For a combustion-based thermophotovoltaic generator (TPV), the baffle-induced reacting flows are numerically investigated in the micro combustor with a multihole baffle representing a mixed feature of bluff body and multiple jets. The lobed flow feature is realized by the momentum difference between fuel and air streams and the baffle wall, not the geometrical conditions like a lobed nozzle. Compared with the H₂–air combustor, the lobed flame and the votical structure are enhanced for the CH₄–air combustor. To analyze the lobed structure, the lobe intensity and the equivalent perimeter are defined for the stoichiometric mixture line. The maximum lobe intensity is observed at the beginning zone of flame, whereas the equivalent perimeter is increased near the active reaction zone. As the baffle thickness decreases, the lobe structure is enhanced due to the increased vortices. Also, a close relationship between the maximum vorticities at the baffle exit and the maximized lobe structure is observed. The intensified lobe structure contributes to a shorter flame length and more efficient combustion, resulting in increased radiation available for a micro-TPV system. When the lobe structure is enhanced, the high emitter efficiency for an energy conversion device is obtained as 0.319–0.326 for the H₂–air combustor.

对于基于燃烧的热光伏发电机 (TPV)，挡板引起的反应流在微型燃烧器中进行了数值研究，其中多孔挡板代表了钝体和多个射流的混合特征。叶状流特征是通过燃料和空气流之间的动量差以及挡板壁实现的，而不是像叶状喷嘴那样的几何条件。与H _{2空气燃烧器相比，CH 4}增强了叶状火焰和火焰结构——空气燃烧器。为了分析叶状结构，叶状强度和等效周长被定义为化学计量混合物线。在火焰的起始区观察到最大叶强度，而在活性反应区附近等效周长增加。随着挡板厚度的减小，叶片结构由于涡流的增加而增强。此外，还观察到挡板出口处的最大涡量与最大叶片结构之间的密切关系。强化的叶片结构有助于更短的火焰长度和更有效的燃烧，从而增加可用于微型 TPV 系统的辐射。当叶状结构增强时，能量转换装置的高发射极效率对于 H _{2为 0.319-0.326}——空气燃烧器。