Effect of inlet leakage flow on the instability in a radial vaneless diffuser

• Published in: Physics of fluids (1994) Vol. 35; no. 1
• Main Authors: Fan, M., Dazin, A., Bois, G., Romanò, F.
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 01.01.2023
• Subjects: Engineering Sciences; Fast Fourier transformations; Flow stability; Flow velocity; Fluid dynamics; Fluid flow; Fluids mechanics; Impellers; Internal flow; Mechanics; Propagation velocity; Vaneless diffusers; Wavelet analysis; Condensed Matter Physics; Flow instabilities; Computer simulation; Fluid dynamics; Fluid Flow and Transfer Processes; Mechanics of Materials; Signal processing; Computational Mechanics; Mechanical Engineering; Linear stability analysis

The internal flow structures in a vaneless diffuser of a radial pump are experimentally and numerically investigated. Numerical simulations are used for investigating the prominent features of the fluid flow in the vaneless diffuser upon a change of the flow rate and of the impeller-to-diffuser radi...