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首页> 外文期刊>International journal of numerical methods for heat & fluid flow >Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation
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Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation

机译：在特定患者特定程度的颈动脉分叉中强制对流换热

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Purpose - The purpose of this paper is to numerically model forced convection heat transfer within a patient-specific carotid bifurcation and to examine the relationship between the temperature and wall shear stress. Design/methodology/approach - The procedure employs a parallel, fully explicit (matrix free) characteristic based split scheme for the solution of incompressible Navier-Stokes equations. Findings - The arterial wall temperature, rather than the blood temperature dominates the regions of low wall shear stress and high oscillating shear stress. Additionally, negligible temperature gradient was detected proximal to the arterial wall in this locality. Originality/value - The presented results demonstrate a possible mechanism for cold air temperature to influence the atherosclerotic plaque region proximal to the stenosis. The proposed patient-specific heat transfer analysis also provides a starting point for the investigation of the influence of induced hypothermia on carotid plaque and its stability.
机译：目的-本文的目的是对患者特定的颈动脉分叉内的强制对流传热进行数值建模，并研究温度与壁切应力之间的关系。设计/方法/方法-该程序采用基于并行，完全显式（无矩阵）特征的拆分方案来求解不可压缩的Navier-Stokes方程。研究结果-动脉壁温度而非血液温度主导着低壁切应力和高振荡切应力的区域。另外，在该区域中在动脉壁附近检测到可忽略的温度梯度。原创性/价值-提出的结果证明了冷空气温度影响狭窄附近的动脉粥样硬化斑块区域的可能机制。提出的针对患者的传热分析也为研究低温引起的颈动脉斑块及其稳定性的研究提供了一个起点。

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