Finite Element Analysis of the Temperature Field Around Two Adjacent Cryo-Probes

Author:

Weill Anne1,Shitzer Avraham1,Bar-Yoseph Pinhas1

Affiliation:

1. Technion-Israel Institute of Technology, Haifa 32000, Israel

Abstract

A finite element code was developed for the analysis of the temperature field around two adjacent cylindrical cryo-probes. The two-phase, two-dimensional Stefan problem is solved using a moving boundary approach and space-time finite elements. Solution of one-cryo-probe problem compared well with an existing analytic solution. The two-cryo-probes problem yielded reasonable results. The program simulated the nonsymmetric activation of two probes and the merging of the two freezing fronts in the case of symmetric activation.

Publisher

ASME International

Subject

Physiology (medical),Biomedical Engineering

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