Therefore, cutting the purity of oxygen, volume, velocity, and oxygen flow shape on the gas cutting quality and cutting speed has important implications.
因此，切割氧的纯度、流量、流速和氧流形状对气割质量和切割速度有重要的影响。
Through numerical simulation, the characteristics of goaf flow field and gas transportation under J-shape and U-shape ventilation systems were analyzed.
通过数值模拟，对比分析了J型通风和u型通风条件下的采空区流场及瓦斯运移特征。
Results show that with the same oil amount, the new oil supply style needs a lower gas velocity in the inlet to shape the annular flow, and the oil drops will not appear in air flow.
在相同供油量情况下，新供油方式形成环状流需要的入口气相速度低，且气速增大时一般不会形成夹带液滴，能够实现较好的环状流流型。
This paper presents a study of diesel spray characteristics of spray shape and droplet diameter in a uniform flow field but at different gas velocities.
本文研究了柴油机喷雾在不同气体流速场中的喷雾结构特性和粒度特性。
The shape of the rib of low-temperature heat transfer section and balanced holes on the rib are beneficial to homogeneous flow of flue gas and discharging of condensed fluid.
低 温换热段肋片形状和肋片上的均压孔有利于烟气均匀流动和冷凝液的排除；
Gas-flow and heat-transfer in the wedge-shape air-gap of horizontal evaporation cooling motor is studied by numerical method and experiment.
本文通过数值和实验手段研究了卧式蒸发冷却电机楔形气隙中的流体流动、传热现象。
Gas-flow and heat-transfer in the wedge-shape air-gap of horizontal evaporation cooling motor is studied by numerical method and experiment.
本文通过数值和实验手段研究了卧式蒸发冷却电机楔形气隙中的流体流动、传热现象。
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