Abstract
A transient heat pipe was modeled by a quasi steady state one-dimensional vapor flow and a transient two-dimensional wall and wick heat conduction. The assumption of quasi steady state vapor was based on the fact that the vapor dynamics have a much smaller timescale than the wall conduction. A boundary element method was proposed to solve the transient two-dimensional heat conduction problem. The vapor flow dynamics was solved by a numerical approach, including two iterative “estimate-correction” processes. Comparisons with previous experimented and numerical studies verified the model and the solution methods. This work provides an effective means of transient heat pipe analysis.
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