Influence of different types of volutes on centrifugal aviation fuel pump
Authors:
Open Access
- 22 March 2021
- journal article
- research article
- Published by SAGE Publications in Advances in Mechanical Engineering
- Vol. 13 (3)
Abstract
High efficiency and low vibration are two hot topics in the field of fluid mechanics. In this paper, different spiral volutes are designed for centrifugal aviation fuel pump based on Velocity Coefficient Method. Physical fields under different operating conditions are simulated by computational fluid dynamics (CFD) software that solved the Navier–Stokes equations for three-dimensional flow (3D-RANS). And theoretical and simulation values of radial and axial forces are analyzed. The unsteady pressure fluctuation based on the steady results at the monitoring point is solved and Fast Fourier Transform (FFT) is used to obtain the influence of different volutes on pressure pulsation. The influence of three volutes on is analyzed and compared with the simulation. The results show that the double volutes improve significantly the large flow efficiency of the aviation fuel pump, 20%–30% higher than that of the single volute. The doubles volute can also optimize the radial force under the off-design condition. The radial force of the single volute fuel pump is 100 N. The radial force of the two types of double volute fuel pump is between 10 and 20 N. The three types of volute have no obvious influence on the axial force. Two types of double volutes provide excellent suppression of fuel pump pulsation spikes over the full frequency range. The peak value of single volute is mainly concentrated in the low frequency area below 2000 Hz. The blade frequency (170 Hz) and frequency multiplication are the main frequencies of the pulsation and the pulsation decreases rapidly in the high frequency area. The research results provide theoretical support for the design of aviation fuel pump with low pressure pulsation.Keywords
Funding Information
- Xihua University (No.: szjj2019-029)
- Science and Technology Department of Sichuan Province (Grant No. 2020YFH0135)
- National Natural Science Foundation of China (No. 52079118)
This publication has 15 references indexed in Scilit:
- Investigation of flow pattern and hydraulic performance of a centrifugal pump impeller through the PIV methodRenewable Energy, 2020
- A Comparative Study on Centrifugal Pump Designs and Two-Phase Flow Characteristic under Inlet Gas Entrainment ConditionsEnergies, 2019
- PIV measurement of internal flow in mini centrifugal pumpIOP Conference Series: Earth and Environmental Science, 2019
- Effect of working conditions and diffuser setting angle on pressure fluctuations within a centrifugal pumpInternational Journal of Heat and Fluid Flow, 2019
- Symmetrical and unsymmetrical tip clearances on cavitation performance and radial force of a mixed flow pump as turbine at pump modeRenewable Energy, 2018
- Analysis of inner flow in low specific speed centrifugal pump based on LESJournal of Mechanical Science and Technology, 2013
- Applicability of eddy viscosity turbulence models in low specific speed centrifugal pumpIOP Conference Series: Earth and Environmental Science, 2012
- Partially-Averaged Navier–Stokes method with modified k–ε model for cavitating flow around a marine propeller in a non-uniform wakeInternational Journal of Heat and Mass Transfer, 2012
- The flow simulation of a low-specific-speed high-speed centrifugal pumpApplied Mathematical Modelling, 2011
- The numerical computation of turbulent flowsComputer Methods in Applied Mechanics and Engineering, 1974