Cascade experiment and analysis on blade profile of modular high temperature gas‐cooler reactor compressor.

Summary: Modular high‐temperature gas‐cooled reactor power station (MHTGR) is the most promising configurations for fourth‐generation nuclear technology. Aiming at the low accuracy of the performance prediction of MHTGR compressor, the paper intends to provide an experimental basis to have deep comprehension about the nexus of loss, passage structure and working conditions, including surface flow visualization, five‐hole probe measurement at the outlet section and surface pressure measurements under different conditions (blade camber angle, incidence angle). The experimentally measured data and images give a deep insight into the influence of blade camber and incidence on the flow structure, loss and blade loading. The vortex system is mainly shaped by the action of the pressure field. When the flow turning angle is large, the effect of the working fluid properties may be inconspicuous on the overall loss of the flow, rather than the tremendous impact on the boundary layer friction loss of attached flow as in the small blade chamber angle passage. For different vortices, the effect of each factor, which may cause losses, is also wax and wane. [ABSTRACT FROM AUTHOR]