The Influence of Load Distribution on Secondary Flow in Straight Turbine Cascades

Autor:	L. Fottner, A. P. Weiss
Rok vydání:	1995
Předmět:	Flow visualization Physics Turbine blade Plane (geometry) Mechanical Engineering Flow (psychology) Mechanics Secondary flow Turbine law.invention law Control theory Cascade Turbomachinery
Zdroj:	Journal of Turbomachinery. 117:133-141
ISSN:	1528-8900 0889-504X
DOI:	10.1115/1.2835631
Popis:	This paper describes an experimental study of the three-dimensional flow within two highly loaded turbine cascades subjected to the same overall load but different load distributions. Data were obtained using pneumatic probes, pressure tappings, and a surface flow visualization technique. It is found that the general nature of the flow is similar for both cascades. In the exit plane the cascades show different spanwise loss distributions. However, the averaged secondary loss is quite similar in this plane. Examining the measurements farther downstream and also by comparing the calculated mixed-out values, it becomes clear that a higher magnitude of secondary loss is generated by the front-loaded cascade.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8bc9a9b09fa3ba61e74073295fbac012 https://doi.org/10.1115/1.2835631 Zobrazit plný text záznamu