SCIENTIFIC COMPUTING AND IMAGING INSTITUTE
at the University of Utah

An internationally recognized leader in visualization, scientific computing, and image analysis

SCI Publications

2000


J.D. de St. Germain, J. McCorquodale, S.G. Parker, C.R. Johnson. “Uintah: A Massively Parallel Problem Solving Environment,” In Ninth IEEE International Symposium on High Performance and Distributed Computing, IEEE, Piscataway, NJ, pp. 33--41. Nov, 2000.


S. Ghorai, A.S. Tomlin, M. Berzins. “Resolution of pollutant concentrations in the boundary layer using a fully 3-D adaptive gridding technique,” In Atmospheric Environment, Vol. 34, No. 18, pp. 2851-2863. 2000.


C.E. Goodyer, R. Fairlie, M. Berzins, L.E. Scales. “An In-depth Investigation of the Multigrid Approach to Steady and Transient EHL Problems,” In Thinning Films and Tribological InterfacesProceedings of the 26th Leeds-Lyon Symposium on Tribology, Tribology Series, Vol. 38, Edited by D. Dowson, M. Priest, C.M. Taylor, P. Ehret, T.H.C. Childs, G. Dalmaz, A.A. Lubrecht, Y. Berthier, L. Flamand and J.-M. Georges, Elsevier, pp. 95--102. 2000.
ISSN: 0167-8922

ABSTRACT

Multigrid methods have proved robust and highly desirable in terms of the iteration speed in solving elastohydrodynamic lubrication (EHL) problems. Lubrecht, Venner and Ehret, amongst others, have shown that multigrid can be successfully used to obtain converged solutions for steady problems. steady problems.

A detailed study reinforces these results but also shows, in some cases, that while multigrid techniques give initial rapid convergence, the residuals - having dropped to a low level - may reach a stalling point, mainly due to the cavitation region. The study will explain this behaviour in terms of the iterative scheme and show how, if this happens, the errors in the fine grid solution can be reduced further. Example results of both steady and transient EHL problems (including a thermal viscoelastic case) are shown with further developments into adaptive meshes considered.


C.E. Goodyera, R. Fairliea, M. Berzinsa, L.E. Scales. “An in-depth investigation of the multigrid approach to steady and transient EHL problems,” In 26th Leeds-Lyon Symposium on Tribology, Vol. 38, Elsevier, pp. 95-102. 2000.

ABSTRACT

Multigrid methods have proved robust and highly desirable in terms of the iteration speed in solving elastohydrodynamic lubrication (EHL) problems. Lubrecht, Venner and Ehret, amongst others, have shown that multigrid can be successfully used to obtain converged solutions for steady problems, steady problems. A detailed study reinforces these results but also shows, in some cases, that while multigrid techniques give initial rapid convergence, the residuals - having dropped to a low level - may reach a stalling point, mainly due to the cavitation region. The study will explain this behaviour in terms of the iterative scheme and show how, if this happens, the errors in the fine grid solution can be reduced further. Example results of both steady and transient EHL problems (including a thermal viscoelastic case) are shown with further developments into adaptive meshes considered. © 2000 Elsevier Science B.V. All rights reserved.


R.E. Hogan, K.E. Mark, L. Wang, S. Joshi, M.I. Miller, R. Bucholz. “Mesial Temporal Sclerosis and Temporal Lobe Epilepsy: MR Imaging Deformation-Based Segmentation of the Hippocampus in Five Patients,” In Radiology, Vol. 216, No. 1, pp. 291--297. July, 2000.


R.E. Hogan, K.E. Mark, I. Choudhuri, L. Wang, S. Joshi, M.I. Miller, R. Bucholz. “Magnetic Resonance Imaging Deformation-Based Segmentation of the Hippocampus in Patients with Mesial Temporal Sclerosis and Temporal Lobe Epilepsy,” In J Digit Imaging, Vol. 13, No. 2 (Suppl. 1), pp. 217--218. May, 2000.


