A Dynamic Model for Particle-solidification Front Interactions PDF Download
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Author: Justin Wayne Garvin
Publisher:
ISBN:
Category :
Languages : en
Pages : 212
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Book Description
Author: Justin Wayne Garvin
Publisher:
ISBN:
Category :
Languages : en
Pages : 212
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 48
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Book Description
1) Developed a multiscale numerical approach to solve particle-solidification front problems in a general manner. 2) Model can be generalized to solve a variety of problems involving interacting interfaces. 3) First to look at the physics from a nonlinear dynamics point-of-view (i.e. phase-space point of view). 4) Model captures essential physics that past research has neglected.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
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Book Description
The development of the solidified microstructure in metal-matrix composites depends on complex interactions between non-planar solidification fronts and multiple particles. The problem is multiscale in nature; the motion of the particle (under the action of a nano-scale disjoining pressure force and a micro-scale viscous drag force) is dynamically coupled with the developing solidification front morphology, which is dependent on a variety of thermal conditions. Using computational techniques discussed in parts I and II, this paper seeks to describe the complicated nonlinear parametric dependencies of the phenomenon. The effects of four of the most important parameters in the particle-solidification front interaction are investigated, i.e. the Hamaker constant, the particle size, the thermal conductivity ratio of the particle to the melt, and the solid-liquid interfacial free energy. By performing simulations using the multiscale approach the dependencies of the critical velocity on these four parameters is clarified.
Author:
Publisher:
ISBN:
Category : Combustion
Languages : en
Pages : 682
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Book Description
Author: József Gyulai
Publisher: Trans Tech Publications
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 532
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Book Description
This 3rd Conference on Materials Science, Testing and Informatics provided an invaluable forum for discussions on Functional Materials and Technologies for the New Millennium.
Author: Michel Rappaz
Publisher: Wiley-TMS
ISBN:
Category : Science
Languages : en
Pages : 436
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Book Description
Papers from a March 2004 symposium describe recent work in solidification processes and microstructures in the areas of mushy zone dynamics, rapid solidification, and phase field modeling. Some specific topics include kinetics of dendritic mushy zones, anisotropy effects in lamellar eutectic growth, network modeling of liquid metal transport in solidifying aluminum alloys, and the topology of coarsened microstructures. Other topics include diffuse solid-liquid interfaces and solute trapping, phase selection transitions during undercooled melt solidification, dendritic growth in confined spaces, the influence of foreign particles in the formation of polycrystalline solidification patterns, and a cellular automaton for growth of solutal dendrites. Annotation : 2004 Book News, Inc., Portland, OR (booknews.com).
Author: Endao Han
Publisher: Springer Nature
ISBN: 3030383482
Category : Science
Languages : en
Pages : 102
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Book Description
This thesis demonstrates the first use of high-speed ultrasound imaging to non-invasively probe how the interior of a dense suspension responds to impact. Suspensions of small solid particles in a simple liquid can generate a rich set of dynamic phenomena that are of fundamental scientific interest because they do not conform to the typical behavior expected of either solids or liquids. Most remarkable is the highly counter-intuitive ability of concentrated suspensions to strongly thicken and even solidify when sheared or impacted. The understanding of the mechanism driving this solidification is, however, still limited, especially for the important transient stage while the response develops as a function of time. In this thesis, high-speed ultrasound imaging is introduced to track, for the first time, the transition from the flowing to the solidified state and directly observe the shock-like shear fronts that accompany this transition. A model is developed that agrees quantitatively with the experimental measurements. The combination of imaging techniques, experimental design, and modeling in this thesis represents a major breakthrough for the understanding of the dynamic response of dense suspensions, with important implications for a wide range of applications ranging from the handling of slurries to additive manufacturing.
Author: Yi Yang
Publisher:
ISBN:
Category : Solidification
Languages : en
Pages : 272
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Book Description
Author: Sunggyu Lee
Publisher: Taylor & Francis US
ISBN: 9780824755584
Category : Science
Languages : en
Pages : 720
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Book Description
Collecting information of vital interest to chemical, polymer, mechanical, electrical, and civil engineers, as well as chemists and chemical researchers, this "Encyclopedia "supplies nearly 350 articles on current design, engineering, science, and manufacturing practices-offering expertly written articles on technologies at the forefront of the field to maximize and enhance the research and production phases of current and emerging chemical manufacturing practices and techniques.
Author: Peter Ehrhard
Publisher: Springer Science & Business Media
ISBN: 940159807X
Category : Science
Languages : en
Pages : 272
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Book Description
Crystal growth, casting, soldering, welding, high-energy surface treatment, nuclear safety systems and geophysical flows are just a few examples where solidification and convection occur together. These processes are interactive on micro- and macroscales: flow affects the distribution of heat and species and hence the freezing process, while solidification evolves flow boundaries, as in crusting, for example, and hence can radically alter the convection. Mathematical modellers, experimentalists and applied scientists were invited to this colloquium with the aim of consolidating our understanding of such interactions, of identifying key outstanding issues, and of developing new approaches in this important area of fundamental research. Both invited and contributed papers focus on both fundamental and technologically relevant problems.
