An Image-Based Computational Fluid Dynamic Method for Haemodynamic Simulation(Reviewed Papers Accepted for Publication in this Special Issue)(Special Issue on Bioengineering)

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概要

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• Blood vessel in circulatory system often shows a rich variety in geometry as well as in morphology and image-based anatomic modeling of such vessels for haemodynamic simulation is usually of great time-consumption. In this paper we proposed a new computational fluid dynamic method that is capable to directly utilize the pixel and/or voxel dataset based on the threshold for the raw medical images of MRI, CT and etc. to define the computational domain in a Cartesian coordinate system. Boundary of the domain is determined in a manner of VOF (fractional Volume Of Fluid) and the flow is computed using a non-staggered finite difference method, in which treatment of the boundary conditions is conducted with the neighboring point local collocation method (NPLC). Results are presented of two pulsatile flows in a two-dimensional stenosed blood vessel model. Comparison with other reliable results shows that the present method is able to reasonably predict complicated vortical flow in blood vessel very well.

• 一般社団法人日本機械学会の論文
• 2002-12-15

著者

• Himeno R

  Computer And Information Division Advanced Computing Center The Institute Of Physical And Chemical R

• Liu H

  Chiba Univ. Chiba Jpn

• Liu Hao

  Computer And Information Division The Institute Of Physical And Chemical Research (riken)

• Himeno Ryutaro

  Computational Biomechanics Unit Riken

• MATSUNAGA Nami

  Computer and Information Division, Advanced Computing Center, The Institute of Physical and Chemical

• Matsunaga Nami

  Computer And Information Division Advanced Computing Center The Institute Of Physical And Chemical R

• Liu Hao

  Computer And Information Division The Institute Of Physical And Chemical Research

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