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...

Compressible gas flow inside a convergent-divergent nozzle and its exhaust plume atdifferent nozzle pressure ratios (NPR) have been numerically studied with severalturbulence models. The numerical results reveal that, the SST k–ω model give the bestresults compared with other models in time and accuracy. The effect of changes in value ofdivergence half-angle (ε ) on the nozzle performance, thru...

Abstract Single-fluid nozzles and dual-fluid are the two typical jet crushing methods used in spray dust reduction. To distinguish atomization mechanism of single-fluid improve control efficiency at coal mining faces, characteristics reduction performance were quantitatively compared. Results experiments show that, as water supply pressure increased, angle swirl nozzle reaches a maximum 62° 6 M...

As an energy-saving technology, the ejector is widely used in heating, aerospace, and chemical industry. The performance closely related to its structure, so structure of needs be optimized. In present study, single-factor optimization first carried out, main structural parameters affecting are screened out. Then, response surface method analyze combined effect multiple ejector, find out optima...

Abstract The performance of a dual evaporator cycle using ejector is compared with conventional employing pressure reducing valve. In both the systems, high temperature considered as flooded evaporator, thus separator employed after evaporator. However, low kind dry comparison i.e., and assisted, done for same cooling capacities dryness fraction at exit R134a, R152a, R1234yf refrigerants. effec...