The Coupling of Tracked and Interior Waves in a Front Tracking Scheme, (9999)
Glimm,J., McBryan,O., Plohr,B., Yaniv,S.
Front tracking is a method for numerical solution of hydrodynamical problems whose basic element is a system of moving curves (i.e. the front). Each curve represents a physical wave. For gas...
Front Tracking and Two Dimensional Riemann Problems: A Conference Report. (9999)
Glimm,J., Klingenberg,C., McBryan,O., Plohr,B., Sharp,D.
A substantial improvement in resolution has been achieved for the computation of jump discontinuities in gas dynamics using the method of front tracking. The essential feature of this method is that...
Transverse Magnetic Defect-Modes in Two-Dimensional Triangular (2004)
We present a numerical study of the localized transverse magnetic defect modes in a two-dimensional, triangular-lattice photonic crystal. The sample consists of an array of circular, air-cylinders in...
Prediction of a surface magnetic moment in alpha-uranium (2003)
Stojic, N., Davenport, J. W., Komelj, M., Glimm, J.
Recently, there has been an increased interest in first-principles calculations of the actinides as well as in finding the new materials which display surface magnetism. We predict the existence of a...
A Three-Dimensional Front Tracking Algorithm for Etching and Deposition Processes (2002)
Y. Song, W. Chui, J. Glimm, B. Lindquist, E. M. Sparrow, R. D. Cess, ...
Z, Chemical etching of silicon: II. The system HF, HN03, H20, and HC2H30, J. Electrochem. Soc., 107 (1960), p. 108. [71] D. S. Ross, Evolution of material boundaries under ion bombardment, J....
A Numerical Method for Two Phase Flow with an Unstable Interface, (2002)
Glimm,J., Marchesin,D., McBryan,O.
Sponsored in part by Grants NSF-DMR77-04105 and EY-76-C-02-3077.
Unstable Fingers in Two Phase Flow, (2002)
Glimm,J., Marchesin,D., McBryan,O.
Sponsored in part by grant NSF-DMR77-04105.
Front Tracking for Hyperbolic Systems, (2002)
Glimm,J., Isaacson,E., Marchesin,D., McBryan,O.
Prepared in cooperation with Courant Inst., New York, NY. Sponsored in part by Grants NSF-PHY78-08066 and NSF-DMR77-04105.
A Critical Analysis of Rayleigh-Taylor Growth Rates (1999)
J. Glimm, J. W. Grove, X. L. Li, D. H. Sharp
this paper is to begin a systematic analysis of causes of these discrepancies. To do this, we summarize the results of previous RayleighTaylor instability studies, identify potential sensitive...
J. Glimm, D. Saltz, D. H. Sharp
this paper, we indicate how our original two-phase flow formulation can be extended to a broader class of interface instability problems.
A Study of Chaos and Mixing in Rayleigh-Taylor and Richtmyer-Meshkov Unstable Interfaces. (1998)
Gardner,C. L., Glimm,J., Grove,J., McBryan,O., Menikoff,R.
Instabilities of fluid interfaces give rise to entrainment and to a chaotic mixing layer. This report has three purposes. The authors discuss the general features of such chaotic mixing layers,...
The Dynamics of Bubble Growth for Rayleigh-Taylor Unstable Interfaces. (1998)
Gardner,C. L., Glimm,J., McBryan,O., Menikoff,R., Sharp,D.
A statistical model is analyzed for the growth of bubbles in a Rayleigh-Taylor unstable interface. The model is compared to solutions of the full Euler equations for compressible two phase flow,...
Diffraction Patterns and Vortex Rollup. (1998)
The three main developments concern: Riemann problems and nonlinear wave interactions for real materials, including material strength properties; Riemann problems and chaotic mixing for conversation...
Integrated Intelligent Modeling, Design and Control of Crystal Growth Processes (1998)
Prasad, V., Dudley, M., Flaherty, J. E., Gevelber, M., Glimm, J.
Growth of single crystals is the critical beginning step for electronic, opto-electronic, MEMS and many other devices. This MURI program took an integrated approach towards modeling, design and...
Two-Pressure Two-Phase Flow (1998)
J. Glimm, D. Saltz, D. H. Sharp
this paper, we present three new results. The first is a new closure theory for all of the interface averages that couple the individual phases, generalizing a previous result for the average...
Wave Fronts For Hamilton-Jacobi Equations: The General Theory For Riemann Solutions In ... (1998)
J. Glimm, H. C. Kranzer, D. Tan, F. M. Tangerman
The Hamilton-Jacobi equation describes the dynamics of a hypersurface in R n . This equation is a nonlinear conservation law and thus has discontinuous solutions. The dependent variable is a surface...
