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Paper Information

Journal:   JOURNAL OF APPLIED FLUID MECHANICS (JAFM)   2016 , Volume 9 , Number 5; Page(s) 2105 To 2110.
 
Paper: 

AERODYNAMIC AND THERMAL CHARACTERISTICS OF A HOT JET IN PARALLEL FLOW

 
 
Author(s):  SATTA F., TANDA G.*
 
* DIME, UNIVERSITA DEGLI STUDI DI GENOVA, VIA MONTALLEGRO 1, I-16145, GENOVA, ITALY
 
Abstract: 

This paper presents an experimental investigation of the aerodynamic and thermal characteristics of a round jet of hot air, injected through a nozzle into a parallel air flow, simulating a hot streak. Experiments were performed by imposing the same total pressure, established by means of a five-hole probe, for the mainstream and the jet at nozzle exit. Time-averaged temperatures at different points over planes downstream of the nozzle exit section were measured by thermocouple rakes. Experimental data, presented in a non-dimensional form, provide a representation not correlated to individual maximum jet temperature and Reynolds number, in the respective fields of variation. The attenuation of the hot jet strength is reported as a function of the normalized axial coordinate for the various operating conditions considered. Results obtained for the hot jet discharged into a parallel flow are compared with data obtained for the hot jet spreading into stagnant air.

 
Keyword(s): HOT JET, HOT STREAK, TEMPERATURE PROFILE
 
References: 
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