Experiments measuring the single-cycle impulse from detonation tubes with nozzles were conducted by hanging the tubes in a ballistic pendulum arrangement within a large tank. The detonation-tube nozzle and surrounding tank were initiallyfilledwith air between 1.4 and 100kPa in pressure simulating high-altitude conditions.A stoichiometric ethylene–oxygen mixture at an initial pressure of 80 kPa ...

Aircraft noise is a complex topic which is projected to increase with the increasing number of aircraft and size of the engines. Turbine-powered aircraft produce sounds that are considered pollutants at certain decibel levels. Turbofan engines are inherently quieter than turbojet engines for a given level of thrust. The purpose of this research is to determine if current turbofan noise reductio...

A methodology for the regulation of boom sprayers working in circular trajectories has been developed. In this type of trajectory, the areas of the plots of land treated by the outer nozzles of the boom are treated at reduced rates, and those treated by the inner nozzles are treated in excess. The goal of this study was to establish the methodology to determine the flow of the individual nozzle...

Spraying is the most widely used means of pesticide application for pest control in agriculture and forestry. The atomization characteristics nozzles are directly related to spray drift, rebound, deposition. Previous research studies have mainly focused on change pattern characteristics. Mathematical descriptions flat fan rare, theories also insufficient. Atomization include droplet size veloci...

The presence of jet-marks, or jet-streaks, on the surface of hydroentangled nonwoven fabrics, is usually regarded as an undesirable outcome of the hydroentangling process. Jet-streaks degrade aesthetic features and physical properties of the resulting fabrics. Jet-streaks are associated with low tear strength along the machine direction and nonuniform appearance. Reducing or eliminating the occ...

The article is devoted to the research of effect prismatic nozzle design on large phase contact surface while steam used spray mistella in inner cavity final distiller. appearance dispersed spraying liquid a four-nozzle sprayer was analyzed experimental equipment assembled for study heat and matter exchange processes using nozzles. For production conditions, effectiveness use vertical nozzles h...