基于流体分析的三维海流传感器的研究  

Numerical Simulation of the Force Institution of Three-Dimensional Current Sensor

作　　者：鲍艳艳 王勇[1] 王云燕[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《机械设计与制造》2014年第11期177-180,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(41076061)

摘　　要：应用流体分析软件Fluent,采用分块网格划分,选择层流模型,不可压缩的N-S方程,对低雷诺数下不同流速不同攻角的圆球和薄圆盘模型黏性绕流场进行仿真计算。对圆球阻力及其系数的仿真值与实验值进行对比,验证了仿真计算结果的可靠性,得到了可靠的模型计算域和参数设置方法。重点分析了薄圆盘所受阻力、升力的变化趋势,得到了一定的变化规律。结果表明:在相同边界条件下,由相同特征尺寸的圆球与圆盘的绕流仿真结果对比可知,圆球所受阻力明显大于薄圆盘所受阻力,薄圆盘均匀纵向绕流中其升力更明显,由此提出了三维海流传感器的研究方案。The numerical simulation for viscous flow field around a sphere model and a thin disk with different flow velocity and attack angles for low Reynolds number was carried out by using the fluid analysis software Fluent, selecting sub-block meshing, laminar flow model and incompressible N-S equations. Compared the simulation value of drag on the sphere and its coefficient with experiment value, verifying the reliability of the simulation results and acquiring the reliable model calculation domain and the parameter setting method. The variation trend of the drag and lift on the thin disk was analyzed detailedly, getting some certain change rules. Resuhs showed that： Under the same. boundary condition, comparing the simulation results of the same feature size on the sphere and the thin disc, the drag on the sphere is significantly greater than that on the thin disk, the lift on the thin disc more evident in the uniform longitudinal flow field, then putting forward the research scheme of the three-dimensional current.

关 键 词：圆球绕流 薄圆盘绕流 流体分析 海流传感器 

分 类 号：TH16[机械工程—机械制造及自动化] O357.1[理学—流体力学]