UC知道11.请帮忙翻译一下
来源：百度知道 编辑：UC知道 时间：2024/05/05 10:03:19
6. Conclusions
Numerical simulations have been performed with a model employing two- and three-dimensional grids to represent a pipeline x-junction. It has been successively considered an x-junction configuration with an angle between inlets equal to 90_. Comparison between numerical results and experimental data for this configuration shows a very good agreement.
Three different approaches have been used in the computing of turbulent mixing of two streams, i.e. Cartesian grid, body fitted coordinates and the Arbitrary Source Allocation Procedure which implies the use of Cartesian grid.
The ASAP method can be a promising method when complex geometries are required, which can lead to convergence problems caused by the non-orthogonality of cell.
The 2D approximation has shown to be a good approach for saving computational resources for this kind of analysis. For similar results than the 3D configuration, CPU time and the memory used are 20 times lower. This configurat
Numerical simulations have been performed with a model employing two- and three-dimensional grids to represent a pipeline x-junction. It has been successively considered an x-junction configuration with an angle between inlets equal to 90_. Comparison between numerical results and experimental data for this configuration shows a very good agreement.
Three different approaches have been used in the computing of turbulent mixing of two streams, i.e. Cartesian grid, body fitted coordinates and the Arbitrary Source Allocation Procedure which implies the use of Cartesian grid.
The ASAP method can be a promising method when complex geometries are required, which can lead to convergence problems caused by the non-orthogonality of cell.
The 2D approximation has shown to be a good approach for saving computational resources for this kind of analysis. For similar results than the 3D configuration, CPU time and the memory used are 20 times lower. This configurat
6 。结论
数值模拟进行了一个模型雇用两名和三维网格代表了管道的X交界处。它已先后审议了X配置交界的夹角等于90_入口。比较计算结果与实验数据显示此配置一个非常好的协议。
三种不同的方法已被用于计算的湍流混合的两个流，即直角坐标网格，身体坐标和任意源分配程序，这意味着使用直角坐标网格。
该ASAP的方法可以是一个大有可为的方法时，需要复杂的几何形状，从而导致收敛问题所造成的非正交性的细胞。
二维近似已经证明是一个很好的办法，节省计算资源，这样的分析。对于类似的结果比三维配置， CPU时间和内存使用的20倍降低。此配置可能具有极大的使用时，许多参数的数值模拟，必须改变。仅仅是为了验证情况下，超过50种不同的模拟实验进行。仿真进行了范围0.02 “定量” 2.0 。但是，不同的流动参数进行了测试，以确定其影响的结果。这些参数是：进口动能，管径，进水流速。差异低于4 ％ ，已观察到的模拟。
鉴于良好的业绩数值模式，不同的流动和几何参数是可以实现的。这项研究中，只有结角修改。
交界处的角度不同，在数值模拟显示了关键rQcrit值，其中两个相同的售票处运输量浓度。关键rQcrit随着交界角度加强。最大值为“ 135_往往定量_ 0.4 。与高的角度，压力损失，振动和正常应力高交界的角度观察。