Abstract: A methodology has been derived allowing a fast preliminary assessment of the design of centrifugal compressors specified for high specific swallowing capacity. The method is based on onedimensional (1D) design point values ...

Abstract: A novel approach to calculate the performance map of a centrifugal compressor stage is presented. At the design point four nondimensional parameters (the flow coefficient د†, the work coefficient خ», the tipspeed Mach ...

Abstract: Test data on several small turbochargers with different levels of heat transfer from the turbine to the compressor have been obtained through cooling of the turbocharger center housing and by testing in hot and cold test ...

Abstract: The matching of a vaned diffuser with a centrifugal impeller is examined with a onedimensional (1D) analysis combined with extensive experimental data. A matching equation is derived to define the required throat area of ...

Abstract: A diagram is described which demonstrates important aspects of the exit velocity triangle of a radial compressor impeller with no inlet swirl. Although this diagram is based on work dating back to 1941, it is not widely ...

Abstract: The impact of the hub and shroud leakage flows on the compressor efficiency has been investigated for four compressor stages with flow coefficients of 0.017, 0.0265, 0.063, and 0.118 belonging to a family of centrifugal ...

Abstract: This paper describes the design of a transonic mixed flow compressor stage for an extreme duty, with an extremely high flow coefficient (د†) of 0.25 and a high isentropic pressure rise coefficient (دˆ) of 0.56. The impeller ...

Abstract: The effects of blade deformation under running conditions on the performance of a highly loaded transonic mixed flow impeller were investigated. Two impellers were manufactured, one using the “runningâ€‌ blade profiles ...

Abstract: The detailed design of the inducer of a high pressure ratio transonic radial compressor impeller with a design inlet tip relative Mach number of 1.4 is considered. Numerical analysis has been used to compare a datum impeller ...

Abstract: A variable geometry concept for advanced turbocharger (TC) systems is presented. The variability of the device is based on outlet area changes as opposed to the more common systems that are based on inlet turbine geometry ...