1) thermal drag
热阻力
1.
Based on the theory of thermofluid dynamics and the characteristics of mine fire,the thermal drag in the combustion zone of mine fire is studied, and formulae of thermal drag coefficients for inclined (or vertical)and horizontal roadways are given.
根据热流体学理论，结合矿井火灾特点研究了矿井火灾燃烧区产生的热阻力，得出了倾斜（或垂直）巷道及水平巷道内火灾燃烧区热阻力系数的表达式，还给出了两种井下固体可燃物在水平巷道内燃烧时热阻力系数随无因次加热准则变化的实验结果。
2.
A formula of thermal drag was firstly established based on the revised concept,and then the relation between roundabout flow resistance,heat release rate(HRR) and airflow velocity was deduced.
首先在修正的热阻力概念基础上建立热阻力的表达式,然后推导绕流阻力与火灾规模和风速的关系式,最终建立比较严谨的火区阻力实用公式,并得到数值模拟的验证。
3.
Numerical simulation of pressure field directly proves the existence of thermal drag and indicates that the value of traditional thermal drag is much larger than the real loss of energy.
以隧道火灾为背景,对一维加热管流中的热阻力进行了研究。
2) thermal resistance
热阻力
1.
By the fullscale test of unsteady-flow fire in tunnel, applying aerodynamics of one-dimensional compressible unsteady-flow the relation between thermal power and thermal resistance in burning zone was analyzed, and its calculational methods were discussed.
以全尺寸非稳定流巷道火灾试验数据为依据,应用一维可压缩非稳定流理论分析了燃烧区热动力与热阻力的关系及其计算方法;研究表明:在近水平或水平巷道的火灾中,除了膨胀热阻力和黏性热阻力以外,还存在着垂直于流动方向的横向浮升阻力;在试验条件下,膨胀热阻力占30%～35%,黏性热阻力占20%～30%,横向浮升阻力占35%～55%。
2.
According to the fundamental theory of thermodynamics, thermal fludics and fluid mechanics, combined with the air flow moving characteristics, the coupled equation of fundamental theory which is suited to air flow movement in high temperature and humidity mine is derived, thermal resistance concept is led in and the formula for calculating thermal resistance is derived.
根据热力学、热流体学和流体力学等基本理论，结合高温、高湿矿井的风流运动特征，推导出适合于高温、高湿矿井的风流运动基本理论方程组，并引入热阻力概念及推导出热阻力的计算公式。
3.
The concept of thermal resistance was introduced in pressure reduction calculation of foam pipe flow.
把热阻力的概念引入到泡沫管流的压降计算中,并根据质量守恒、动量守恒和能量守恒方程推导得出了泡沫流体管流的热阻力系数的计算公式。
4) heat transmission resistance
传热阻力
5) resistance to thermal shocks
热震阻力
6) heating transfer resistance
传热阻力值
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