Design and Experimental and Numerical Verifications of the Recirculating Blower for Long-Term Tests of Turbine Flowmeters

Abstract

A design of the centrifugal recirculation blower as well as results of its experimental and numerical investigations are presented in this paper. The blower was designed to work in the unique test stand which is used for long-term tests of turbine flowmeters. A 1D method was used to design this blower, then experimental and numerical studies were conducted in order to verify the 1D method. A comparison of the blower pressure increase obtained from the experiment and the computations is presented. Velocity and pressure distributions from the numerical simulations in selected sections are also shown and discussed. Additional numerical studies of a shrouded rotor and a rotor with a lower tip clearance were conducted and are presented in the paper as well.

Simulation of air jets for controlling stall in a centrifugal fan

“…Kryłłowicz et al. 8 presented a design for a centrifugal fan, and their numerical simulation results were in very good agreement with the experimental data across a wide range of mass flow rates.…”