NUMERICAL STUDY OF BIOLOGICAL TISSUE FREEZING HEAT TRANSFER

摘要：

A numerical model of phase change heat transfer in biological tissue is established in this paper. The biological tissue is assumed as porous media and the different thermophysical properties of normal biological tissue and tumor is considered. The phase change process occurs in a temperature range. Effective heat capacity method is used to simulate heat transfer and ice crystal growth and thawing process in the biological tissue. The temperature distribution vs. time in biological tissue is simulated. It is shown that the temperature decreases more quickly in biological tissue when the initial cryoprobe temperature is lower and cooling-rate of cryoprobe is faster in the freezing process.

作者: Juan SHI Zhenqian CHEN Mingheng SHI

作者单位: School of Energy and Environment, Southeast University Nanjing, 210096, P. R. China

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）