Flintwork

Garton, Daryl

doi:10.1017/s0079497x00078798

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Stretching Of Cavitation Micropores Under the Influence Of E...1

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2013

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“…The difference between the forces acting on the walls of the pore of the radius b in the directions z and r are equal to: Thus, in the considered case, the tensile strength on the pores along the field is 5 times higher than the force acting in the radial direction. Therefore, under the action of electrostriction forces, the pores will be stretched mostly along the electric field, which is consistent with observations for the bubbles in dielectric liquids [21][22][23][24][25].…”

Section: Stretching Of Cavitation Micropores Under the Influence Of E...supporting

confidence: 89%

Dielectric fluid in inhomogeneous pulsed electric field

Shneider

Pekker

2013

Phys. Rev. E

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We consider the dynamics of a compressible fluid under the influence of electrostrictive ponderomotive forces in strong inhomogeneous nonstationary electric fields. It is shown that if the fronts of the voltage rise at a sharp, needle-like electrode are rather steep (less than or about nanoseconds), and the region of negative pressure arises, which can reach values at which the fluid loses its continuity with the formation of cavitation ruptures. If the voltage on the electrode is not large enough or the front is flatter, the cavitation in the liquid does not occur. However, a sudden shutdown of the field results in a reverse flow of liquid from the electrode, which leads to appearance of negative pressure, and, possibly, cavitation.

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Section: Stretching Of Cavitation Micropores Under the Influence Of E...supporting

confidence: 89%