EFFECT OF MAINSTREAM ACCELERATION ON ADIABATIC WALL TEMPERATURE AND HEAT TRANSFER DOWNSTREAM OF GAS INJECTION.

M. Y. Jabbari, R. J. Goldstein

Research output: Contribution to conferencePaper

5 Citations (Scopus)

Abstract

The local film cooling effectiveness and the heat transfer downstream of air injection through a single hole and two staggered rows of holes are measured. The mainstream velocity increases by factors of either 1. 8 or 3. 0 over the length of the test plate, which extends fifty hole diameters downstream of injection. The mainstream acceleration increases the effectiveness downstream of the single hole while it decreases the effectiveness from the staggered rows by about 15%. The heat transfer coefficient normalized by the heat transfer coefficient without injection is not affected by acceleration at low blowing rates. At higher blowing rates a slight drop in normalized heat transfer coefficient is observed.

Original languageEnglish (US)
StatePublished - Jan 1 2017
EventInt Heat Transfer Conf, 6th - Toronto, Ont, Can
Duration: Aug 7 1978Aug 11 1978

Other

OtherInt Heat Transfer Conf, 6th
CityToronto, Ont, Can
Period8/7/788/11/78

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Heat transfer coefficients
Blow molding
Heat transfer
Temperature
Cooling
Air

Cite this

Jabbari, M. Y., & Goldstein, R. J. (2017). EFFECT OF MAINSTREAM ACCELERATION ON ADIABATIC WALL TEMPERATURE AND HEAT TRANSFER DOWNSTREAM OF GAS INJECTION.. Paper presented at Int Heat Transfer Conf, 6th, Toronto, Ont, Can, .

EFFECT OF MAINSTREAM ACCELERATION ON ADIABATIC WALL TEMPERATURE AND HEAT TRANSFER DOWNSTREAM OF GAS INJECTION. / Jabbari, M. Y.; Goldstein, R. J.

2017. Paper presented at Int Heat Transfer Conf, 6th, Toronto, Ont, Can, .

Research output: Contribution to conferencePaper

Jabbari, MY & Goldstein, RJ 2017, 'EFFECT OF MAINSTREAM ACCELERATION ON ADIABATIC WALL TEMPERATURE AND HEAT TRANSFER DOWNSTREAM OF GAS INJECTION.' Paper presented at Int Heat Transfer Conf, 6th, Toronto, Ont, Can, 8/7/78 - 8/11/78, .
Jabbari MY, Goldstein RJ. EFFECT OF MAINSTREAM ACCELERATION ON ADIABATIC WALL TEMPERATURE AND HEAT TRANSFER DOWNSTREAM OF GAS INJECTION.. 2017. Paper presented at Int Heat Transfer Conf, 6th, Toronto, Ont, Can, .
Jabbari, M. Y. ; Goldstein, R. J. / EFFECT OF MAINSTREAM ACCELERATION ON ADIABATIC WALL TEMPERATURE AND HEAT TRANSFER DOWNSTREAM OF GAS INJECTION. Paper presented at Int Heat Transfer Conf, 6th, Toronto, Ont, Can, .
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abstract = "The local film cooling effectiveness and the heat transfer downstream of air injection through a single hole and two staggered rows of holes are measured. The mainstream velocity increases by factors of either 1. 8 or 3. 0 over the length of the test plate, which extends fifty hole diameters downstream of injection. The mainstream acceleration increases the effectiveness downstream of the single hole while it decreases the effectiveness from the staggered rows by about 15{\%}. The heat transfer coefficient normalized by the heat transfer coefficient without injection is not affected by acceleration at low blowing rates. At higher blowing rates a slight drop in normalized heat transfer coefficient is observed.",
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