The scaling law of nozzle size on the aggressive intensity of the cavitating jet is discussed in reference [107]. 4.7. Water Qualities As cavitation is a phase-change phenomenon from liquid phase to gas phase, as mentioned above, the water temperature affects the aggressive intensity of the ...
In the initial region, jet velocity preserves its speed in a form of conus with a base at the nozzle exit. The highness of the conus (“Core” on Fig. 13) is independent of the jet velocity at the nozzle exit. Instead, it is proportional to its diameter and flow viscosity. Rajaratnam...
The injected liquid phase was charged through the injection nozzle. The applied electric field intensity was controlled by adjusting the potential value of the power supply, U, while the distance between electrodes were kept constant. The applied electric field intensity typically ranged from 0 kV...
The generated blast wave interacts with premixed jet flames that are stabilised over a thin fuel-air jet nozzle. The study is performed over a wide range of parametric space, varying the Reynolds number ( R e Re ) and normalised equivalence ratio ( Φ \Phi ) of the premixed jet and the...
Jet noise is measured using a high-frequency microphone set at 135 deg from the engine inlet, and normalized jet noise spectra are obtained based on AUjn law and Helmholtz number. For cases without afterburner, the normalized spectra agrees well regardless of the nozzle scale and total ...
Efforts to adapt and extend graphic arts printing techniques for demanding device applications in electronics, biotechnology and microelectromechanical systems have grown rapidly in recent years. Here, we describe the use of electrohydrodynamically induced fluid flows through fine microcapillary nozzles for ...
A simple scaling law for NOx emission index from hydrogen jet flames with no coaxial air in the laminar regime is developed. The scaling, based on the flame length, nozzle diameter and exit velocity, for the residence time in the laminar jet flames is derived. The normalized NOx emission ...
According to Boeing, the exhaust wake from modern jet engines can reach 375 miles per hour just behind the engine exhaust nozzle. And even 150 feet behind the engines, wind blasts can reach up to 200 miles per hour. That high-speed blast can make a wind turbine spin like crazy, ...
Second-order structure functions, autocorrelations of the dissipation rate, and spectra of both the longitudinal velocity fluctuation and the passive temperature fluctuation are measured at a distance of 40 diameter downstream from the nozzle exit. All the scaling range exponents are influenced by the ...
The nozzle that we used for the gas jet is a Laval type design to achieve supersonic gas outlet velocity50. The orifice was rectangular: 1 mm wide and 300 μm long with a throat of 300 × 300 µm2 located 3 mm below the opening. Before the experiment, we performed 3D opt...