Detail publikace
Rotational Flow in Centrifugal Pump Meridian Using Curvilinear Coordinates
POCHYLÝ, F. STEJSKAL, J.
Anglický název
Rotational Flow in Centrifugal Pump Meridian Using Curvilinear Coordinates
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
A new model for calculation of the velocity field in a pump meridian is presented in this article. It is a parameterised rotational flow model providing the pump designer with an option to simulate various flow conditions at the blade leading edge using a single parameter, which leads to different blade designs. Despite being rotational, this flow model does not allow for creation of helical swirl structures, a feature that is usually sought to be suppressed in a pump impeller. A condition for a flow pattern suitable for a pump hydraulic design is derived using curvilinear coordinates. The variation of the meridional velocity for different choices of the parameter is demonstrated and the meridional flow field is compared against the turbulent flow. The resulting velocity field is easy to obtain and provides a unified approach to determine the distribution of the blade inlet angles along the leading edge for a range of design requirements.
Anglický abstrakt
A new model for calculation of the velocity field in a pump meridian is presented in this article. It is a parameterised rotational flow model providing the pump designer with an option to simulate various flow conditions at the blade leading edge using a single parameter, which leads to different blade designs. Despite being rotational, this flow model does not allow for creation of helical swirl structures, a feature that is usually sought to be suppressed in a pump impeller. A condition for a flow pattern suitable for a pump hydraulic design is derived using curvilinear coordinates. The variation of the meridional velocity for different choices of the parameter is demonstrated and the meridional flow field is compared against the turbulent flow. The resulting velocity field is easy to obtain and provides a unified approach to determine the distribution of the blade inlet angles along the leading edge for a range of design requirements.
Klíčová slova anglicky
Centrifugal pumps, Rotational flow, Flow (Dynamics), Pumps, Blades, Design, Pump impellers, Turbulence
Vydáno
22.04.2016
Nakladatel
Asme J. Fluids Eng.
ISSN
0098-2202
Ročník
138
Číslo
8
Strany od–do
1765–1770
Počet stran
6
BIBTEX
@article{BUT122165,
author="František {Pochylý} and Jiří {Stejskal},
title="Rotational Flow in Centrifugal Pump Meridian Using Curvilinear Coordinates",
year="2016",
volume="138",
number="8",
month="April",
pages="1765--1770",
publisher="Asme J. Fluids Eng.",
issn="0098-2202"
}