This paper presents the result of design optimization for three-bladed pump inducer using a three-dimensional (3-D) inverse design approach, Computational Fluid Dynamics (CFD) and DoE (Design of Experiments) taking suction performance and cavitation instability into consideration. The parameters to control streamwise blade loading distribution and spanwise work (free vortex or non-free vortex) for inducer were chosen as design optimization variables for the inverse design approach. Cavitating and non-cavitating performances for inducers designed using the design variables arranged in the DoE table were analyzed by steady CFD. Objective functions for non-cavitating operating conditions were the head and efficiency of inducers at a design flow (Qd), 80% Qd and 120% Qd. The volume of the inducer cavity region with a void ratio above 50% was selected as the objective function for inducer suction performance. In order to evaluate cavitation instability by steady CFD, the dispersion of the blade surface pressure distribution on each blade was selected as the evaluation parameter. This dispersion of the blade surface pressure distribution was caused by non-uniformity in the cavitation length that was developed on each inducer blade and increased when the cavitation number was reduced. The effective design parameters on suction performance and cavitation instability were confirmed by sensitivity analysis during the design optimization process. Inducers with specific characteristics (stable, unstable) designed using the effective parameters were evaluated through experiments.
Skip Nav Destination
ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
July 24–29, 2011
Hamamatsu, Japan
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4440-3
PROCEEDINGS PAPER
Design Optimization of Cryogenic Pump Inducer Considering Suction Performance and Cavitation Instability
Hiroyoshi Watanabe,
Hiroyoshi Watanabe
Ebara Corporation Fluid Machinery & Systems Company, Futtu, Chiba, Japan
Search for other works by this author on:
Hiroshi Tsukamoto
Hiroshi Tsukamoto
Kitakyushu National College of Technology, Kitakyushu, Fukuoka, Japan
Search for other works by this author on:
Hiroyoshi Watanabe
Ebara Corporation Fluid Machinery & Systems Company, Futtu, Chiba, Japan
Hiroshi Tsukamoto
Kitakyushu National College of Technology, Kitakyushu, Fukuoka, Japan
Paper No:
AJK2011-05010, pp. 1763-1772; 10 pages
Published Online:
May 25, 2012
Citation
Watanabe, H, & Tsukamoto, H. "Design Optimization of Cryogenic Pump Inducer Considering Suction Performance and Cavitation Instability." Proceedings of the ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D. Hamamatsu, Japan. July 24–29, 2011. pp. 1763-1772. ASME. https://doi.org/10.1115/AJK2011-05010
Download citation file:
41
Views
Related Proceedings Papers
Related Articles
NPSHr Optimization of Axial-Flow Pumps
J. Fluids Eng (July,2008)
Parametric Design of a Waterjet Pump by Means of Inverse Design, CFD Calculations and Experimental Analyses
J. Fluids Eng (March,2010)
Flow Physics and Profiling of Recessed Blade Tips: Impact on Performance and Heat Load
J. Turbomach (April,2008)
Related Chapters
Analysis of the Vortex Dynamics Characteristics in the Tip Region of the Mixed-flow Pump Under Cavitation
Mixed-flow Pumps: Modeling, Simulation, and Measurements
Dynamic Behavior of Pumping Systems
Pipeline Pumping and Compression Systems: A Practical Approach
Introduction
Mixed-flow Pumps: Modeling, Simulation, and Measurements