关键词: 微藻能源, 敞开式跑道池, 计算流体力学, 粒子追踪模型

Abstract: The flow profile in an open raceway photo-bioreactor was studied by employing computational fluid dynamics（CFD）. The effects of the inducing baffle structure，air inlets spacing along length direction and width direction were investigated. The calculated results showed that an open raceway photo-bioreactor has maximum velocity，minimum dead zone ratio and minimum power input when the inducing baffles angles are 180°，and extending length ?L/W is 0.5. The average velocity magnitude along the light direction is maximum when the spacing along width direction ?Y/W1 is 1/4，and the spacing along length direction ?X/L1 is 0.025. Light intensity，light and dark frequency of algal cells are derived from particle trajectories with and without air by employing particle tracking model （PTM）.

Key words: algae energy, open raceway pond, computational fluid dynamics（CFD）, particle tracking model （PTM）