Fluidelastic instability of a tube array in two-phase cross-flow considering the effect of tube material

Huantong Liu; Jiang Lai; Lei Sun; Pengzhou Li; Lixia Gao; Danping Yu

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자료유형: 학술저널

저자정보: Huantong Liu Jiang Lai Lei Sun Pengzhou Li Lixia Gao Danping Yu

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제51권 제8호

발행연도: 2019.1

수록면: 2,026 - 2,033 (8page)

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Fluidelastic instability of a tube array is a key factor of the security of a nuclear power plant. An unsteady model of the ﬂuidelastic instability of a tube array subjected to two-phase ﬂow was developed to analyze the ﬂuidelastic instability of tube bundles in two-phase ﬂow. Based on this model, a computational program was written to calculate the eigenvalue and the critical velocity of the ﬂuidelastic instability. The unsteady model and the program were veriﬁed by comparing with the experimental results reported previously. The inﬂuences of void fraction and the tube's material properties on the critical velocity were investigated. Numerical results showed that, with increasing the void fraction of the two-phase ﬂow, the tube array becomes more stable. The results indicate that the critical velocities of the tube array made of stainless are much higher than those of the other two tube arrays within void fraction ranging from 20%to 80%.

참고문헌 (17)

참고문헌 신청

S. S. Chen / 1982 / Experimental and analysis of instability of tube rows subject to liquid crossflow / J. Appl. Mech 49:704~709

M. J. Pettigrew / 2001 / The effect of bundle geometry on heat exchanger tube vibration in Two-phase Cross Flow / Specl FSI Issue ASME J. Pressure Vessel Technol 123:414~420

C. Zhang / 2009 / Further study of quasi-periodic vibration excitation forces in rotated triangular tube bundles subjected to twophase cross flow / J. Press. Vessel Technol 131:031303-1~031303-8

D. Mitra / 2009 / Fluidelastic instability in tube arrays subjected to air-water and steam-water cross-flow / J. Fluids Struct 25:1213~1235

G. Ricciardi / 2011 / Fluidelastic instability in a normal triangular tube bundle subjected to air-water cross-flow / Journal of Pressure Vessel Technology 133:061301-1~061301-9

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