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Valerio Pascucci, U-Utah

Application

  • Turbulent Combustion by Dr. Jackie Chen at SNL, and Dr. John Bell at LBNL

Goal: understanding turbulent combustion

  • Combustion provides 85% of the US energy needs
  • Low emission/temperature engines will operate at combustion regimes currently poorly understood
  • Need new understanding of turbulence-chemistry to predict efficiency and pollutant emissions

Requirement: exploration of flexible Feature definition, analysis and tracking

  • Develop robust feature definition
  • Allow user to change parameters interactively and evaluate consequences on results
  • Track features over time based on variable correspondence parameters
  • Concurrent analysis of multiple fields restricted to the features of interest

Challenges

  • Accurate combustions simulation generate massive datasets that are hard to manage in postprocessing
  • The data needs to be inspected by the user since selection parameters are not predetermined
  • For each parameter selection
    • the user needs to get access the shape characterizations
    • understand the consequence on events like merging or splitting of features of time

       

Pascucci.Utah.Ana.Topology.turbulance-fig1

 

Simulation of turbulent combustion

Segmentation of the data based on a particular feature definition

 

Segmentation of the data based on a particular feature definition