ANALYSIS ON COMPRESSIBLE FLOW WITHIN A SWIRL INJECTOR
Yong Kweon Suh, Kang Sangmo, 허형석
Abstract
Yong Kweon Suh, Kang Sangmo, 허형석
Abstract
In the present, The theoretical and numerical results of gas flow characteristics inside a swirl injector are presented. For this purpose a one-dimensional (theoretical) model and 2D/3D CFD models are proposed for use in the design of the injector. It was found that contradictory to the classical theory about the compressible flow, the swirl has a significant effect on the mass flow rate and the choking conditions. It was found that the one-dimensional model provides reasonably accurate results compared with the 2D/3D numerical results, and thus can be used at the initial stage of the swirl-injector design process.
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In the present, The theoretical and numerical results of gas flow characteristics inside a swirl injector are presented. For this purpose a one-dimensional (theoretical) model and 2D/3D CFD models are proposed for use in the design of the injector. It was found that contradictory to the classical theory about the compressible flow, the swirl has a significant effect on the mass flow rate and the choking conditions. It was found that the one-dimensional model provides reasonably accurate results compared with the 2D/3D numerical results, and thus can be used at the initial stage of the swirl-injector design process.
Key concepts: Injector, Mechanics, Compressibility, Flow (mathematics), Compressible flow, Mass flow rate, Computational fluid dynamics, Mass flow