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.
路丽睿，魏英杰，王聪，宋武超，刘凯航. 双圆柱体低速并联入水过程空泡及运动特性试验研究[J]. 振动与冲击, 2019, 38(7): 42-49.
LU Lirui WEI Yingjie WANG Cong SONG Wuchao LIU Kaihang. Tests for cavities and motion characteristics in process of two-cylinder in parallel water entry at low speed. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(7): 42-49.
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