TY - JOUR
T1 - 3D numerical investigation of bubble upflow condensation behaviors during subcooled flow boiling in mini-channel with VOSET
AU - Jin, Shuqi
AU - Chen, Yujie
AU - Ling, Kong
AU - Xu, Weidong
AU - Tao, Wen Quan
N1 - Publisher Copyright:
© 2024
PY - 2025/1
Y1 - 2025/1
N2 - In the subcooled flow boiling process, bubble condensation is an inevitable basic phenomenon. This paper studies the condensation phenomenon of the single, double vertical/horizontal saturated bubbles rising in a three-dimensional mini-rectangular channel based on the interface capture method VOSET (coupled volume-of-fluid and level set method) and the phase transition model. Bubble condensation behaviors are investigated at different initial diameters, inlet velocity distributions, subcooling temperatures, bubble gaps, and arrangement for the two-bubble condensing system especially. The effects of these parametric on bubble motion trajectory, shape evolution, volume variation, and condensation rate are presented. The numerical results indicated that the initial bubble size and liquid subcooling play an important role in influencing the shape and volume variation of condensing bubble behaviors significantly, while the inlet velocity distribution only affects bubble motion trajectory. Furthermore, the interaction and coalescence between the bubbles will affect the bubble behaviors and the condensation rate. Finally, the condensation heat transfer coefficients at the bubble surfaces for different cases simulated in this paper are presented, seemingly first in the literature.
AB - In the subcooled flow boiling process, bubble condensation is an inevitable basic phenomenon. This paper studies the condensation phenomenon of the single, double vertical/horizontal saturated bubbles rising in a three-dimensional mini-rectangular channel based on the interface capture method VOSET (coupled volume-of-fluid and level set method) and the phase transition model. Bubble condensation behaviors are investigated at different initial diameters, inlet velocity distributions, subcooling temperatures, bubble gaps, and arrangement for the two-bubble condensing system especially. The effects of these parametric on bubble motion trajectory, shape evolution, volume variation, and condensation rate are presented. The numerical results indicated that the initial bubble size and liquid subcooling play an important role in influencing the shape and volume variation of condensing bubble behaviors significantly, while the inlet velocity distribution only affects bubble motion trajectory. Furthermore, the interaction and coalescence between the bubbles will affect the bubble behaviors and the condensation rate. Finally, the condensation heat transfer coefficients at the bubble surfaces for different cases simulated in this paper are presented, seemingly first in the literature.
KW - Bubble behaviors
KW - Bubble condensation
KW - Interface tracking method VOSET
KW - Numerical simulation
KW - Subcooled flow boiling
UR - http://www.scopus.com/inward/record.url?scp=85208670684&partnerID=8YFLogxK
U2 - 10.1016/j.ijmultiphaseflow.2024.105040
DO - 10.1016/j.ijmultiphaseflow.2024.105040
M3 - Article
AN - SCOPUS:85208670684
SN - 0301-9322
VL - 182
JO - International Journal of Multiphase Flow
JF - International Journal of Multiphase Flow
M1 - 105040
ER -