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Experimental study and numerical simulation of three dimensional two phase impinging jet flow using anisotropic turbulence model | ||
Journal of Computational & Applied Research in Mechanical Engineering (JCARME) | ||
مقاله 19، دوره 10، شماره 1 - شماره پیاپی 19، آذر 2020، صفحه 257-269 اصل مقاله (1.46 M) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22061/jcarme.2018.2981.1315 | ||
نویسنده | ||
Hamid Reza Nazif* | ||
Department of Mechanical Engineering, Imam Khomeini International University, Qazvin, Iran | ||
تاریخ دریافت: 19 مهر 1396، تاریخ بازنگری: 01 آبان 1397، تاریخ پذیرش: 05 آبان 1397 | ||
چکیده | ||
Hydrodynamic of a turbulent impinging jet on a flat plate has been studied experimentally and numerically. Experiments were conducted for the Reynolds number range of 72000 to 102000 and a fixed jet-to-plate dimensionless distance of H/d=3.5. Based on the experimental setup, a multi-phase numerical model was simulated to predict flow properties of impinging jets using two turbulent models. Mesh-independency of the numerical model was studied to ensure the preciseness of the results. Numerical and experimental forces on the target plate were compared to examine the performance of turbulent models and wall functions. As a result, the force obtained by the Reynolds stress turbulent model alongside with non-equilibrium wall function was in good agreement with the experiment. The correlation equations were obtained for predicting the water thickness over the target plate and impingement force versus Reynolds number. It was also indicated that the maximum shear stress on the target plate was located at radial dimensionless distance of r/d=0.75. | ||
کلیدواژهها | ||
Impinging jet؛ Anisotropy turbulence؛ Wall function؛ Two-phase flow | ||
مراجع | ||
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