关键词: 晶格玻尔兹曼方法/
三角波脉动流/
锥形管/
通栓
English Abstract
Triangle wave pulsating flow effect on thrombus simulated by the lattice Boltmann method
Jiang Yan-Hua1,Chen Jia-Min1,
Shi Juan2,
Zhou Jin-Yang1,
Li Hua-Bing1
1.School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China;
2.School of Information and Communication Engineering, Guilin University of Electronic Technology, Guilin 541004, China
Fund Project:Project supported by the National Natural Science Foundation of China (Grant Nos. 11362005, 11065006).Received Date:09 November 2015
Accepted Date:11 December 2015
Published Online:05 April 2016
Abstract:As one of the major causes of cardiovascular diseases, the formation mechanism and the external factors of blood embolism are always the concerned problems of medical field, biological and physical field. Owing to thrombotic formation and structure being complicated, the difficulty in curing thrombosis greatly increases. Pulsation flows have a positive effect on dredging blood embolism. Owing to the blood viscosity and the inertia of red blood cells, waveform, amplitude and frequency of pulsating flow will influence the effect of dredging blood embolism. The research in this paper is mainly based on the lattice Boltzmann method. In conical pipe with embolism, in order to explore the influences of triangle wave pulsating flow waveform, the effects of differential pressure and frequency on vascular thrombus are studied by calculating the effect of dredging blood embolism. Calculation shows that the effect of dredging blood embolism is not obvious under the condition of low frequency and low differential pressure. On the contrary, the effect is good under the condition of high frequency. Appropriately increasing the differential pressure can also improve the frequency of the triangular wave of the bolt.
Keywords: lattice Boltzmann method/
triangular pulsation/
conical tube/
dredge thrombosis
