Direct numerical simulation of flow boiling in a finned microchannel

作者：Lee Woorim; Son Gihun^*; Yoon Han Young

来源：International Communications in Heat and Mass Transfer, 2012, 39(9): 1460-1466.

DOI：10.1016/j.icheatmasstransfer.2012.08.005

• Direct numerical simulation
• Finned surface
• Flow boiling
• Level-set method
• Microchannel

Direct numerical simulations of bubble growth and heat transfer associated with flow boiling in a finned microchannel are performed by solving the conservation equations of mass, momentum and energy in the liquid and vapor phases. The phase interfaces are determined by a sharp-interface level-set method which is modified to include the effect of phase change at the liquid-vapor interface and to treat the no-slip and contact-angle conditions on the immersed solid surface of fins. The effects of fin height, spacing, and length on the flow boiling in a microchannel are investigated to find the better conditions for heat transfer enhancement.

• 出版日期2012-11