因此，适当调整燃烧室的旋流数可以降低NO排放。
Therefore by regulating swirl number of combustor NO emission caw be reduced.
在旋流场截面中最大旋流数符合简化理论的分析关系。
The maximum value of swirl number in the flow sections is agreed with the simplified theoretical relation.
自由旋流对传热有明显的强化作用，这种作用与旋流数有关。
The free swirl flow obviously enhances the heat transfer and the enhancement is related to S_w.
计算了外射流在不同旋流数时及内外射流流量比不同时燃烧室内的速度分布。
Predictions of effects of swirls and the rate of flows on velocity are obtained.
应用五孔感头测定沿程截面内气流的切向角、轴向速度、气流静压和旋流数的分布。
A five hole probe is used for measuring the tangential Angle of flow, axial velocity, static pressure of flow and swirl number in the flow sections of the conveying system.
测量了在不同的一次风旋流数下，气体的时均温度、O2、CO2、CO和NO浓度的分布。
The distributions of gas temperature, O2, CO2, CO, and NO concentrations were measured under different swirl numbers for the primary air.
试验研究了主、径向涡流器旋流数、面积比、套筒扩张角等参数对双旋流进气装置冷态流场的影响。
The effects of swirl number of primary swirler and radial swirler, area ratio and sleeve divergence angle on the cold flow field of double swirl air intake were investigated.
利用相位多普勒仪（PDPA）系统研究了不同旋流数下突扩旋风筒内气粒两相湍流特性的变化规律。
The dilute gas-particle flows in a cyclone chamber with axial and tangential inlers of different swirl numbers were studied by using a Phase-Doppler Particle Anemometer(PDPA).
为了解决电站锅炉炉膛结渣的问题，研究了对结渣有重要影响的颗粒碰撞数受二次风旋流强度影响的规律。
The effect of the secondary air swirl number on the number of particle impacts which affects slagging was studied to reduce slagging in utility boilers.
运用嵌套网格技术研究了浆叶的厚度和扭转对低雷诺数旋翼流场的影响。
The influence of blade thickness and torsion on the flow field at low Reynolds number for rotor in a hover is studied with the Chimera grid technique.
运用嵌套网格技术研究了浆叶的厚度和扭转对低雷诺数旋翼流场的影响。
The influence of blade thickness and torsion on the flow field at low Reynolds number for rotor in a hover is studied with the Chimera grid technique.
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