Results 61 to 70 of about 511,748 (344)

Numerical Simulation of Flow around Systems of Circular Profiles with Two Degrees of Freedom Using the Modified LS-STAG Method

Современные информационные технологии и IT-образование
The two-dimensional coupled problem of a low-speed subsonic flow simulation past a system of circular airfoiles with two degrees of freedom is considered.
Valeria Puzikova
doaj   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

Efficient Topology Optimization of Photonic Devices Using Domain Decomposition Finite Element Method

IEEE Photonics Journal
This paper presents a domain decomposition finite element method (DD-FEM) to accelerate topology optimization of photonic devices. In the proposed approach, the structure invariant region is precomputed and transformed into a reduced boundary conditions ...
Fangming He, Taiki Matsuzaki, Akito Iguchi, Yasuhide Tsuji, Takeshi Fujisawa   +4 more
doaj   +1 more source

A Fault Feature Extraction Method of Motor Bearing Using Improved LCD

IEEE Access, 2020
Local characteristic-scale decomposition (LCD) is an adaptive decomposition method for non-stationary and nonlinear time-varying signals. In this paper, kernel mapping is used to replace random mapping in LCD, and a fault feature extraction method based ...
Feng Ding, Xinrui Zhang, Wenfeng Wu, Yihua Wang   +3 more
doaj   +1 more source

An introduction to Multitrace Formulations and Associated Domain Decomposition Solvers [PDF]

, 2015
Multitrace formulations (MTFs) are based on a decomposition of the problem domain into subdomains, and thus domain decomposition solvers are of interest. The fully rigorous mathematical MTF can however be daunting for the non-specialist.
Claeys, X., Dolean, V., Gander, M. J.
core   +4 more sources

Domain Decomposition Methods in Feel++ [PDF]

, 2014
This paper presents our ongoing work on building a versatile domain decomposition methods framework in Feel++ that provides expressivity (e.g. closeness to the mathematical language) and efficiency. We display in particular the capabilities of Feel++ regarding Schwarz (non)overlapping and mortar methods.
Samake, Abdoulaye, Chabannes, Vincent, Picard, Christophe, Prud'Homme, Christophe   +3 more
openaire   +2 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

A hybrid numerical method for multi-domain wave propagation problems

Results in Applied Mathematics
This study introduces a hybrid numerical methodology designed to address multi-domain wave propagation problems. The temporal discretization is achieved using the Houbolt scheme, a finite-difference-based approach known for its robust stability in time ...
Zihui Yan, Xiangran Zheng, Wenzhen Qu, Sheng-Dong Zhao   +3 more
doaj   +1 more source