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Published on: October 13, 2014
Experimental measurement and theoretical analyses of the freezing-thawing processes around a probe
1Institute of Cryobiology and Food Freezing, University of Shanghai for Science and Technology, No.516, Jun Gong Road, Shanghai, 200093, China.
Abstract:
Both the experimental and the analytical studies of the freezing/thawing process around a cryosurgical cylinder probes in a simulative biological tissue are presented in this paper. The enthalpy method and the finite element scheme are applied to solve the multidimensional phase change problems in cryosurgery. A very good agreement is found between the computed solutions and the experimental results. The influences of different cooling-warming schemes of the probe on the ice ball development, the temperature variation, the axial and the radial temperature gradients inside the tissues, and the requirement of cooling power are analyzed

