Accession Number:

AD0269815

Title:

AERODYNAMIC CRITERIA FOR OPTIMUM DESIGN OF MIXED-FLOW IMPELLERS-FINAL EVALUATION

Descriptive Note:

Corporate Author:

GARRETT CORP PHOENIX ARIZ AIRESEARCH MFG DIV

Personal Author(s):

Report Date:

1961-09-01

Pagination or Media Count:

1.0

Abstract:

Effort was made to establish aerodynamic design criteria for high-pressure-ratio, transonic, mixed-flow impellers. Results are given on two impellers. For each impeller xtensive amounts of inlet and exit survey data, as well as shroud and over-all data, are presented and discussed. The boundary layer development was studied along the blade surface for several impellers at several speeds. Results are compared with over-all impeller measured performance. The study provides quantitative means of evaluating blade loadings and provides some insight as to the distribution of the losses and the magnitude of the viscous clogging allowance. An evaluation is made of d sign procedure in the light of test results. A comparison and correlation of the results for all impellers is made so as to formulate design criteria. A rational approach is developed, aimed at minimizing centrifugal impeller and diffuser losses. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE