Propagation Dynamics of Self-Sustained Evaporation Front and Characteristics of Small-Scale Perturbations at the Interface

Жуков, В. Е.; Павленко, А. Н.; Moiseev, M. I.; Кузнецов, Д. В.

doi:10.1615/ihtc15.evp.008766

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“…It is shown in [11] that interface acceleration affects significantly the instability development and intensification of heat transfer through the interface. A decrease in acceleration at nanoparticles addition gives an opportunity for instability development at the lower velocities of evaporation front.…”

Section: Resultsmentioning

confidence: 99%

Dynamics of Evaporation Front Propagation in Freon R21 With Addition of Nanoparticles

2016

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Abstract. The paper presents the results of an experimental study on propagation dynamics of the self-sustained evaporation front in a large volume of Freon-R21 with the addition of SiO 2 nanoparticles. The experimental data on propagation velocity and structure of evaporation fronts were obtained; the spectral analysis of fluctuations of the evaporation front interface was carried out. The characteristic frequencies and amplitudes of interface fluctuations were determined depending on the velocity of evaporation front propagation. It was shown that the addition of nano-sized particles significantly affects the front velocity and character of interface fluctuations.

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Section: Resultsmentioning

confidence: 99%