Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump

1862 Ogledov
1739 Prenosov
Izvoz citacije: ABNT
ZHANG, Ning ;YANG, Minguan ;GAO, Bo ;LI, Zhong ;NI, Dan .
Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 62, n.1, p. 21-31, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/sl/article/investigation-of-rotor-stator-interaction-and-flow-unsteadiness-in-a-low-specific-speed-centrifugal-pump/>. Date accessed: 17 sep. 2021. 
doi:http://dx.doi.org/10.5545/sv-jme.2015.2859.
Zhang, N., Yang, M., Gao, B., Li, Z., & Ni, D.
(2016).
Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump.
Strojniški vestnik - Journal of Mechanical Engineering, 62(1), 21-31.
doi:http://dx.doi.org/10.5545/sv-jme.2015.2859
@article{sv-jmesv-jme.2015.2859,
	author = {Ning  Zhang and Minguan  Yang and Bo  Gao and Zhong  Li and Dan  Ni},
	title = {Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {62},
	number = {1},
	year = {2016},
	keywords = {centrifugal pump; large eddy simulation; flow unsteadiness; rotor-stator interaction; pressure pulsation; vortical structure},
	abstract = {Instantaneous flow dynamics induced by rotor-stator interaction are detrimental to the stable operation of centrifugal pumps. In this study, unsteady rotor-stator interaction and flow structures within a low specific-speed centrifugal pump are analysed using the Large Eddy Simulation (LES) method. For that purpose, pressure pulsation and the evolution process of a vortical structure are combined to investigate rotor-stator interaction in order to clarify the inherent correlation between pressure amplitude and vorticity distribution. The results show that distinct peaks at blade passing frequency (fBPF) are closely associated with the positions of the monitoring point due to rotor-stator interaction. An unsteady vortical structure at the near tongue region is related to the relative position of the impeller with respect to the tongue, and the upstream effect of the volute tongue significantly affects the vorticity distribution on the blade pressure side. Rotor-stator interaction is dominated by vortex shedding in the wake of the blade trailing edge and their impingement on the volute tongue with subsequent cutting and distortion. Moreover, the high-pressure amplitude is generated with the corresponding high vorticity magnitude observed as well. Therefore, it is confirmed that pressure amplitude is significantly associated with the corresponding vorticity magnitude.},
	issn = {0039-2480},	pages = {21-31},	doi = {10.5545/sv-jme.2015.2859},
	url = {https://www.sv-jme.eu/sl/article/investigation-of-rotor-stator-interaction-and-flow-unsteadiness-in-a-low-specific-speed-centrifugal-pump/}
}
Zhang, N.,Yang, M.,Gao, B.,Li, Z.,Ni, D.
2016 June 62. Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 62:1
%A Zhang, Ning 
%A Yang, Minguan 
%A Gao, Bo 
%A Li, Zhong 
%A Ni, Dan 
%D 2016
%T Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump
%B 2016
%9 centrifugal pump; large eddy simulation; flow unsteadiness; rotor-stator interaction; pressure pulsation; vortical structure
%! Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump
%K centrifugal pump; large eddy simulation; flow unsteadiness; rotor-stator interaction; pressure pulsation; vortical structure
%X Instantaneous flow dynamics induced by rotor-stator interaction are detrimental to the stable operation of centrifugal pumps. In this study, unsteady rotor-stator interaction and flow structures within a low specific-speed centrifugal pump are analysed using the Large Eddy Simulation (LES) method. For that purpose, pressure pulsation and the evolution process of a vortical structure are combined to investigate rotor-stator interaction in order to clarify the inherent correlation between pressure amplitude and vorticity distribution. The results show that distinct peaks at blade passing frequency (fBPF) are closely associated with the positions of the monitoring point due to rotor-stator interaction. An unsteady vortical structure at the near tongue region is related to the relative position of the impeller with respect to the tongue, and the upstream effect of the volute tongue significantly affects the vorticity distribution on the blade pressure side. Rotor-stator interaction is dominated by vortex shedding in the wake of the blade trailing edge and their impingement on the volute tongue with subsequent cutting and distortion. Moreover, the high-pressure amplitude is generated with the corresponding high vorticity magnitude observed as well. Therefore, it is confirmed that pressure amplitude is significantly associated with the corresponding vorticity magnitude.
%U https://www.sv-jme.eu/sl/article/investigation-of-rotor-stator-interaction-and-flow-unsteadiness-in-a-low-specific-speed-centrifugal-pump/
%0 Journal Article
%R 10.5545/sv-jme.2015.2859
%& 21
%P 11
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 62
%N 1
%@ 0039-2480
%8 2018-06-27
%7 2018-06-27
Zhang, Ning, Minguan  Yang, Bo  Gao, Zhong  Li, & Dan  Ni.
"Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump." Strojniški vestnik - Journal of Mechanical Engineering [Online], 62.1 (2016): 21-31. Web.  17 Sep. 2021
TY  - JOUR
AU  - Zhang, Ning 
AU  - Yang, Minguan 
AU  - Gao, Bo 
AU  - Li, Zhong 
AU  - Ni, Dan 
PY  - 2016
TI  - Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2015.2859
KW  - centrifugal pump; large eddy simulation; flow unsteadiness; rotor-stator interaction; pressure pulsation; vortical structure
N2  - Instantaneous flow dynamics induced by rotor-stator interaction are detrimental to the stable operation of centrifugal pumps. In this study, unsteady rotor-stator interaction and flow structures within a low specific-speed centrifugal pump are analysed using the Large Eddy Simulation (LES) method. For that purpose, pressure pulsation and the evolution process of a vortical structure are combined to investigate rotor-stator interaction in order to clarify the inherent correlation between pressure amplitude and vorticity distribution. The results show that distinct peaks at blade passing frequency (fBPF) are closely associated with the positions of the monitoring point due to rotor-stator interaction. An unsteady vortical structure at the near tongue region is related to the relative position of the impeller with respect to the tongue, and the upstream effect of the volute tongue significantly affects the vorticity distribution on the blade pressure side. Rotor-stator interaction is dominated by vortex shedding in the wake of the blade trailing edge and their impingement on the volute tongue with subsequent cutting and distortion. Moreover, the high-pressure amplitude is generated with the corresponding high vorticity magnitude observed as well. Therefore, it is confirmed that pressure amplitude is significantly associated with the corresponding vorticity magnitude.
UR  - https://www.sv-jme.eu/sl/article/investigation-of-rotor-stator-interaction-and-flow-unsteadiness-in-a-low-specific-speed-centrifugal-pump/
@article{{sv-jme}{sv-jme.2015.2859},
	author = {Zhang, N., Yang, M., Gao, B., Li, Z., Ni, D.},
	title = {Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {62},
	number = {1},
	year = {2016},
	doi = {10.5545/sv-jme.2015.2859},
	url = {https://www.sv-jme.eu/sl/article/investigation-of-rotor-stator-interaction-and-flow-unsteadiness-in-a-low-specific-speed-centrifugal-pump/}
}
TY  - JOUR
AU  - Zhang, Ning 
AU  - Yang, Minguan 
AU  - Gao, Bo 
AU  - Li, Zhong 
AU  - Ni, Dan 
PY  - 2018/06/27
TI  - Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 62, No 1 (2016): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2015.2859
KW  - centrifugal pump, large eddy simulation, flow unsteadiness, rotor-stator interaction, pressure pulsation, vortical structure
N2  - Instantaneous flow dynamics induced by rotor-stator interaction are detrimental to the stable operation of centrifugal pumps. In this study, unsteady rotor-stator interaction and flow structures within a low specific-speed centrifugal pump are analysed using the Large Eddy Simulation (LES) method. For that purpose, pressure pulsation and the evolution process of a vortical structure are combined to investigate rotor-stator interaction in order to clarify the inherent correlation between pressure amplitude and vorticity distribution. The results show that distinct peaks at blade passing frequency (fBPF) are closely associated with the positions of the monitoring point due to rotor-stator interaction. An unsteady vortical structure at the near tongue region is related to the relative position of the impeller with respect to the tongue, and the upstream effect of the volute tongue significantly affects the vorticity distribution on the blade pressure side. Rotor-stator interaction is dominated by vortex shedding in the wake of the blade trailing edge and their impingement on the volute tongue with subsequent cutting and distortion. Moreover, the high-pressure amplitude is generated with the corresponding high vorticity magnitude observed as well. Therefore, it is confirmed that pressure amplitude is significantly associated with the corresponding vorticity magnitude.
UR  - https://www.sv-jme.eu/sl/article/investigation-of-rotor-stator-interaction-and-flow-unsteadiness-in-a-low-specific-speed-centrifugal-pump/
Zhang, Ning, Yang, Minguan, Gao, Bo, Li, Zhong, AND Ni, Dan.
"Investigation of Rotor-Stator Interaction and Flow Unsteadiness in a Low Specific Speed Centrifugal Pump" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 62 Number 1 (27 June 2018)

Avtorji

Inštitucije

  • Jiangsu University, School of Energy and Power Engineering, China 1

Informacije o papirju

Strojniški vestnik - Journal of Mechanical Engineering 62(2016)1, 21-31

https://doi.org/10.5545/sv-jme.2015.2859

Instantaneous flow dynamics induced by rotor-stator interaction are detrimental to the stable operation of centrifugal pumps. In this study, unsteady rotor-stator interaction and flow structures within a low specific-speed centrifugal pump are analysed using the Large Eddy Simulation (LES) method. For that purpose, pressure pulsation and the evolution process of a vortical structure are combined to investigate rotor-stator interaction in order to clarify the inherent correlation between pressure amplitude and vorticity distribution. The results show that distinct peaks at blade passing frequency (fBPF) are closely associated with the positions of the monitoring point due to rotor-stator interaction. An unsteady vortical structure at the near tongue region is related to the relative position of the impeller with respect to the tongue, and the upstream effect of the volute tongue significantly affects the vorticity distribution on the blade pressure side. Rotor-stator interaction is dominated by vortex shedding in the wake of the blade trailing edge and their impingement on the volute tongue with subsequent cutting and distortion. Moreover, the high-pressure amplitude is generated with the corresponding high vorticity magnitude observed as well. Therefore, it is confirmed that pressure amplitude is significantly associated with the corresponding vorticity magnitude.

centrifugal pump; large eddy simulation; flow unsteadiness; rotor-stator interaction; pressure pulsation; vortical structure