Results 251 to 260 of about 21,073,531 (290)
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A variational phase field method for curve smoothing
Journal of Computational Physics, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liyong Zhu +3 more
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Phase Contrast Method for Measuring Ultrasonic Fields
IEEE Transactions on Instrumentation and Measurement, 2006Pulsed acoustic waves in water generated by ultrasonic transducers with power levels in the medical diagnostic range are characterized by analyzing the optical diffraction patterns of short laser pulses due to the pressure waves to be analyzed. The diffracted laser light is filtered in the Fourier plane of an optical system and projected onto a charge ...
Erwin K. Reichel, Bernhard G. Zagar
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Semisharp Phase Field Method for Quantitative Phase Change Simulations
Physical Review Letters, 2003The standard phase field model for simulation of phase change requires an asymptotic analysis in a vanishing interface width, in order to connect the model parameters to the sharp interface parameters, which has hampered the quantitative usefulness of the method. In this Letter the method is simplified to the point that the relevant reduced problem can
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Phase-Field Method for 2D Dendritic Growth
2004The phase field method is used to model the free dendritic growth into undercooled melt in 2D. The pair of two nonlinear reaction-diffusion equations – for the temperature and for the phase-field function – are solved numerically by using the finite element method in space.
Vladimir Slavov +2 more
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A brief introduction to phase field method
AIP Conference Proceedings, 2010In this tutorial paper we will give a brief introduction of phase field method as a mathematical tool for describing interfaces and their motion. This method was originally developed as a model of solidification, which enabled us to simulate complicated structures like dendritic crystals easily.
Ryo Kobayashi +3 more
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Bi-Velocity Phase Field Method
Defect and Diffusion Forum, 2013In this paper we couple the bi-velocity with the phase field method. It deals with: (1) the different mobility of the components in the two-phase zone; (2) nonzero steps of molar volumes for each component from phase to phase and (3) the composition dependent interdiffusion coefficients.
Bartek Wierzba +3 more
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Method for reconstruction of the phase of an optical field
Soviet Journal of Quantum Electronics, 1989A description is given of a method for reconstruction of the optical field from two measured distributions of the intensity in the spatial spectrum before and after small changes in the size of a stop. Two algorithms implementing this method are proposed and their stability is investigated.
V V Kotlyar, Aleksei N Malov
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Coherent Precipitation — Phase Field Method
2005Phase transformation is still the most efficient and effective way to produce various microstructures at mesoscales, and to control their evolution over time. In crystalline solids, phase transformations are usually accompanied by coherency strain generated by lattice misfit between coexisting phases.
C. Shen, Y. Wang
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The Phase-Field Method in Optimal Design
2006We describe the phase-field method, a new approach to optimal design originally introduced in Bourdin and Chambolle (2000, 2003). It is based on the penalization of the variation of the properties of the designs, and its variational approximation (in the sense of Г-convergence.
Blaise Bourdin, Antonin Chambolle
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From classical thermodynamics to phase-field method
Progress in Materials Science, 2022Yuhong Zhao, Long-Qing Chen
exaly