Enthalpy Method To Compute Radial Heating And Thawing Of Logs

H. Peter Steinhagen, Harry W. Lee


This paper discusses an enthalpy method to compute transient temperatures of logs. The logs may be initially frozen. It is assumed that the logs are subjected to radial heating in agitated water. The method handles phase change at a distinct temperature, which is an advantage over a previous (temperature) method. Calculations for four test logs were performed by a computerized, explicit finite-difference scheme called LOGHEAT. Model and experiment closely agreed with each other. Simplified "by hand" calculations were also satisfactory.


Heat transfer model;thawing model;phase change model;enthalpy method;finite-difference technique;simulation;logheating

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