|Authors||K. Valen-Sendstad, M. Mortensen, K. Mardal, B. A. P. Reif and H. P. Langtangen|
|Title||Investigations of Transistional Flows Using Image Based Hemodynamics|
|Afilliation||Scientific Computing, Center for Biomedical Computing (SFF), Scientific Computing|
|Project(s)||Center for Biomedical Computing (SFF)|
|Publication Type||Proceedings, refereed|
|Year of Publication||2011|
|Conference Name||8th International Conference on CFD in Oil & Gas, Metallurgical and Process Industries|
We investigated the complexity of blood flow in intracranial aneurysms in terms of the frequency spectrum of pointwise velocity and pressure fluctuations. The investigations were performed using high-resolution computational fluid dynamics (CFD) simulations for patient-specific middle cerebral artery (MCA) aneurysms, using realistic inflow profile. Through these simulations, the study confirmed that complex transitional flow can occur in intracranial aneurysms. In particular, we found fluctuations of the order of 500- 1000 Hz.