| A turbulent jet issuing transversely into a uniform cross-flow is an important type of fluid flow and can be found in many engineering applications. It is of both academic and applied value to research its structural features and flow mechanisms. In this paper, the numerical simulation and experimental studies have been performed in order to understand the characteristics of the turbulent jets in cross-flow, and the result is analyzed.The normal K-εturbulence model and the RNGK-εturbulence model are used respectively to simulate the different injection angles turbulent flows, and the results show that the prediction performance of the RNGK-εmodel is better when simulating the turbulent jets in cross-flow. The computational domain consists of two parts, the main stream duct and the jet hole, where grids are generated respectively structured grid and unstructured grid in the body-fitted coordinates. The girds near the wall and the jet hole are got finer.The experimental set up for the turbulent jets in cross-flow is designed, and the hot wire anemometry IFA 300 is used to measure the velocity field and the turbulent kinetic energy, and the computational result matches experimental measurement reasonably well. The experimental result is very important in the analysis of the flow field, check of the turbulence model and validation of the numerical method.The flow fields are simulated in the conditions of positive different injection angles; the velocity fields, and turbulent kinetic energy fields are got in different conditions of M andαthe evolution of flow patterns on the centre planes, and both the transverse and vertical planes are analyzed. It can be concluded that, when the jet is injected at positive angles, the initial section of the jet increases and the region affected by the jet decreases in the vertical direction; moreover, the circumfluence toward the jet exit becomes more obvious, and the separation events in the lee of the jet weaken.
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