通过将喷孔由圆形改变为椭圆形,从而大大地增加了液体射流的2阶初始扰动。理论分析表明,此类液体射流雾化后的截面形状应近似为椭圆形。因此能够增强与周围空气的混合能力。实验充分地肯定了橢圆喷霉的混合能力。同时发现,在相同的喷射条件下,椭圆喷雾所形成的粒径要比相同喷孔截面的圆形喷雾有明显减小。 By changing the orifice from circular to elliptical, the 2 nd order initial perturbation of the liquid jet is greatly increased. Theoretical analysis shows that the cross-sectional shape of such liquid jet after atomization should be approximately elliptical. Therefore, it is possible to enhance the mixing ability with the surrounding air. Experiments fully affirmed the mixing ability of elliptic mold. It is also found that under the same spraying conditions, the diameter of the elliptical spray is obviously smaller than that of the circular spray with the same spray hole cross section.