Results 21 to 30 of about 6,583,849 (249)
Propagation of minimality in the supercooled Stefan problem [PDF]
, 2022 Supercooled Stefan problems describe the evolution of the boundary between the solid and liquid phases of a substance, where the liquid is assumed to be cooled below its freezing point.
Sara Svaluto-Ferro +5 more
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Spline-interpolation solution of a plane Stefan problem [PDF]
Iranian Journal of Numerical Analysis and OptimizationWe construct a spline-interpolation solution of the 2D Stefan problem. We reduce it to the set of boundary value problems for analytic functions and integral equations.
Pyotr Ivanshin
doaj +1 more source
Angewandte Chemie, EarlyView.Machine learning has digitalized heterogeneous catalysis from the top of the length scale downward: prediction at the atom and the material is now mature, yet the reactor and the process remain the open frontier. This critical review traces a decade of progress across the full catalytic value chain and asks where the next decade of impact must be won ...
Rafael Larraz, Avelino Corma
wiley +2 more sources
Development of a phase change model for volume-of-fluid method in OpenFOAM [PDF]
Journal of Heat and Mass Transfer Research, 2016 In this present study, volume of fluid method in OpenFOAM open source CFD package will be extended to consider phase change phenomena with modified model due to condensation and boiling processes.
Mohammad Bahreini +2 more
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The nonlocal Stefan problem for quasilinear parabolic equation
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012 In this paper, we deal with free boundary problem with nonlocal boundary condition for quasilinear parabolic equation. For the solutions of the problem apriory estimates of Shauder's type are established.
J. O. Takhirov, R. N. Turaev
doaj +3 more sources
Advanced Engineering Materials, EarlyView.Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa +3 more
wiley +1 more source
Reconstructing the Heat Transfer Coefficient in the Inverse Fractional Stefan Problem
Fractal and FractionalThis paper presents an algorithm for solving the inverse fractional Stefan problem. The considered inverse problem consists of determining the heat transfer coefficient at one of the boundaries of the considered region.
Agata Chmielowska +2 more
doaj +1 more source
, 2020 This is a pre-release of code attachment to the article Semi-analytic benchmark for the Stefan problem - assessing accuracy of enthalpy-based methods co-authored with Ondřej ...
Jiří Malík, Ondřej Souček
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Advanced Functional Materials, EarlyView.Combining field‐effect surface passivation of a narrow‐bandgap tin–lead perovskite by diammonium ions with introducing oleyl‐based amphiphiles to create insulating interface layers between the absorber and the adjacent hole and electron transporting layers increases the open‐circuit voltage to 91.5% of the detailed‐balance limit and enhances the power ...
Vishnu Vijayakumar +18 more
wiley +1 more source