1) resistance similarity
阻力相似
1.
Based on the requirement of resistance similarity,similarity scales of sediment movement were derived and unified,such as those of bed material size,suspended material size,rate of transport of bed load and concentration of suspended load.
根据阻力相似要求,导出泥沙运动相似比尺,如床沙起动粒径比尺,悬沙粒径比尺,推移质输沙率比尺和悬移质含沙量比尺等。
2.
In similarity of flow motion,the velocity scale in gravity similarity is not consistent with the one in resistance similarity,and the resistance is related to grain size and flow.
在水流运动相似条件中弗氏数相似和阻力相似的流速比尺形式不一致,且水流阻力是床沙粒径和水流强度的函数;在泥沙运动相似中有关粒径比尺形式也不一致,而且它们又与水流条件有关,错综复杂,使得泥沙粒径比尺的确定难度很大,不得不根据研究问题的性质对基本相似条件有所侧重和取舍,选取主要的作为设计依据,次要的允许有一定偏离。
3.
In the river sediment model with a movable bed, there are two key problems which are how to think about interaction of water and sediment and how to proceed the large distorted roughening to meet resistance similarity.
在河流动床泥沙模型中,如何考虑水沙之间的相互作用,以及在模型动床上如何进行大变态加糙,以满足河流阻力相似,一直是难以解决的两个关键问题。
2) dynamic similarity
动力相似
1.
The dynamic similarity among three solar chimney models is analyzed,and the infinite volume method was used to validate the similarity among dimensionless parameters of these models.
分析模型间的动力相似性能,并用有限体积法数值验证3个模型的无量纲参数的相同规律。
3) thermal similarity
热力相似
1.
This study introduced the tidal current simulation of the physical model on cooling water engineering of Zhanjiang Aoli power plant,and compared the tidal current and thermal similarity verification with the data of field observation.
介绍了湛江奥里油发电厂冷却水工程物理模型试验的潮流模拟,并通过原体观测资料对模型的流场和热力相似性进行了验证,其成果为进一步对电厂相关问题进行物理模型研究提供了保证。
4) gravity similarity
重力相似
5) stress similitude
应力相似
补充资料：肺循环阻力(或全肺阻力)
肺循环阻力(或全肺阻力)
pulmonary circulation resistance
血液在肺部血管内流动时和血管壁之间的摩擦力和血液内部的摩擦阻力。肺动脉管壁较薄，分支短而管径大，故肺动脉的可扩性较大，对血流的阻力很小，仅0.12PRU(外周阻力单位)。肺循环动脉部分总的阻力和静脉部分总的阻力相等，故血液流动时在动脉部分的压力降落和静脉部分的压力降落相等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条