Visualizing DIII-D Tokamak magnetic field lines

Schussman, G.; Ma, Kwan‐Liu; Schissel, D.; Evans, T.

doi:10.1109/visual.2000.885742

Cited by 9 publications

(8 citation statements)

References 3 publications

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“…Schussman et at. [SMSE00] have developed a software to interactively present scientists with three-dimensional views of tokamak field lines using simple graphics techniques. The lines are rendered using the Phong illumination model to enhance the perception of their curvature.…”

Section: Controlled Fusionmentioning

confidence: 99%

Rendering Plasma Phenomena: Applications and Challenges

Baranoski

Rokne

2007

Computer Graphics Forum

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Plasmas are ubiquitous in the Universe. An understanding of plasma phenomena is therefore of importance in almost every area of astrophysics, from stellar atmospheres to star clusters. Plasmas also occur in daily life both in industrial processes and in consumer products. Recent groundbreaking data is making this the golden age of plasma science. Although direct observations and analysis of data provide important physical evidence for plasma phenomena, they do not necessarily explain the phenomena. Hence, recent discoveries in this area might not only arise out of observations, but also from visual simulations of the phenomena supported by advanced rendering technologies. This report describes the state of art of such simulations, and examines practical issues often overlooked in the literature. Educational and public outreach applications are also discussed. Although the emphasis is on the predictive rendering of plasma processes, the simulation guidelines and trade-offs addressed in this report can be extended to other types of natural phenomena. The report closes with a discussion of further avenues of research involving the visual simulation of plasma phenomena.

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Section: Controlled Fusionmentioning

confidence: 99%

Rendering Plasma Phenomena: Applications and Challenges

Baranoski

Rokne

2007

Computer Graphics Forum

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“…For example, Parker et al [1995] developed a gyrokinetic particle simulation to visualize a plasma turbulence in a Tokomak (an apparatus for producing controlled fusion reaction in hot plasma), and Ljung et al [2000] presented a system for the animation of the evolution of an instability that gives rise to a plasma surfatron, a mechanism for particle acceleration of importance in particle accelerators, in the context of electron acceleration in astrophysical shocks and in the solar corona. It is relevant to note the work of Schussman et al [2000] who presented techniques for the visualization of magnetic field data from the DIII-D Tokomak, a fusion facility that conducts both experimental and computational plasma research.…”

Section: Related Workmentioning

confidence: 99%

Simulating the dynamics of auroral phenomena

et al. 2005

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Simulating natural phenomena has always been a focal point for computer graphics research. Its importance goes beyond the production of appealing presentations, since research in this area can contribute to the scientific understanding of complex natural processes. The natural phenomena, known as the Aurora Borealis and Aurora Australis, are geomagnetic phenomena of impressive visual characteristics and remarkable scientific interest. Aurorae present a complex behavior that arises from interactions between plasma (hot, ionized gases composed of ions, electrons, and neutral atoms) and Earth's electromagnetic fields. Previous work on the visual simulation of auroral phenomena have focused on static physical models of their shape, modeled from primitives, like sine waves. In this article, we focus on the dynamic behavior of the aurora, and we present a physically-based model to perform 3D visual simulations. The model takes into account the physical parameters and processes directly associated with plasma flow, and can be extended to simulate the dynamics of other plasma phenomena as well as astrophysical phenomena. The partial differential equations associated with these processes are solved using a complete multigrid implementation of the electromagnetic interactions, leading to a simulation of the shape and motion of the auroral displays. In order to illustrate the applicability of our model, we provide simulation sequences rendered using a distributed forward mapping approach.

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“…Gooch et al [8] describe how variation in hue from warm to cool can be used to indicate shading, reserving variation in color intensity for outlines and highlights. Schussman et al [22] use hue to indicate line direction when visualizing magnetic field lines. Either of these ideas can be incorporated as a particle system rule.…”

Section: E Particle Colormentioning

confidence: 99%

Using motion to illustrate static 3D shape - kinetic visualization

Lum¹,

Stompel²,

2003

IEEE Trans. Visual. Comput. Graphics

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Abstract-In this paper we present a novel visualization technique -kinetic visualization -that uses motion along a surface to aid in the perception of 3D shape and structure of static objects. The method uses particle systems, with rules such that particles flow over the surface of an object to not only bring out, but also attract attention to information on a shape that might not be readily visible with a conventional rendering method which uses lighting and view changes. Replacing still images with animations in this fashion, we demonstrate with both surface and volumetric models in the accompanying videos that in many cases the resulting visualizations effectively enhance the perception of three-dimensional shape and structure. We also describe how for both types of data a texture-based representation of this motion be rendered using PC graphics hardware for interactive visualization. Finally, the results of a user study that we have conducted is presented, which show evidence that the supplemental motion cues can be helpful.

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Visualizing DIII-D Tokamak magnetic field lines

Cited by 9 publications

References 3 publications

Rendering Plasma Phenomena: Applications and Challenges

Rendering Plasma Phenomena: Applications and Challenges

Simulating the dynamics of auroral phenomena

Using motion to illustrate static 3D shape - kinetic visualization

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