Next Article in Journal
Experimental Investigation of Rotor Tip Film Cooling at an Axial Turbine with Swirling Inflow Using Pressure Sensitive Paint
Previous Article in Journal
Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation
Open AccessArticle

Performance Evaluation and Dimensional Analysis of Multistage Helicoaxial Pump for Two-Phase Flow

J. Mike Walker ‘66 Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA
*
Author to whom correspondence should be addressed.
Int. J. Turbomach. Propuls. Power 2019, 4(3), 22; https://doi.org/10.3390/ijtpp4030022
Received: 22 March 2019 / Revised: 17 July 2019 / Accepted: 18 July 2019 / Published: 25 July 2019
A four stage helicoaxial pump was tested under varying operating conditions. A range of inlet pressures, rotational speeds (3000, 3600 rpm), and gas void fractures (GVFs) were considered for two fluid viscosities. The head developed and power input to run the pump were recorded. Head, power input and efficiency decrease as the GVF increases with best efficiency point (BEP) moving towards lower flow rate conditions. Dimensional analysis was conducted to evaluate the applicability of current affinity laws to the two-phase flow performance of the pump under consideration. Dimensionless head coefficient and power coefficients were defined for two-phase flow, considering the homogeneity in the two-phase fluid properties. Deviations in the two-phase affinity coefficients from the common law curve increases with GVF. To bridge this gap, a new correlation is proposed with a revised flow coefficient that allows all the head coefficient data to collapse on a single line with a greater degree of accuracy. View Full-Text
Keywords: multiphase flow; helicoaxial pump; mixed flow pump; experiments; affinity laws multiphase flow; helicoaxial pump; mixed flow pump; experiments; affinity laws
Show Figures

Graphical abstract

MDPI and ACS Style

Patil, A.; Gudigopuram, S.; Ayyildiz, B.; Delgado, A.; Morrison, G. Performance Evaluation and Dimensional Analysis of Multistage Helicoaxial Pump for Two-Phase Flow. Int. J. Turbomach. Propuls. Power 2019, 4, 22.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop