Results 1 to 10 of about 82,459 (305)

Experimental campaign tests on ultra micro gas turbines, fuel supply comparison and optimization [PDF]

open access: yes, 2018
The increasing demand for miniaturized radio-controlled vehicles inspired the following research. The uses of these unmanned miniaturized/micro vehicles range from aero-modeling to drones for urban control and military applications too.
Capata, Roberto, Saracchini, Matteo
core   +2 more sources

Experimental Investigation of the Steady-State Flow Field with Particle Image Velocimetry on a Nozzle Check Valve and Its Dynamic Behaviour on the Pipeline System

open access: yesEnergies, 2022
In the present work, to investigate the hydraulic losses and safe operation of nozzle check valves in industrial piping systems, the static characteristics of the valve and its dynamic behavior in the pipeline system were studied using an experimental ...
Zhengbai Chang, Jin Jiang
doaj   +1 more source

Influence of the axial fan blade angle on the turbulent swirl flow characteristics [PDF]

open access: yesScientific Technical Review, 2014
The paper presents the investigation of the turbulent swirl flow in a pipe behind the axial fan with adjustable nine blades for the angles of 22°, 26° and 30° for the same rotation number (1500 rpm). Velocities were measured with laser Doppler anemometry
Čantrak Đorđe   +3 more
doaj  

Conjugate Heat Transfer Investigation on Swirl-Film Cooling at the Leading Edge of a Gas Turbine Vane

open access: yesEntropy, 2019
Numerical calculation of conjugate heat transfer was carried out to study the effect of combined film and swirl cooling at the leading edge of a gas turbine vane with a cooling chamber inside.
Haifen Du   +4 more
doaj   +1 more source

Hydraulic Actuator System for Rotor Control [PDF]

open access: yes, 1991
In the last ten years, several different types of actuators were developed and fabricated for active control of rotors. A special hydraulic actuator system capable of generating high forces to rotating shafts via conventional bearings is addressed.
Althaus, Josef, Ulbrich, Heinz
core   +1 more source

AI-Based Clustering of Numerical Flow Fields for Accelerating the Optimization of an Axial Turbine

open access: yesEnergies
The growing number of Renewable Energy Sources has increased the demand for innovative and high-performing turbine designs. Due to the increase in computing resources over recent years, numerical optimization using Evolutionary Algorithms (EAs) has ...
Simon Eyselein   +4 more
doaj   +1 more source

Erosion-corrosion behaviour of Zirconia WC-6Co, WC-6Ni and SS316 [PDF]

open access: yes, 2015
The current study investigates a ceramic, two cermets and a metal under solid-liquid impingement with 3.5% NaCl and 150mg/l hydraulic fracturing sand at two extreme angles of impact, 90° and 20°.
Andrews, N.   +3 more
core  

Determination of ball bearing dynamic stiffness [PDF]

open access: yes, 1982
The dynamic radial stiffness characteristics of rolling element bearings are currently determined by analytical methods that have not been experimentally verified.
Beatty, R. F., Rowan, B. F.
core   +1 more source

Machinery Transportation Management: Case Study of 'Plant-trailer' H&S Incidents [PDF]

open access: yes, 2014
Purpose – The purpose of this paper is to investigate causal agents of health and safety (H&S)incidents among “plant-trailers” (as used by construction and utility contractors to transport mechanical machinery); including the relationship(s) of such ...
Edwards, D., Holt, Gary David
core   +1 more source

The influence of evaporation and rainfall on the reservoir water balance equation [PDF]

open access: yesE3S Web of Conferences
Evaporation has a major significance in the water balance of a reservoir. Usually, recorded data for the evaporation on the free surface of a reservoir are not available.
Neagoe Angela   +4 more
doaj   +1 more source

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