Mass transfer coefficients almost increase linearly with increase in Reynold's number under laminar flow. 在层流状态下,吸附床的除湿传质系数随雷诺数近似线性增大。
Radial velocity component of water was measured directly by laser Doppler measurement in a transparent hydrocyclone, and an empirical formula of the radial velocity Reynold's number was derived from the dimensional analysis method. 采用激光多普勒测速原理直接测量了透明旋流器内的流体径向速度分量。通过因次分析方法导出了径向速度雷诺数的经验公式。
The Temperature Character of Reynold's Number 雷诺数的温度特性
The dimensionless equation of collection coefficient is firstly proposed by dimensional analysis showing that the collection coefficient is related to the Reynold's number of supercooled water droplet movement and the ration of wire diameter to droplet diameter. 收集系数与过冷却水滴运动的Re数和导线直径与过冷却水滴直径之比的Dr数有关。
At a certain time t, the Reynold's number Re ( t), the resistance coefficient A ( t) and the pressure loss can be calculated by corresponding formulas. 某一时刻t的雷诺数、阻力系数和沿程损失可用相应的公式计算;
For the same pipe diameter, the efficiency was increased with increasing Reynold's number. 在管径相同的条件下,流体的雷诺数增加,减阻效率增加;
For the prediction of turbulent flow fields, different turbulence models, such as high Reynold's number k-e model and renormalization group k-ε model, etc. 同时采用不同的湍流模型,如高雷诺数k-ε模型和重整化群k-ε模型等。
Through preliminary analysis, the author believes that Reynold's number defined by "effective viscosity" is an important parameter reflecting the effect. 通过初步分析认为,以有效粘度定义的雷诺数是反映这一影响的重要参数。