欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用Realizable k-ε湍流模型，结合多孔介质模型模拟网衣，建立了模拟水流作用下平面网衣周围流场的三维数值模型。利用最小二乘法分析作用在甲而网农上的水流力与流速和冲角的关系，得到对麻的多孔介质系数，使得多孔介质区域具有与网农相同的阻水效果。运用该数值模犁模拟了水流作用下平面网衣周围的流场，并与物理模型试验结果边行了比较。比较结果表明，不同流速和冲角条什下讨‘算和试验获得的网衣周围流速值一致。证明了该数学模型村模拟嗍农蒯用流场的适用性。
英文摘要：
A three-dimensional numerical model combined the Realizable k-ε turbulence model and the porous media model is established to simulate the flow field around a fishing net under current. The unknown porous coefficients are determined from the experimental forces on the net and flow velocities and the angles of attack using the least square method. Therefore, the porous media act the same water-blocking effect as the net. This numerical model is applied for the simulation of the flow field around the net panel under current and the numerical results are compared with the data obtained by physical model tests. The comparison shows that the velocity data with various flow velocities and angles of attack. the flow field around a fishing net. magnitude of the numerical simulation agrees well with the experimental It is indicated that this numerical model is applicable for the simulation of
同期刊论文项目
同项目期刊论文
Using a time-domian higher-order boundary element method to simulate wave and current diffraction fr
Identification of hydrodynamic coefficients from experiment of vortex-induced vibration of slender r
Laboratory observations of wave evolution, modulation and blocking due to spatially varying opposing
Numerical Analysis on the Effects of Submerged Depth of the Grid and Direction of Incident Wave on G
Laboratory tests of vortex-induced vibrations of a long flexible riser pipe subjected to uniform flo
A three-index estimator based on active thermometry and a novel monitoring system of scour under sub
Application of Multiscale Fiber Optical Sensing Network Based on Brillouin and Fiber Bragg Grating S
Numerical analysis on ultimate pullout bearing capacity of drag embedment anchor based on elastic-pl
Scour monitoring system of subsea pipeline using distributed Brillouin optical sensors based on acti
期刊信息
位置：