疏水表面减阻的格子Boltzmann方法数值模拟OA北大核心CSCDCSTPCDSCI
Numerical investigation on drag reduction with hydrophobic surface by lattice Boltzmann method
采用格子Boltzmann方法的多松弛模型和Shan-Chen多相流模型对雷诺数为100的疏水表面方柱绕流进行了数值模拟, 分析了疏水表面接触角和来流含气率对方柱绕流流场的影响. 研究结果表明: 疏水表面接触角一定时, 来流含气率在一定范围内, 疏水表面具有减阻的能力, 超出这一范围时会出现阻力系数、升力系数升高的现象,同时在方柱近壁面处伴随涡的形成产生了气团脱落;当来流含气率处于适当水平时,接触角越大, 绕流物体近壁面处含气率越稳定, 减阻效果…查看全部>>
In recent years, hydrophobic surface has attracted much attention for its potential applications in flow drag reduc-tion. This article focuses on the drag reduction mechanism of hydrophobic surface by the multi-relaxation-time scheme and the Shan-Chen multiphase model of lattice Boltzmann method. At first, we validate our method through the mul-tiphase cases of wall adhesion effect and the single-phase cases of flow around a square column, showing that the r…查看全部>>
张娅;潘光;黄桥高
西北工业大学航海学院, 西安 710072西北工业大学航海学院, 西安 710072西北工业大学航海学院, 西安 710072
格子Boltzmann方法疏水表面两相流减阻
lattice Boltzmann methodhydrophobic surfacetwo-phase flowdrag reduction
《物理学报》 2015 (18)
257-266,10
国家自然科学基金(批准号: 51279165, 51479170)资助的课题. Project supported by the National Natural Science Foundation of China (Grant Nos. 51279165, 51479170).
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