Mass Accumulation on the Wall of a Stenosed Artery

Autor:	Takuji Ishikawa, Shuzo Oshima, Yoshiyuki Waki, Ryuichiro Yamane, Motoharu Hasegawa
Rok vydání:	1999
Předmět:	medicine.medical_specialty Chemistry Mechanical Engineering Flow (psychology) Condensed Matter Physics medicine.disease Stenosed artery Non-Newtonian fluid Upstream and downstream (DNA) Stenosis medicine.anatomical_structure Internal medicine Fluid dynamics medicine Cardiology Hemorheology Artery
Zdroj:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 65:1551-1558
ISSN:	1884-8346 0387-5016
DOI:	10.1299/kikaib.65.1551
Popis:	It is pointed out that mass accumulation in an artery, such as LDL accumulation, influences the progression of stenosis severely. Mass accumulation in pulsatile blood flow through a stenosed artery is analyzed numerically. Flow is assumed to be periodic and axisymmetric. Non-Newtonian viscosity of blood and movement of arterial wall are considered. The effect of intermittency, pulsation and wall movement on mass accumulation is investigated. Flow pattern, concentration pattern and distribution of mass accumulation on the wall are obtained. It is found that mass accumulates particularly just upstream and downstream of stenosis. Therefore, it is suggested that the flow structure around stenosis is closely related to mass accumulation just upstream and downstream of stenosis. Mass accumulation decreases at stenosis and increases downstream of stenosis due to wall movement.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7a06b68d1469d020d726961ad9febfcb https://doi.org/10.1299/kikaib.65.1551 Zobrazit plný text záznamu