We used computational fluid dynamics(CFD) to investigate the steady and pulsatile flows in the vicinity of model stents and focused on the changes of wall shear stress caused by the implanted stents.
我们利用计算流体动力学的方法,分析了定常流与脉动流两种条件下,支架植入引起的血管壁面剪应力的变化。
Mass transfer rates and wall shear stresses are measured by the electrochemical method.
传质速率及壁面剪切应力的测量采用电化学方法。
Conclusion Low wall shear stress is a risk hemodynamic factor in the development of atherosclerotic plaque.
结论低血管壁面剪切应力,是动脉粥样硬化的危险性血流动力学因素。
Wind tunnel experiments show that the developed sensor can measure wall shear stress with high repeatability.
结合风洞试验验证了该传感器测量壁面剪应力的有效性,并且获得了较好的测量重复性。
There are controversial ideas how vascular wall shear stress take an effect on plaque in carotid artery and its stability.
血流壁切应力对颈动脉斑块及其稳定性有何影响,尚存在不同的看法,需要进一步的研究。
The interphase forces on the propagation were investigated, including wall shear stress, virtual mass force and drag force.
着重分析了相间作用力,包括壁面剪切应力、虚拟质量力、拖拽力,对压力波传播速度和衰减的影响。
The wall shear stress caused by cement slurry flowing in the annular space is a key element that affects the displacing efficiency.
水泥浆环空流动的壁面剪应力是影响顶替效率的关键因素。
A three-dimensional numerical model with free water surface and wall shear stress was used to analyze the water flow affected by piers.
该文采用具有自由水面和河床切应力计算的三维数学模型分析了桥墩群对河道水流的影响。
Objective To explore the changes of wall shear stress (WSS) effect on endothelial cell morphology remodeling after reducing arterial flow.
目的探讨动脉血流受阻后壁切应力(WSS)变化对内皮细胞形态适应性重建的影响。
Furthermore, the more the vessel expansion is, the less the wall shear stress will be and the more the gradient of wall shear stress will be.
另外,随着血管扩张程度的增加,管壁切应力还将进一步减小,而且管壁切应力梯度也将进一步增大。
Experiments were carried out to investigate the developing length due to the wall shear stress in horizontal air water two phase bubbly flows.
在水、空气实验回路上对水平管内气液两相泡状流的壁面切应力进口段进行了实验研究。
The analysis of the signals of arterial wall shear stress (WSS) plays an important role in the study of the relationship between WSS and arterial remodeling.
动脉壁面切应力信号的分析对研究切应力与血管重建的关系有重要意义。
The results depicted the temporal and spatial distributions of hemodynamic variables such as flow patterns, wall shear stresses and wall shear stress gradients.
结果展示了流场、壁面剪切应力及其梯度等血流动力学的时空分布情况。
Several methods of calculating arterial wall shear stress are compared in this paper, and the restricted elasticity model is more adapt to clinical application.
本文比较了几种计算血管壁切应力的方法,认为采用有约束的弹性管模型计算获得的动脉壁切应力更适合于临床应用。
The bifurcation and chaotic process of two-dimensional parallel wall shear flows are described by the forced oscillation equation containing a square nonlinear term.
二维平行壁面剪切流动进入混沌的现象可用含二次非线性项的强迫振动方程来描述。
In this paper, we attempt to study the wall shear stress in the flow field of a t bifurcation section of an artery model by using an electrochemical measuring technique.
应用电化学方法,对动脉模型T形分叉部位流场壁面剪应力进行测试研究。
Results Distributions of blood velocity, pressure, wall shear stress (WSS) in the human aortic arch at different point during one cardiac circle were determined by calculation.
结果计算得到了人体主动脉弓内的血液流动在心动周期不同时刻的速度场、压力、壁面剪切应力的分布特征。
Through solving the blood flow equations for local vessel expansion region, the analytical expressions of blood flow velocity, pressure and wall shear stress were then obtained.
接着,通过求解局部扩张血管段内的血液流动方程,导得血液流速、压力和血管壁切应力的分析表达式。
In order to measure dynamically the local temperature or wall shear stress of a flow, a new structure of flexible hot-film sensor array and its fabrication process are proposed.
为了实现流场壁面剪应力等动态定点分布测量,提出了一种新的柔性热膜传感器阵列结构,并介绍了其制作工艺。
According the blood speed and diameter of carotid artery measured in cerebrovascular disease patients and the control, the carotid wall shear stress of both groups are calculated.
根据检测得到的正常人和动脉硬化性脑血管病患者的颈动脉血流速度、血管管径等数据,计算两者的颈动脉壁面切应力。
The cementing job quality was successfully controlled by means of carrying out the cementing design plan of wall shear stress and the leakproof method by raising slurry viscosity.
通过实施壁面剪应力固井设计方法和提高水泥浆粘度的防漏方法,成功实现了对固井质量的控制。
Objective To observe the relation between the change of arterial wall shear stress and the expression of matrix metalloproteinase 2 (MMP-2), and analyze its role in aneurysm formation.
目的观察局部动脉壁剪切力改变对基质金属蛋白酶2 (MMP - 2)表达的影响及其与动脉瘤形成的关系。
As an example, the human carotid with local cosine form expansion was analyzed and the effects of local expansion on the distribution of wall shear stress and its gradient were discussed in detail.
文章以人体颈动脉余弦扩张为例进行分析,详细讨论了局部扩张对血管壁切应力及其梯度分布的影响。
Wall shear stress method integrates the plug flow displacing, the low speed displacing and the turbulent flow displacing methods in theory.
壁面剪应力设计方法,从理论上把塞流顶替、低速顶替及紊流顶替技术统一起来。
Wall shear stress method integrates the plug flow displacing, the low speed displacing and the turbulent flow displacing methods in theory.
壁面剪应力设计方法,从理论上把塞流顶替、低速顶替及紊流顶替技术统一起来。
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