基于模拟方法生成血管树的人舌三维温度场数值模拟  

NUMERICAL SIMULATION OF 3-D TEMPERATURE FIELD OF TONGUE BASED ON SIMULATED ARTERIAL TREE

作　　者：杨爱[1] 诸凯[1] 张艳[1] 王雅博[1] 解海卫[1] 姜智浩[2] 

机构地区：[1]天津商业大学天津市制冷技术重点实验室,天津300134 [2]天津中医药大学,天津300072

出　　处：《工程热物理学报》2010年第1期116-119,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.54076067)

摘　　要：采用分步模拟方法生成血管树并以此作为物理模型,进行舌体三维温度场的实验研究与数值计算。计算分为舌体组织和血液温度场数值模拟两部分,相应数学模型也包括舌体组织控制方程、血液控制方程及两者之间的耦合方程。在考虑了血液与组织间的耦合换热,舌津液蒸发的影响基础上,采用数值模拟得到的舌面对流换热系数,使计算结果与红外热像验证极为近似。以模拟方法生成的血管树替代生物体的血管铸型,在某种意义上说将生物体三维传热计算方法的研究推向了一个新的层面。Stepwise simulation method is applied to develop arterial tree.This paper focuses on the experimental research and numerical calculation of 3-D temperature field obtained by taking the arterial tree as a physical model.The simulation of temperature field is divided into two parts,tissue and e blood.Corresponding mathematical models included tongue governing equation and blood governing equation as well as coupled equation.We consider coupled heat transfer in the blood and tissue and the influence of saliva evaporation.We determine the heat transfer coefficient of tongue by numerical simulation method.Comparing the simulation temperature field with infrared thermal imaging,the result shows that they are in good agreement.It indicates that the vessel tree developed by stepwise method is an alternative of real arterial tree.The new way on modeling arterial tree improves the algorithm of bio-heat transfer.

关 键 词：舌 血管树 血管铸型 三维温度场 生物传热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]