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双圆柱体低速并联入水过程空泡及运动特性试验研究

Translated title of the contribution: Tests for cavities and motion characteristics in process of two-cylinder in parallel water entry at low speed
  • School of Astronautics, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

To deeply study cavities evolution and motion laws in process of two-cylinder in parallel water-entry at low speed, tests for two-cylinder in parallel water-entry at low speed were conducted. The evolution mechanism of in parallel water-entry two-cavity was analyzed by comparing tests for a single cylinder water entry and those for two-cylinder in parallel water entry. The tests with different water-entry velocities were conducted to study the effects of water-entry velocity on cylinders' motion characteristics in process of them in parallel water-entry. Combined with the evolution law of cavities, the influence mechanism of cavities evolution process on cylinders' motion was analyzed. The results showed that in process of two-cylinder in parallel water-entry at low speed, cavities have obvious asymmetry; cylinders have lateral motion and excursion one under the asymmetric hydrodynamic action; cavities closure affects cylinders' excursion motion obviously, the motion characteristic curves of two-cylinder and two-cavity morphology have a good symmetry.

Translated title of the contributionTests for cavities and motion characteristics in process of two-cylinder in parallel water entry at low speed
Original languageChinese (Traditional)
Pages (from-to)42-49
Number of pages8
JournalZhendong yu Chongji/Journal of Vibration and Shock
Volume38
Issue number7
DOIs
StatePublished - 15 Apr 2019
Externally publishedYes

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