Experimental heat transfer and bulk air temperature measurements for a multipass internal cooling model with ribs and bleed / Douglas Thurman, Philip Poinsatte.

Format:

Book

Government document

Author/Creator:

Thurman, Douglas R., author.

Poinsatte, Philip, author.

Contributor:

NASA Glenn Research Center, issuing body.

U.S. Army Research Laboratory

Series:

NASA technical memorandum ; 2000-209772.

NASA/TM ; 2000-209772

Language:

English

Genre:

Online resources.

Physical Description:

1 online resource (13 pages) : illustrations

Place of Publication:

Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center U.S. Army Research Laboratory, January 2000.

Summary:

An experimental study was made to obtain heat transfer and air temperature data for a simple 3-leg serpentine test section that simulates a turbine blade internal cooling passage with trip strips and bleed holes. The objectives were to investigate the interaction of ribs and various bleed conditions on internal cooling and to gain a better understanding of bulk air temperature in an internal passage. Steady state heat transfer measurements were obtained using a transient technique with thermochromic liquid crystals. Trip strips were attached to one wall of the test section and were located either between or near the bleed holes. The bleed holes, used for film cooling, were metered to simulate the effect of external pressure on the turbine blade. Heat transfer enhancement was found to be greater for ribs near bleed holes compared to ribs between holes, and both configurations were affected slightly by bleed rates upstream. Air temperature measurements were taken at discreet locations along one leg of the model. Average bulk air temperatures were found to remain fairly constant along one leg of the model.

Notes:

"January 2000."

"Prepared for the 45th ASME International Gas Turbine Institute sponsored by the American Society of Mechanical Engineers, Munich, Germany, May 8-11, 2000."

"Performing organization: NASA Glenn Research Center and U.S. Army Research Laboratory"--Report documentation page

Includes bibliographical references (pages 4-5).

Online resource; title from PDF title page (NASA, viewed November 1, 2017).

"ARL-MR-471."

Other Format:

Print version: Thurman, Douglas. Experimental heat transfer and bulk air temperature measurements for a multipass internal cooling model with ribs and bleed

Microfiche version: Thurman, Douglas R. Experimental heat transfer and bulk air temperature measurements for a multipass internal cooling model with ribs and bleed

OCLC:

227925158