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- The frictional pressure drop can be calculated by Chisholm equation, and the constant C in the equation depended on the quality. 可以用奇母霍斯关系式来计算窄环隙内的两相摩擦压降,式中的常数可由含气率计算
- An experimental study of frictional pressure drop characteristics of R410A-oil mixture flow boiling inside straight and C-shape horizontal enhanced tubes was performed. 实验研究了环保制冷工质R410A-润滑油混合物在直强化管和C形强化管内流动沸腾的摩擦压降特性。
- For upward churn flow, it is found that the relationship between frictional pressure drop and venturi pressure drop can be calculated by Martinelli parameter X. 在块状流条件下,推导了利用马丁内里参数计算垂直上升管摩擦压降与文丘利管节流压降间关系的公式,进而实现了截面含气率的测量。
- To calculate discharge port pressure,this article considers the influence on frictional pressure drop in the gas and liquid two-phase flow between rod and tubing owing to rotation of rods. 在计算排出口压力计算过程中,考虑了由于抽油杆柱旋转引起杆管环空气液两相流摩阻的影响。
- Effects of superficial gas/liquid velocities and water volume fraction on the frictional pressure drop of three-phase flow in vertical downward pipe (40 mm i. d. ) are experimentally investigated. 对垂直下降钢管内油气水三相流动的摩擦压降受折算液速、折算气速和油水混合物中含水率的影响进行了试验研究。
- Keywords high saturation temperature fluid;flow boiling;heat transfer coefficient;friction pressure drop;cumene; 高沸点工质;流动沸腾;换热系数;摩擦压降;异丙苯;
- In the experiment, with the increase of water cut, the frictional pressure drops decrease sharply when water disperses in oil but hardly change when oil disperses in water. 本实验范围内,当管内液相处于油包水时,摩擦压降随含水率的增大急剧减小,当液相处于水包油时,随着含水率的增大,流动摩擦压降随含水率的增大变化平缓。
- friction pressure drop 摩擦压降
- Watch pressure drop on pressure gauge. 手表压力在压力标准度量上降低。
- Valve exhibits high pressure drop. 阀门出现高压降。
- Influence of surfactant on frictional pressure drop in manifold microchannel 表面活性剂添加对歧管式微通道阻力特性的影响
- Frictional Pressure Drop of Oil-Water-Air Three-Phase Flow in Horizontal Pipes 水平圆管内油气水三相流摩擦阻力特性的实验研究
- Friction factor is one of the key factors restricting the development of multiphase pipe flow and one of important factors for pressure drop calculation. 沿程摩阻因数是制约多相管流发展的关键,摩阻因数是压降计算的重要内容之一,其计算的准确性直接决定了压降计算的准确性。
- A new model to predict pressure drop due to friction between gas-solid suspension and internal wall in the fully developed region of CFB downers was developed. 结果表明,在下行床的充分发展段,气固两相流与管壁间的摩擦导致表观颗粒浓度显著小于真实颗粒浓度;
- DID THE PRESSURE DROP TO 0 PSI AND A "NO DRIVE" CONDITION OCCUR? 压力是否降至0PSI而且条件"NO DRIVE"出现?
- However, the pressure drop occurs almost completely in the plug. 然而,压力降几乎完全发生在多孔塞中。
- Drier operates in either flow direction with low pressure drop. 在任何一方向都可操作应用。
- Presents the theoretical model of pressure drop for flexible duct. 摘要介绍了柔性风管压力损失的理论模型。
- They are commonly used where a minimum pressure drop is important. 通常用在要求压降最小的应用场合。
- FRICTIONAL PRESSURE DROP OF GAS-LIQUID TWO-PHASE FLOW IN SMALL HORIZONTAL RECTANGULAR CHANNELS 水平矩形小通道内气-液两相流摩擦压降的研究