电流流过金属，金属有电阻，不可避免地使金属发热，温度升高。在变压器、电机等的铁芯中，由于涡流发热，还会引起铁芯外部材料绝缘性能下降，甚至破坏绝缘造成事故。铁心发热，还使一部分电能转换为热能白白浪费，这种电能损失叫涡流损失。
该公式直接反映出关键参数与涡流损失的关系，据此提出了减少涡流损失的措施。
The formulation reflects the relation between the key parameter and the vortex loss, on the basis of which the measure of reducing vortex loss is carried out.
由于喷头中有了导流体，避免了涡流的产生与剪切层的分离，从而大幅度地减少了喷头的能量损失。
In the presence of the flow deflector, the generating of the vortices and the separating of the shear layer are avoided thereby the energy loss of the jet nozzle is reduced considerably.
同时，可以降低对进气涡流的要求，增加气门流通面积，减少流动损失。
Besides, the strength of the intake swirl can be less, that will increase valve area and reduce the loss of flowing. This combustion system also c...
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