On the Preliminary Design and Performance Prediction of Centrifugal Turbopumps, Part 2

L d' Agostino, D. Valentini, A Pasini, L. Torre, G. Pace, Angelo Cervone

Research output: Chapter in Book/Conference proceedings/Edited volumeChapterScientificpeer-review

1 Citation (Scopus)

Abstract


The ideal flow model for the preliminary design and performance prediction of radial turbopumps presented in the companion paper of the present volume (d’Agostino et al. 2017) is here interfaced with the calculation of the boundary layers inside the blade channels and other major forms of flow losses, with the aim of developing an effective tool for rapid parametric optimization of the machine performance and geometry under appropriate design constraints, such as assigned values of the specific speed, flow coefficient, and blade solidity. A mixed-flow turbopump, with a six-bladed impeller, a vaneless diffuser, a single-spiral volute and nondimensional performance characteristics similar to those typically used in liquid propellant rocket engine feed systems, has been designed, parametrically optimized and manufactured in accordance with the indications of the present model. The pumping and suction performance of the machine has been determined in a series of tests in the cavitating pump rotordynamic test facility (CPRTF). Under fully wetted flow conditions the measured pumping characteristics of the machine (hydraulic head and efficiency as functions of the flow coefficient) proved to be in excellent agreement with the model predictions, thus successfully confirming the validity of the proposed model as an effective tool for rapid and efficient design of high-performance centrifugal turbopumps.

The present work has been supported by the European Space Agency under Contract No. 40001025856/10/NL/SFe. The authors would like to express their gratitude to Dr. Giorgio Saccoccia of ESA-ESTEC for his constant and friendly encouragement.
Original languageEnglish
Title of host publicationCavitation Instabilities and Rotordynamic Effects in Turbopumps and Hydroturbines
Subtitle of host publicationTurbopump and Inducer Cavitation, Experiments and Design
EditorsL. d'Agostino, M. Vittoria Salvetti
PublisherSpringer
Pages157-178
Volume575
ISBN (Electronic)978-3-319-49719-8
ISBN (Print)978-3-319-49717-4
DOIs
Publication statusPublished - 2017

Publication series

NameCISM International Centre for Mechanical Sciences
PublisherSpringer
Volume575
ISSN (Print)0254-1971
ISSN (Electronic)2309-3706

Fingerprint Dive into the research topics of 'On the Preliminary Design and Performance Prediction of Centrifugal Turbopumps, Part 2'. Together they form a unique fingerprint.

  • Cite this

    d' Agostino, L., Valentini, D., Pasini, A., Torre, L., Pace, G., & Cervone, A. (2017). On the Preliminary Design and Performance Prediction of Centrifugal Turbopumps, Part 2. In L. d'Agostino, & M. Vittoria Salvetti (Eds.), Cavitation Instabilities and Rotordynamic Effects in Turbopumps and Hydroturbines: Turbopump and Inducer Cavitation, Experiments and Design (Vol. 575, pp. 157-178). (CISM International Centre for Mechanical Sciences; Vol. 575). Springer. https://doi.org/10.1007/978-3-319-49719-8_7