@Article{fdmp.2020.06528,
AUTHOR = {Ping Yu, Chuanhui Huang, Lei Liu, Huafeng Guo, Chengqiang Liu},
TITLE = {Heat and Mass Transfer Characteristics of Alkali Metals in a Combined Wick of High-Temperature Heat Pipe},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {16},
YEAR = {2020},
NUMBER = {2},
PAGES = {267--280},
URL = {http://www.techscience.com/fdmp/v16n2/38661},
ISSN = {1555-2578},
ABSTRACT = {To study the heat and mass transfer characteristics of alkali metals in a 
combined porous wick in high-temperature heat pipes, a three-dimensional (3-D) 
numerical model is constructed by using the finite volume method, Darcy’s theory, and 
the theory of local thermal equilibrium. The research finds that the pressure drop of 
fluids flowing through a combined porous wick exhibits an increasing trend with 
increasing flow velocity at the inlet and with decreasing permeability of the porous 
media; a combined porous wick of lower porosity and permeability and larger fluid 
velocity at the inlet is found to have a less uniformly distributed fluid velocity; the 
different temperatures of the fluid at the inlet mainly influence the inlet section of the 
computational model, while having negligible effect thereon in the axial direction (this 
embodies the thermal homogeneity of such heat pipes). The result reveals that the 
temperature change in fluids at the inlet does not significantly affect the overall 
temperature distribution in a combined wick.},
DOI = {10.32604/fdmp.2020.06528}
}