Large eddy simulation of blood flow in a realistic model of the Circle of Willis
The dataset was produced using fully resolved Large Eddy Simulation (LES) and multiharmonic rheological flow models in a realistic in silico phantom of the CoW.
Researchers and biomedical engineers could utilize this dataset to fine-tune their CFD models and establish standard reference simulation(s) before carrying out further parametric studies.
Having the dataset released under an open-access license encourages the community to further expand the dataset using different investigation modalities.
CoW Model reference:
- N. Wilson, K. Wang, R. Dutton, C.A. Taylor, "A software framework for creating patient specific geometric models from medical imaging data for simulation based medical planning of vascular surgery", Medical Image Computing and Computer-Assisted Intervention MICCAI 2001, Springer, 2001, pp. 449–456. doi: 10.1007/3-540-45468-3_54
- N. Xiao, J.D. Humphrey, C.A. Figueroa, "Multi-Scale Computational Model of Three-Dimensional Hemodynamics within a Deformable Full-Body Arterial Network”, Journal of Computational Physics, 2013, Vol 244, pp. 22-40. doi: 10.1016/j.jcp.2012.09.016
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Readme.txt
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Dataset ID 0001v1
Dataset category CFD
Dataset domain Circle of Willis
Spacetime frames 3DSteady
File formats *.vtm, *.vtu
Software ParaView, VMTK
Dataset description:
Time averaged data of the flow in a realistic CoW model using Large Eddy Simulation of blood flow using non-Newtonian whole blood viscosity model.
Total simulation time (time averaging limits): from 0 to 3 seconds.
Timestep 0.5 millisecond.
Fields Scalar, vector, tensor
Field variables:
Mean_mxt Time averaged grid quality index (Pope index), unit dimensionless (%).
Mean_pressure Time averaged guage static pressure, unit Pascal (N/m2).
Mean_pressure_coefficient Time averaged pressure coefficient, unit dimensionless (num).
Mean_psi Time averaged psi (the ratio between non-Newtonian and Newtonian viscosities), unit dimensionless (num).
Mean_velocity_magnitude Time averaged velocity magnitude, unit (m/s).
Mean_x_velocity Time averaged x-velocity component, unit (m/s).
Mean_y_velocity Time averaged y-velocity component, unit (m/s).
Mean_z_velocity Time averaged z-velocity component, unit (m/s).
Mean_wall_shear Time averaged wall shear stress, unit Pascal (N/m2).
Mean_x_wall_shear Time averaged wall shear stress on XZ or XY planes, unit Pascal (N/m2).
Mean_y_wall_shear Time averaged wall shear stress on YZ or XY planes, unit Pascal (N/m2).
Mean_z_wall_shear Time averaged wall shear stress on YZ or XZ planes, unit Pascal (N/m2).
sgs_filterlength LES Subgrid scale filter length, unit (m).
