The rectangular tab is well known for its effectiveness in enhancing jet mixing. When the obstruction area caused by the tabs at the nozzle outlets grows, this loss changes. The "AIR TAB" method, which involves injecting a small amount of air into the primary jet at a specific angle of attack, was introduced. The goal of this study is to computationally explore the features of the air tab approach in jet mixing. The purpose of this research is to investigate the impact of centreline velocity decay on jet mixing. Different air-tabs were used to control the primary jet. An axisymmetric, convergent nozzle was employed as the experimental model for simulation in this study. The nozzle’s exit diameter D was 10.02 mm, while the expansion section’s axial length was 56.71 mm. The ability to use the centerline velocity decay as a precise metric of jet mixing is well demonstrated. The core length of the jet controlled by a 1.2 mm air tab is shorter, but the core lengths of the 1.6- and 2.0-mm air tabs are roughly 1.8D and 3.2D, respectively. As a result, an air tab with a smaller diameter performed better than an air tab with a larger diameter when it came to quantifying the features of the jet. In addition, the jet spread and mixing are found to be directly influenced by centerline velocity.
Validation of experimental studies of subsonic jets controlled by air tabs through simulation studies
5TH INTERNATIONAL CONFERENCE ON INNOVATIVE DESIGN, ANALYSIS & DEVELOPMENT PRACTICES IN AEROSPACE & AUTOMOTIVE ENGINEERING: I-DAD’22 ; 2022 ; Chennai, India
AIP Conference Proceedings ; 2766 , 1
07.06.2023
7 pages
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Experimental Study of Subsonic and Sonic Jets Controlled by Air Tabs
Online Contents | 2015
|Experimental studies on rectangular jets with trapezoidal tabs
Online Contents | 2013
|An Experimental Study of Subsonic and Sonic Jets Controlled by Air-Tabs (AIAA 2015-3886)
British Library Conference Proceedings | 2015
|