Presentation is loading. Please wait.

Presentation is loading. Please wait.

Date of download: 11/6/2017 Copyright © ASME. All rights reserved.

Similar presentations


Presentation on theme: "Date of download: 11/6/2017 Copyright © ASME. All rights reserved."— Presentation transcript:

1 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Computational domains of the centrifugal pump

2 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Mesh independent check under designed operating condition

3 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Structure meshes of the impeller

4 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Monitor points arrangement in the impeller

5 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Streamline in 0.5 span-wise plane of the 14th rotating period under 0.6QBEP working condition: (a) t = 0.5379s (0 deg), (b) t =  s (36 deg), (c) t =  s (72 deg), (d) t =  s (108 deg), (e) t =  s (144 deg), (f) t =  s (180 deg), (g) t =  s (216 deg), (h) t =  s (252 deg), (i) t =  s (288 deg), (j) t =  s (324 deg), and (k) t =  s (360 deg)

6 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Vector in span-wise = 0.5 plane of the 14th rotating period under 0.6QBEP working condition: (a) t =  s (0 deg), (b) t =  s (72 deg), (c) t =  s (144 deg), (d) t =  s (216 deg), (e) t =  s (288 deg), and (f) t =  s (360 deg)

7 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Flow vortex structures under 0.4QBEP and 0.6QBEP working conditions (λ2=−300,000 m−2): (a) 0.4QBEP and (b) 0.6QBEP

8 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Change rules of pressure signals with time of monitor point P14 and S14: (a) P14 and (b) S14

9 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Pressure spectra in the impeller under 0.6QBEP working condition: (a) P11, M11, and S11, (b) P12, M12, and S12, (c) P13, M13, and S13, (d) P14, M14, and S14, (e) P15, M15, and S15, and (f) P16, M16, and S16

10 Date of download: 11/6/2017 Copyright © ASME. All rights reserved. From: Unsteady Flow and Pressure Pulsation Characteristics Analysis of Rotating Stall in Centrifugal Pumps Under Off-Design Conditions J. Fluids Eng. 2017;140(2): doi: / Figure Legend: Pressure spectra of monitor points P15 and S15 under 0.4QBEP and 0.6QBEP working conditions: (a) P15 and (b) S15


Download ppt "Date of download: 11/6/2017 Copyright © ASME. All rights reserved."

Similar presentations


Ads by Google