中文摘要：

研究了格子Boltzmann方法中实现曲边界条件的3种格式，对它们的精度和稳定性进行了分析和比较．通过二维Poiseuille流和等边三角域上空腔流的模拟，讨论了这3种格式的数值精度和稳定性．

英文摘要：

Three curved boundary treatments in the lattice Boltzmann method are studied. Numerical accuracy and stability are analyzed and compared. In simulating a two-dimensional Poiseuille flow and a driven cavity flow on an equilateral triangle, numerical accuracy and stability of the schemes are discussed.