A Parallel Algorithm For Multizone, Multiphase Systems With Application To Crystal Growth (1997)
W. K. Chui, J. Glimm, F. M. Tangerman, H. Zhang, V. Prasad
Materials processing systems, such as the Czochralski crystal growth system, are often characterized by the presence of a number of distinct materials and phases with significantly different...
Front Tracking Simulations Of Ion Deposition And Resputtering (1997)
J. Glimm, S. R. Simanca, D. Tan, F. M. Tangerman, G. Vanderwoude
This paper describes surface evolution formulated in terms of a Hamilton-Jacobi equation and a solution algorithm based on a three-dimensional front tracking algorithm. Our method achieves sharp...
J. Glimm, D. Saltz, D. H. Sharp
: We describe a generalization of a recently-proposed two-phase flow model for the statistical evolution of an incompressible mixing layer. This model, which was originally developed for application...
A Parallel Algorithm For Multizone, Multiphase Systems With Application To Crystal Growth (1996)
W. K. Chui, J. Glimm, F. M. Tangerman, H. Zhang, V. Prasad
Materials processing systems, such as the Czochralski crystal growth system, are often characterized by the presence of a number of distinct materials and phases with significantly different...
Computational Physics Meets Computational Geometry (1996)
J. Glimm, S. R. Simanca, T. M. Smith, F. Tangerman
Front Tracking is a methodology which uses computational geometry to provide numerical solutions of enhanced quality for problems of computational physics. It is particularly applicable to the...
A Numerical Study of the Richtmyer-Meshkov Instability in Three Dimensions (1996)
In this paper, we study the shock driven Richtmyer-Meshkov (RM) instability in three dimensions using a high resolution numerical method, the TVD scheme with artificial compression. We study the RM...
The Rayleigh-Taylor instability is a gravity driven instability of a contact surface between fluids of different densities. The growth of this instability is sensitive to numerical or physical mass...
Modeling Of Resin Transfer Molding (1995)
W. K. Chui, J. Glimm, F. M. Tangerman, A. P. Jardine, J. S. Madsen
Resin Transfer Molding (RTM), as a method for the manufacture of advanced fiber reinforced composite materials, is attractive because it offers the possibility of lower manufacturing costs and more...
A Multi-Temperature Multiphase Flow Model (1970)
B. Cheng, J. Glimm, D. H. Sharp
In this paper we propose a multiphase model with nonequilibrated temperatures but with equal velocities and pressures for each species. Turbulent mixing is driven by diffusion in these equations. The...
A Critical Analysis of Rayleigh-Taylor Growth Rates (1970)
J. Glimm, J. W. Grove, X. L. Li, W. Oh, D. H. Sharp
this paper is to begin a systematic analysis of causes of these discrepancies. To do this, we summarize the results of previous RayleighTaylor instability studies, identify potential sensitive...
Prediction and the Quantification of Uncertainty (1970)
Prediction is based on the comparison of results from the statistical analysis of observational data and from the scientific modeling of the system being observed. Effective prediction imposes new as...
Porosity Migration In Rtm (1970)
W K Chui, J Glimm, F M Tangerman, A P Jardine, J S Madsen, T M Donnellan, ...
The reduction of porosity is an important requirement in the manufacture of reliable composite components. In the Resin Transfer Molding (RTM) process, porosity results from the formation and growth...
Density Dependence of Rayleigh-Taylor and Richtmyer-Meshkov Mixing Fronts (1970)
Baolian Cheng, J. Glimm, D. H. Sharp
We propose a pair of ordinary differential equations to describe the motion of the two edges of a Rayleigh-Taylor (RT) or RichtmyerMeshkov (RM) mixing zone. These model equations give a simple...
A comparison of experimental, theoretical, and numerical simulation Rayleigh–Taylor mixing rates
George, E., Glimm, J., Marchese, A.
We present a Rayleigh–Taylor mixing rate simulation with an acceleration rate falling within the range of experiments. The simulation uses front tracking to prevent interfacial mass diffusion. We...
A comparison of experimental, theoretical, and numerical simulation Rayleigh–Taylor mixing rates
George, E., Glimm, J., Marchese, A.
We present a Rayleigh–Taylor mixing rate simulation with an acceleration rate falling within the range of experiments. The simulation uses front tracking to prevent interfacial mass diffusion. We...