An impulse turbine uses drag force on its blades to produce torque rotor. As fluid flows over the blades, pressure changes occur at nozzle, which increases fluid's velocity and reduces static nozzle outlet. The high-momentum then impinges rotor generating frictional resulting in production. To study impact of blade shape number turbine's performance, simulations were conducted. results indicate...

The anchoring and hooking of ships, bedrock friction biological corrosion threaten the safety stability submarine cables. A hydraulic jet cable laying machine manages to bury cables deep into seabed, effectively reduces occurrence external damage This uses a system realize trenching on seabed. However, has complicated operation high power consumption with requirements mother ship, it is not yet...

A full envelope database of a thrust-vectoring axisymmetric nozzle performance for the Pratt & Whitney Pitch/Yaw Balance Beam Nozzle (P/YBBN) is being developed using the F-15 Advanced Control Technology for Integrated Vehicles (ACTIVE) aircraft. At this time, flight research has been completed for steady-state pitch vector angles up to 20° at an altitude of 30,000 ft from low power settings to...

and Swirl Gas Angle on Evaporation of Hafnium Cathode in a Plasma Cutting Arc Nguyen Phi Long1, Y. Tanaka1, Y. Uesugi1, and Y. Yamaguchi2 1Division of Electrical Engineering and Computer Science, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan 2Komatsu Industries Corporation, Japan Abstract: The effects of arc current and swirl gas angle on plasma cutting arc were investigated using a dev...

The present study is concerned with measuring and simulating soot formation and combustion in turbulent liquid fuel spray flames. Soot concentrations inside the combustor are measured by filter paper technique. The simulation is based on the solution of the fully-coupled conservation equations for turbulent flow, chemical species kinetic modeling, fuel droplet evaporation and combustion and...

The quality of continuous-cast steel is greatly influenced by fluid flow in the mold, particularly at the meniscus. Recent examples of computational model applications at the University of Illinois are presented to investigate the formation of several different types of defects related to flow phenomena. The amount of gas injection into the tundish nozzle to avoid air aspiration is quantified b...

Primary atomization and initial spray development are critical in the operation of high-pressure liquid sprays such as ones used internal combustion engines. In current paper, an analysis effect fuel injection pressure on near-nozzle morphology is performed. For this purpose, a high-magnification diffused backlight imaging technique set by means high-speed light-emitting diode long-distance mic...

A conventional, axial‐flow, air‐blast orchard sprayer was used to make applications to the outside row of a semi‐dwarf apple block. Fluorescent tracer was applied at the same rate using either disc‐core nozzle sets or air‐induction nozzles fitted with flat‐fan tips. The experiment included measuring the percent area of spray coverage on leaves after three variations in spray application method....

A planar and instantaneous visualization study of high-speed gas jets and their airblast sprays was performed to qualitatively examine the different atomization performances of different gas nozzles. For the visualization of high-speed gas jets (with no liquid injected), Nd:YAG pulsed laser sheets imaged the clustered vapor molecules in the Rayleigh range (d@j), condensed from the natural humid...