This study examines the connection between the mean ow shape and the acoustic emission of dual-stream jets. The experimental investigation encompassed jets issuing from coaxial, eccentric, and arcuate nozzles, as well as nozzles with de ectors in the secondary stream. The in ection points of the transverse velocity pro le were used to de ne the generalized secondary core (GSC) of the jet. In co...

The development of three-stream variable-cycle turbofan engines for tactical aircraft provides an opportunity for noise reduction by shaping the exhaust of the secondary and tertiary streams. The paper reviews an experimental study of subscale three-stream jets operating at high specific thrust and issuing from rapid-prototyped nozzles. Exhaust conditions at four set points, with variable terti...

Fluidic oscillators have proven their capabilities and advantages in terms of the generation oscillating jets without moving parts for many years, mainly experimental studies. In this paper, design, development, integration fluidic atomizers into liquid-fuel system dual-fuel low NOX Advanced Can Combustion (ACC) MAN Gas Turbines (MGT) are presented. The two-stage comprises a pressure-swirl nozz...

The article analyzes factors leading to non-uniformity of water distribution in cooling towers. These include imperfections the design pipelines and nozzles system Previous studies conducted on a model tower-type at Rivne Nuclear Power Plant have revealed uneven nozzles. Simulation simultaneity nozzle activation showed that is activated first has highest flow rate. Therefore, achieve acceptable...

Fuel injection nozzles are a key component of electronic engines, and their inner surface roughness affects the performance restricts working efficiency engine. Therefore, polishing technology for nozzle’s is particularly important. At present, abrasive flow commonly used to treat surfaces nozzles. This study investigated magnetic particles in medium. Due external field, affected by field force...

We report experimental results on the production and characterization of asymmetric and composite supersonic gas flows, created by merging independently controllable flows from multiple nozzles. We demonstrate that the spatial profiles are adjustable over a large range of parameters, including gas density, density gradient, and atomic composition. The profiles were precisely characterized using...

An experimental investigation has been carried out to study the cooling of a hot horizontal Stainless Steel surface of 3mm thickness, which has 800±10°C initial temperature. A round water jet of 22 ± 1C temperature was injected over the hot surface through straight tube type nozzles of 2.5-4.8mm diameter and 250mm length. The experiments were performed for the jet exit to target surface spacing...

The worn-out nozzles of field sprayers cause agricultural treatment to be uneven and therefore ineffective. Spray are consumable elements the sprayer that subject inspection in event their excessive wear should replaced with new ones ensure proper execution treatment. aim study is propose, using operational research methods, an expert methodology allowing further operation often expensive nozzl...