Title of article :
Numerical study of bubble generation and transport in a serpentine channel with a T-junction
Author/Authors :
Kang، نويسنده , , Simo and Zhou، نويسنده , , Biao، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Abstract :
The two-phase flow problem is one of the most critical challenges for direct methanol fuel cells (DMFC). With carbon dioxide generated in the anode catalyst layer, a bubble that could not be removed from the flow channel would hinder the oxidation reaction. In this paper, bubble generation and flow in a micro-serpentine channel is modeled using a multi-phase three-dimensional Navier–Stokes plus volume of fluid (VOF) method. The bubble generation process, which results from the gas–liquid flow and the effects of surface tension and viscosity, are discussed and validated by a comparison with a serious of experimental results. The results prove that the VOF method is an effective method to simulate flow fields where the bubble flow phenomena exist, such as the two-phase flow fields in DMFCs.
Keywords :
Serpentine , Direct methanol fuel cell , Volume of Fluid , VISCOSITY , Bubble , Surface Tension
Journal title :
International Journal of Hydrogen Energy
Journal title :
International Journal of Hydrogen Energy