Unsteady velocity measurements in a realistic intracranial aneurysm model

作者：Ugron Adam^*; Farinas Marie Isabelle; Kiss Laszlo; Paal Gyoergy

来源：Experiments in Fluids, 2012, 52(1): 37-52.

DOI：10.1007/s00348-011-1206-z

The initiation, growth and rupture of intracranial aneurysms are intensively studied by computational fluid dynamics. To gain confidence in the results of numerical simulations, validation of the results is necessary. To this end the unsteady flow was measured in a silicone phantom of a realistic intracranial aneurysm. A flow circuit was built with a novel unsteady flow rate generating method, used to model the idealised shape of the heartbeat. This allowed the measurement of the complex three-dimensional velocity distribution by means of laser-optical methods such as laser doppler anemometry (LDA) and particle image velocimetry (PIV). The PIV measurements, available with high temporal and spatial distribution, were found to have good agreement with the control LDA measurements. Furthermore, excellent agreement was found with the numerical results.

• 出版日期2012-1