Visualization of Large-Scale Unsteady Computational Fluid Dynamics Datasets

Abstract

_____________________________________________________________________________________________This paper represents an entry to the SC|05 Analytics Challenge and describes a new scientific visualization tool designed to allow investigators to more effectively interrogate large unsteady datasets. By utilizing techniques such as data extracts and programmable graphics processing units, this new capability allows users to more freely interrogate time accurate Computational Fluid Dynamics (CFD) solutions in excess of 10 8 grid points. This tool known as the Advanced Technology Viewer (ATViewer) has been incorporated into Intelligent Light's FIELDVIEW 11 product and applied here to interrogate two large unsteady datasets on the order of 60 gigabytes in size. The first is an unsteady Reynolds Averaged Navier-Stokes simulation of a wind turbine operating at a high yawed position. The other is a hybrid Large-Eddy simulation of an elastic helicopter rotor in forward flight.

In Situ Methods, Infrastructures, and Applications on High Performance Computing Platforms

“…Other works have focused on extracts derived from topology. Duque et al, 2005 [DL05] extract isosurfaces into their XDB format for later exploration in their FieldView visualization tool. Biedert et al, 2015 [BG15] utilize contour trees to create compact image‐based representations which enable explorative analysis and visualization, including analysis based on specific subsets of the contour tree's segmentations.…”

EPIC - An Extract Plug-In Components Toolkit for In-Situ Data Extracts Architecture

“…NASA Ames' ARCGRAPH based data extracts were part of the CFD post-processing packages such as PLOT3D [2] and FAST in the mid-1990. The FieldView software has an extract capability known as eXtract DataBase (XDB) [3] and is a fully commercialized feature in FieldView as presented in a recent case study [4].…”