Vortex Analysis of Intra-Aneurismal Flow in Cerebral Aneurysms

Figure 10

Vortex cores identified from two (SA4 and TA2) ANSYS-FLUENT-simulated cases (a and c) and the same cases using the Siemens LBM-simulated velocity fields from the Siemens CFD solver (b and d) under the same boundary conditions. Visual inspection ensured that main vortex core structures occurred in the same generalized location while Siemens CFD solver (b and d) resulted in a smoother core surface. Both cases had cores extracted using the same parameters: [normalized] -criterion; threshold is their mean of [normalized] , and only vortex cores with a volume > 0.5 mm³ were saved. Each vortex core was extracted from the cycle-averaged vorticity data (per respective case).

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