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1)  Turbulent coherent structures
湍流拟序结构
2)  Turbulence structure
湍流结构
1.
The turbulence structure control by adding component parts similar to the large eddy break up device and riblets in the hydrocyclone was investigated by studying the characteristics of the turbulent pressure field,and the relationship between turbulence structure variation and energy consumption reduction was also studied.
本文将采用设置类似大涡破碎器和流向棱纹面的方法,对旋流器内的湍流结构进行控制,并研究其湍流结构的变化与能量耗损降低的关系。
2.
These results show that turbulence structure generated by tumble has the characteristics of larger scale and lower frequency, and therefore autocorrelation coefficient and intergal time scale of turbulence are considerably increased when tumble breaks up at the end of compression.
本研究在一台四气门汽油机上对缸内滚流运动进行了LDA测量,通过改进测试系统提高了数据率,用低通滤波的单一循环分析法计算了湍流结构参数。
3.
As a cure of this shortcoming, it is suggested that the traditional ASM could be corrected to be a K-E LAASM, in which the boundary conditions of turbulence structure can be specified independent of the mean velocity profile and turbulence intens.
为此本文提出一能独立加入有关湍流结构的边界条件的K-ELAASM,问题得到圆满解决。
3)  turbulent structure
湍流结构
1.
Experimental study on turbulent structure of flow over sand ripples in open channel;
明渠沙纹床面湍流结构实验研究
2.
Due to the extreme complexity of turbulent structure, there is no way to solve the problem theoretically.
由于湍流结构的极端复杂性,用解析法对它求解目前是不可能的。
4)  structural turbulence
结构湍流
5)  turbulent microstructure
湍流微结构
6)  Microphysical turbulent structure
微湍流结构
补充资料:称拟网状结构
分子式:
CAS号:

性质:高聚物分子链间可以相互渗入任意缠绕住,称为缠结。高聚物分子量超过某一临界值后,熔体或浓溶液中分子链间可相互纠缠绞结成勾结点亦称为缠结点,在分子热运动的作用下,勾结点可以滑移、解体或重建,整个体系处在动态平衡中,结果整个熔体或浓溶液具有瞬变的交联空间网状结构,称为缠结分子网或称拟网状结构。这种链缠结是高聚物熔体或浓溶液黏度很高的原因,也是解释高聚物黏度随切变速率变化规律的依据。在低切变速率区,被剪切破坏的缠结来得及重建,拟网状结构密度不变,因而黏度保持不变,熔体或浓溶液处于第一牛顿区;当剪切速率逐渐增加到达一定值后,缠结点被破坏的速度大于重建的速度,黏度开始下降,熔体或浓溶液出现假塑性;而当剪切速率增加到缠结破坏完全来不及重建,黏度降低到最小值并不再变化,这就是第二牛顿区。

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