Abstract
The study of the migration characteristics of turbulent jets has become relevant as they are used in a variety of engineering devices and are encountered in combustion, chemical processes, and processes involving cooling, mixing, and drying. In several applications, especially in the case of hot streaks in gas turbines, the knowledge of mixing phenomena becomes crucial from a design perspective. The purpose of this study is to look into the characteristics of a round hot jet in a parallel air flow. A jet of hot air injected through a nozzle into a flow of cold air has been considered. Numerical simulations were carried out with different hot jet temperatures and two different Reynold’s numbers, thus aiming at understanding the effect of initial conditions on the mixing of the jet. The temperature profiles were studied at different sections downstream of the nozzle. The results are presented in non-dimensional form.
Highlights
The mechanics of turbulent jets is of great interest for researchers because of the abundance of its applications
The purpose of this study is to look into the characteristics of a round hot jet in a parallel air flow
Optimum design of the cooling system requires the knowledge of migration characteristics of the hot jet and of parallel air flow [3]
Summary
The mechanics of turbulent jets is of great interest for researchers because of the abundance of its applications. The study of turbulent jets branches into two— the study of free shear flows and the study of impinging jets. For instance, mixing characteristics of hot jets need to be studied. Optimum design of the cooling system requires the knowledge of migration characteristics of the hot jet and of parallel air flow [3]. The study of free shear jets has received more attention in the past decade, with several experimental studies being made in the field with specific reference to their application in gas turbine engines [9] [10] [11]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
