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Forced Vibration of a Heated Wire Subjected to Nucleate Boiling

journal contribution
posted on 29.03.2019 by Christopher Staszel, Suman Sinha-Ray, Alexander L. Yarin
Vapor bubble nucleation during subcooled boiling on thin strip wire heaters and the resultant vibrations are studied experimentally. The results show how the subcooled boiling- induced vibrations (SBIV) are intrinsically related to the hydrodynamic flow induced near the heated wires. It is shown that the dominant force responsible for the vibrations in this case is imposed by the localized strong hydrodynamic flow rather than by the vapor recoil force. The dominant frequency of SBIV is the fundamental frequency of the wire, regardless of the individual departure frequencies of the nucleating vapor bubbles. The recorded wire vibrations are used to quantify the hydrodynamic flow. It is shown experimentally and theoretically that the flow fades exponentially with distance from the wire.

Funding

The authors are grateful to NASA for the support of this work through the Grant No. NNX17AF33G.

History

Citation

Staszel, C., Sinha-Ray, S., & Yarin, A. L. (2019). Forced vibration of a heated wire subjected to nucleate boiling. International Journal of Heat and Mass Transfer, 135, 44-51. doi:10.1016/j.ijheatmasstransfer.2019.01.101

Publisher

Elsevier

Language

en_US

issn

0017-9310

Issue date

01/02/2019

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