REVIEW OF INVESTIGATION INTO INTERNAL
FLOW OF TURBOMACHINERY

CHEN Haisheng TAN Chunqing

(Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080)

Abstract: The inland and overseas advance and current status of the investigation into internal flow of turbomachinery are reviewed in terms of theoretical analysis, experiments and numerical simulation respectively. The classification, definition and investigation status of internal flow losses of turbomachinery are outlined at first. The theoretical development of internal flow of turbomachinery is then summarized in terms of separation theory, vortex dynamics and flow pattern. The advance of experimental investigations of turbomachinery is reviewed in terms of linear cascade, annular cascade, unsteady experiment and measurement techniques. The methodology, content and achievement of numerical simulation are summarized in terms of govern equation, numerical technique and grid creation. The approaches to improve the aerodynamic performance of turbo-machinery are reviewed and the perspective of this research field is conducted finally. The results show that the investigation into the internal flow of turbomachinery has achieved great improvement and many achievements have been implemented in the de-sign, and more in-deep study is still needed in this field.

Key words: Turbomachinery Internal flow Review

CLC No: V231.3

国家自然科学基金(10577019)和中科院百人计划、中科院优秀博士 论文科研启动基金资助项目. Received 20060210, received in revised form 20060803