A four-blade-passage numerical model was developed for a two-stage axial-flow compressor with an inlet guide vane (IGV) the purpose of studying steady and dynamic characteristics approaching its stability limit. The flow-field information indicated that tip-leakage flow decreased more rapidly from blade’s leading edge to trailing edge, decreasing rate. leakage verified be driven via blade load ...

In order to prolong the service life of multistage axial compressors, it is increasingly important study influence blade surface roughness on compressor performance. this paper, a five-stage real aero-engine was selected as research object, and an equivalent gravel model used based measured data. Furthermore, impact performance at design rotational speed studied by full three-dimensional numeri...

The seal cavity leakage flow has a considerable impact on the performance of aeroengine, especially multistage compressor. Thus, quasi-three-dimensional simulation program named CAM is developed basing circumferentially averaged throughflow method. enables rapid diagnosis for degradation compressor caused by labyrinth wear. coupling field between and main at root shrouded stator high-loading th...

Serving as a key component of the core engine, high-load axial compressor is expected to have high performance, which determines several critical parameter levels aero-engine. The unsteady effect on performance induced by interaction among different rotors should not be ignored during design compressor. between R1 (the first rotor row) and R2 second transonic was measured in detail using high-f...

Ammonia is stored as a liquefied raw material it used in the fertilizer and cooling industries. The use of multistage compressors during storage essential, boiling point very low (-33°C) due to typical petroleum derivative. Because pressure-temperature optimization with single-stage compressor does not allow ammonia be under atmospheric conditions. condenser throttling valves systems together m...