided very detailed inferences about rotation of the solar interior. Within the convection zone the rotation rate roughly shares the latitudinal variation seen in the surface differential rotation.
Christensen-Dalsgaard +10 more
core +2 more sources
Advanced Engineering Materials, EarlyView.Developing process parameters for the laser‐based Powder Bed Fusion of metals can be a tedious task. Based on melt pool depth, the process parameters are transferable to different laser scan speeds. For this, understanding the melt pool scaling behavior is essential, particularly for materials with high thermal diffusivity, as a change in scaling ...
Markus Döring +2 more
wiley +1 more source
Frontiers in Chemistry, 2019 Transient concentration gradients generated and detected electrochemically in continuous flow microchannels were investigated by numerical simulations and amperometric measurements.
Thomas Abadie +3 more
doaj +1 more source
A Comprehensive Review on the Core Thermal Management Improvement Concepts in Power Electronics
IEEE Access, 2020 A heat sink is a specific type of heat exchanger integrated with heat generating devices - mostly electronics - for the sake of thermal management. In the design procedure of heat sinks, several considerations such as manufacturing cost, reliability ...
Sina Lohrasbi +5 more
doaj +1 more source