R.E. Hogan, R.D. Bucholz, I. Choudhuri, K.E. Mark, C.S. Butler, S. Joshi. “Shape-analysis of hippocampal surface structure in patients with unilateral mesial temporal sclerosis,” In Journal of Digital Imaging, Vol. 13, No. 2, pp. 39--42. 2000.


M. Ikits. “Coregistration of Pose Measurement Devices Using Nonlinear Least Squares Parameter Estimation,” School of Computing Technical Report, No. UUCS-00-018, University of Utah, 2000.


C.R. Johnson, S.G. Parker, D. Weinstein. “Large-Scale Computational Science Applications Using the SCIRun Problem Solving Environment,” In Proceedings of The International Supercomputer Conference 2000, 2000.


S. Joshi, M.I. Miller. “Landmark Matching Via Large Deformation Diffeomorphisms,” In IEEE Transactions on Image Processing, Vol. 9, No. 8, pp. 1357--1370. August, 2000.


G.L. Kindlmann, D.M. Weinstein, D. Hart. “Strategies for Direct Volume Rendering of Diffusion Tensor Fields,” In IEEE Trans. Vis & Comp. Graph., Vol. 6, No. 2, pp. 124--138. April-June, 2000.


Y. Livnat, S.G. Parker, C.R. Johnson. “Fast Isosurface Extraction Methods for Large Image Data Sets,” In Handbook of Medical Imaging, Edited by A.N. Bankman, Academic Press, San Diego, CA pp. 731--745. Nov, 2000.


S.G. Parker, M. Miller, C.D. Hansen, C.R. Johnson. “Computational Steering and the SCIRun Integrated Problem Solving Environment,” In Proceedings of Dagstuhl 1997 Workshop on Scientific Visualization, Note: Invited and peer reviewed, Edited by Hans Hagen and Greg Nielson and Frits Post, pp. 257--266. 2000.


V. Pascucci, C.L. Bajaj. “Time Critical Isosurface Refinement and Smoothing,” In Proceedings of the ACM/IEEE Volume Visualization and Graphics Symposium 2000, Salt lake City, Utah, Note: UCRL-JC-139628, pp. 33--42. October, 2000.


E. Reinhard, B. Smits, C.D. Hansen. “Dynamic Acceleration Structures for Interactive Ray Tracing,” In Proceedings Eurographics Workshop on Rendering, Brno, Czech Republic, pp. 299--306. June, 2000.


E. Reinhard, C.D. Hansen. “A Comparison of Parallel Compositing Techniques on Shared Memory Architectures,” In Proceedings of The 2nd Eurographics Workshop on Parallel Graphics and Visualization, Spain, pp. 115--124. September, 2000.


G. Scheuermann, W. Kollmann, X. Tricoche, T. Wischgoll. “Evolution of Topology in Axi-Symmetric and 3D Viscous Flows,” In Numerical Simulations of Incompressible Flows, World Scientific Publishing, New Jersey, pp. 622--643. 2000.


A. Shamir, V. Pascucci, C.L. Bajaj. “Multi-Resolution Dynamic Meshes with Arbitrary Deformations,” In Proceedings of IEEE Conference on Visualization (VIS-00), Salt lake City, Utah, Note: UCRL-JC-139680, pp. 423--430. 2000.


P. Sutton, C.D. Hansen. “Accelerated Isosurface Extraction in Time-varying Fields,” In IEEE Trans. Vis & Comp. Graph., Vol. 6, No. 2, pp. 98--107. 2000.


P.M. Sutton, C.D. Hansen, H.W. Shen, D. Schikore. “A Case Study of Isosurface Extraction Algorithm Performance,” In Proceeding of The Joint Eurographics - IEEE TCVG Symposium on Visualization 2000, Amsterdam, pp. 259--268. May, 2000.