Numerical analysis of meniscus dynamics in monolayer-wick dropwise condensation

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• The results suggest a transition where the liquid condensing within the wick structure does not collect in the droplets above the wick, but transports as a film within the wick [26,27]. The results indicate that this transition to decreased thermal performance is most evident for the largest powder diameters (240 and 416 µm, in our new data [16]). For these samples, the increased film thickness beneath the wick structure results in lower performance. The large diameter copper powder particles are too widely spaced to generate small departing droplets with low hysteresis, which prevents the consistent formation of droplets. The droplets experience high hysteresis while thin films form on and within the wick. The theoretical explanation of this data is provided in the following sections.
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