UC知道8.请帮忙翻译一下
来源：百度知道 编辑：UC知道 时间：2024/06/15 13:24:14
4. Validation case
Several experimental measurements have been performed for a pipeline x-junction with an angle a = 90_ so as to validate the numerical model. Experimental results consisted of mean pressure gradients, concentrations, and volumetric flows.
To test the validity of a 2D approximation, 2D and 3D simulations were performed with the characteristics shown in Table 2. A large number of simulations for much higher and lower volumetric flows than those shown in Table 2 were performed, maintaining similar values of rQ. The results differ less than 3% from the ones obtained using the original values specified in Table 2. This shows independence of the scalar concentration with the range of the here studied volumetric flows.
The velocity field for the same inlet volumetric flows at both pipes, rQ = 1.0, is illustrated in Fig. 4. The momentum exchange at the junction deforms the velocity profiles and forces the passive scalar toward outlet2. In spite of this strong m
Several experimental measurements have been performed for a pipeline x-junction with an angle a = 90_ so as to validate the numerical model. Experimental results consisted of mean pressure gradients, concentrations, and volumetric flows.
To test the validity of a 2D approximation, 2D and 3D simulations were performed with the characteristics shown in Table 2. A large number of simulations for much higher and lower volumetric flows than those shown in Table 2 were performed, maintaining similar values of rQ. The results differ less than 3% from the ones obtained using the original values specified in Table 2. This shows independence of the scalar concentration with the range of the here studied volumetric flows.
The velocity field for the same inlet volumetric flows at both pipes, rQ = 1.0, is illustrated in Fig. 4. The momentum exchange at the junction deforms the velocity profiles and forces the passive scalar toward outlet2. In spite of this strong m
4 。验证情况
一些实验已经完成了管道的X交界角1 = 90_ ，以验证数值模式。实验结果包括平均压力梯度，浓度，体积流量。
要测试的有效性二维近似，二维和三维模拟进行的特点列于表2 。大量的模拟更高和更低的体积流量比表2所示进行，保持类似的价值定量。结果差异小于3 ％ ，是来自其他获得使用的原始值中指定表2 。这表明独立的标量浓度范围在这里研究的体积流量。
速度场为同一入口体积流量都管，定量= 1.0 ，则说明图。 4 。交流的势头交界变形速度概况和部队的被动标量的outlet2 。尽管这样强劲的势头交流，意味着大量的速度保持不变，之前和之后的每一个路口管。
正如所料，动荡增加交界，达到最高的回流区，从而被动标量混合。图。 5显示了纵向演变意味着湍流动能。无论是高水平的动荡交界地带，这里的标管道运输从一个到另一个似乎是独立的。
这动荡的独立性已通过测试的模拟与价值观的K和电子商务10倍，并低于获得的实证关系，均衡器。 （ 4 ）和（ 5 ） 。由于高湍流，浓度越均匀的液体后的交界处，但其价值仍然是基本相同的插座。
对于这一审定情况下，超过70 ％的浓度传入从inlet1是疏散虽然outlet2 。交界处后，在管道的标1旅行主要沿高速区。这表现在图。 6 ，在数值模拟和实验结果表明非常好的协议。
当值定量的增加，流量outlet2也增强，与相应的高浓度值，二氧化碳。 Q和ç概况网点都作为一个功能的定量中显示图。 7 。一个临界点是观察图。 7顶端，那里的商店都集中的是相同的。这一点，发现了价值定量_ 0.23 ，为角1 = 90_ 。围绕这一点，预计将获得的浓度均匀性分支机构之间流动。在许多应用中，这个关键的一点是有关的实用工具。