Results 21 to 30 of about 34,786 (228)

Challenging low Reynolds - SWT blade aerodynamics

open access: yesMATEC Web of Conferences, 2018
One of the main issues related to the design and development of small wind turbines (SWTs) is the low Reynolds number. Operation in the transitory regime makes the rotor aerodynamic analysis a challenging task.
Kądrowski Damian   +6 more
doaj   +1 more source

Assessment of condensation models for moist air transonic flow prediction [PDF]

open access: yesMATEC Web of Conferences, 2021
The aim of this article is to thoroughly analyse the influence of condensation models on the modelling of condensation phenomena in transonic flow of moist air.
Wiśniewski Piotr   +5 more
doaj   +1 more source

Small wind, big potential: HAWT design case study

open access: yesMATEC Web of Conferences, 2018
In this paper the project of a small wind turbine for urban application has been described. The project of a horizontal small wind turbine presented in this paper was made for the purposes of taking part in ISWTC, but the main target was to develop a ...
Grapow Filip   +7 more
doaj   +1 more source

Experimental Performance Study of a High Speed Oil Lubricated Polymer Thrust Bearing

open access: yesLubricants, 2015
With the demand for turbomachinery to operate at higher speeds, loads, and power, fluid film bearings that support turbomachinery must be capable of operating in these more demanding applications.
Jie Zhou   +3 more
doaj   +1 more source

Experimental Validation of an Analytical Condensation Model for Application in Steam Turbine Design

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2022
This paper presents experimental data on shear-stress-driven liquid water films on a horizontal plate formed by the condensation of superheated steam. The experimental results were obtained in the Experimental Multi-phase Measurement Application (EMMA ...
Florian Felix Lapp   +3 more
doaj   +1 more source

Non-Uniform Time Sampling for Multiple-Frequency Harmonic Balance Computations [PDF]

open access: yes, 2013
A time-domain harmonic balance method for the analysis of almost-periodic (multi-harmonics) flows is presented. This method relies on Fourier analysis to derive an efficient alternative to classical time marching schemes for such flows.
Dufour, Guillaume   +5 more
core   +1 more source

Influence of Disc Tip Geometry on the Aerodynamic Performance and Flow Characteristics of Multichannel Tesla Turbines

open access: yesEnergies, 2019
As a competitive small-scale turbomachinery option, Tesla turbines have wide potential in various fields, such as renewable energy generation systems and small power equipment.
Wenjiao Qi   +5 more
doaj   +1 more source

Unstable Flow Structures Present at Different Rotational Velocities of the Centrifugal Compressor

open access: yesEnergies, 2020
Unstable flow structures cause inevitable energy losses in all power energy systems, including turbomachines. In this study, a set of analyses was conducted with the use of spectral maps on the pressure signals obtained from an industrial centrifugal ...
Grzegorz Liśkiewicz   +6 more
doaj   +1 more source

NUMERICAL STUDIES OF INTERNAL FLOW IN DIFFERENT TYPES OF FILTERS

open access: yesTASK Quarterly, 2020
The quality of ambient air attracts considerable, widespread interest. Over the last decades, air purification has become an integral part of HVAC systems, process engineering, automotive and respiratory protection.
MAGDALENA STANIK   +4 more
doaj   +1 more source

Forces on Centrifugal Pump Impellers [PDF]

open access: yes, 1985
Forces are exerted on a centrifugal pump impeller, due to the asymmetry of the flow caused by the volute of diffuser, and to the motion of the center of the impeller whenever the shaft whirls. Recent work in the measurement of these forces as a function
Acosta, Allan   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy