Computational Study on Aerodynamic and Thermal Characteristics of a Hot Jet in Parallel Flow

• 作者: Abhilash Suryan Heuy Dong Kim Meribeni L. Jungio Merlin C. Das N. Haritha
• 来源期刊: 流体动力学(英文)
• 学科: 物理学
• 关键词: TURBULENT JET PARALLEL FLOW Reynold’s NUMBER Temperature Profiles
• 年，卷（期）: ltdlxyw_2017,（3）
• 页码范围: 348-358
• 页数: 11页
• 分类号: O3

摘要

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.