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SUMMARY:Analysis and Visualization Tools for Assessing Fusion Simulations
DTSTART:20120613T103000
DTEND:20120613T113000
DTSTAMP:20260407T020752Z
UID:64995da14464cbf80700f100c8255fe7052553bbe4a52c42c39e825c
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. A.R. Sanderson\, Scientific Computing and Imagining Insti
 tute\, University of Utah\, USA\nIn this talk I will present three tools 
 developed for analysis and visualization of fusion simulations. The first 
 tool\, the Poincaré Plot was designed for analyzing the magnetic field to
 pology in MHD simulations. Specifically\, our goal was to develop an inter
 active tool that could quickly construct the major features of the magneti
 c field while at the same time analyze the topology and identify island ch
 ains. To accomplish this task we treat the magnetic fieldline as a signal 
 and search for harmonics in both toroidal and poloidal directions. The sec
 ond tool is a query based selection tool that allows for the interrogation
  particle based codes\, as such PIC used in gyrokinetic simulations. Searc
 hing through millions to billions of particles to find anomalies can be a 
 time consuming process. Our query based tool utilizes index based selectio
 n to speed up the search while allowing the user to form range based queri
 es over multiple time steps. The end process allows the user to quickly fo
 rm "what if" questions and search for correlations in the data such as tho
 se found with particles that diffuse radially during the simulation. The l
 ast tool forms the basis for constructing and performing synthetic diagnos
 tics for comparing experimental and simulation data. Such tools allow scie
 ntists to perform validation comparisons as part of their V&V process. All
  of the tools have been developed and deployed as part of the VisIt toolki
 t.
LOCATION:PPB 019
STATUS:CONFIRMED
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