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Combined electromagnetic and heat-conduction analysis of rapid rewarming of cryopreserved tissues
- Source :
- IEEE Transactions on Microwave Theory and Techniques. 48:2185-2190
- Publication Year :
- 2000
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2000.
-
Abstract
- A combined solution of an electromagnetic (EM)-wave equation and head transfer equation is presented to analyze the microwave rewarming process of cryopreserved tissues. The solution process starts with an initial temperature of the tissue. The EM-field distribution inside the tissue is determined first by solving hybrid surface-volume integral equations. This solution provides a thermal source term for the heat-transfer equation. A finite-difference scheme is then applied to solve the heat-transfer equation, which determines the temperature distribution inside the tissue for the next time step. Since the tissue's electrical characteristics (/spl epsiv/ and /spl sigma/) are functions of temperature, their values are then updated based on the new temperature distribution. The iteration continues until a termination condition is satisfied. This combined iterative solution of wave equation and heat-transfer equation allows one to model the complex rewarming process. Numerical results are presented to demonstrate the application of the combined analysis approach.
Details
- ISSN :
- 00189480
- Volume :
- 48
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Microwave Theory and Techniques
- Accession number :
- edsair.doi...........528882dbdfe81c54f5363558b363ea68