The circular-hole rotating core fog nozzle has excellent atomization performance and been widely used in the realm of spray dust. As part this study, a mathematical model was developed for predicting Sauter mean diameter (SMD) nozzles type. coaction between SMD three influencing factors axial distance, water supply pressure, outlet investigated based on customized spray’s experimental platform ...

Cloud cavitation shows an unsteady periodic tendency under a certain flow condition. In a cavitating water jet flow with cavitation clouds, the cavities or the clouds produce high impact at their collapse. In order to make clear a mechanism of the periodic cavity behavior, we experimentally examine the behavior in a transparent cylindrical convergent-divergent nozzle using a high-speed video ca...

The ability of popular computational fluid dynamic (CFD) methods t o simulate the propagation of acoustic waves is assessed both theoretically and by numerical experiment. The schemes are used to model acoustic waves generated by a noise source situated at the aft end of a convergent-divergent nozzle. It is found that the acoustic signal that traverses up the nozzle has difficulty maintaining i...

In the most application of nozzle with gas-liquid two-phase flow, the quality of mixture in exhaust of nozzle is the most important parameter as well as the flow velocity. On the other hand, in some industrial application, such as water injection in forced induction (turbocharged or supercharged) internal combustion engine the spray quality is the main goal of designing. In this case and for im...

In the present study, flow–structure interaction of a starting jet through flexible nozzle is experimentally investigated, with focus on optimal flexibility for thrust generation. Water slug impulsively accelerated cylindrical nozzle, fabricated silicone rubber varying flexibility. general, modifies vortical structure and augments jet. The measurement surface deformation revealed that back-and-...