Results 31 to 40 of about 13,260 (259)

The Grell–Freitas (GF) convection parameterization: recent developments, extensions, and applications [PDF]

Geoscientific Model Development, 2021
Recent developments and options in the GF (Grell and Freitas, 2014; Freitas et al., 2018) convection parameterization are presented. The parameterization has been expanded to a trimodal spectral size to simulate three convection modes: shallow, congestus,
S. R. Freitas, S. R. Freitas, G. A. Grell, H. Li, H. Li   +4 more
doaj   +1 more source

Physical controls of Southern Ocean deep‐convection variability in CMIP5 models and the Kiel Climate Model

Geophysical Research Letters, 2017
Global climate models exhibit large biases in the Southern Ocean. For example, in models Antarctic bottom water is formed mostly through open‐ocean deep convection rather than through shelf convection.
A. Reintges, T. Martin, M. Latif, W. Park   +3 more
doaj   +1 more source

Importance of the variability of hydrographic preconditioning for deep convection in the Gulf of Lion, NW Mediterranean [PDF]

Ocean Science, 2010
We study the variability of hydrographic preconditioning defined as the heat and salt contents in the Ligurian Sea before convection. The stratification is found to reach a maximum in the intermediate layer in December, whose causes and consequences for ...
L. Grignon, D. A. Smeed, H. L. Bryden, K. Schroeder   +3 more
doaj   +1 more source

Deep Mediterranean turbulent convection [PDF]

Europhysics News, 2020
Life in the deep sea requires turbulent mixing and advective transporting water flows for the supply of nutrients. However, because of the harsh environmental constraints in the deep sea, detailed quantitative measurements are scarce. Recent high-resolution measurements demonstrate that the deep Mediterranean Sea waters are far from stagnant, even ...
openaire   +2 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Effect of Stirring on the Defect-Free Filling of Deep Through-Silicon Vias

IEEE Access, 2020
Through-silicon-via (TSV) is an advanced 3D electronic integration technology. In order to achieve the defect-free filling of deep TSV, forced convection is commonly applied during TSV filling process.
Feng Wang, Ximei Liu, Jinzhi Liu
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

Advanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley   +1 more source