کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
656664 1458047 2016 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical investigation on the performance of low-Reynolds number k-∊k-∊ model for a buoyancy-opposed wall jet flow
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Numerical investigation on the performance of low-Reynolds number k-∊k-∊ model for a buoyancy-opposed wall jet flow
چکیده انگلیسی


• The negatively buoyant wall jet flow in a rectangular channel subjected to a slowly moving counter-current stream has been declared as an application challenge.
• Computations have been carried out using low-Reynolds number (LRN) turbulence model.
• The viscous sublayer region is resolved using the wall integration approach.
• Using the LRN model, a very good agreement with the experimental results has been obtained for this complex flow situation.

The negatively buoyant wall jet flow in a rectangular channel subjected to a slowly moving counter-current stream has been declared as an application challenge. Numerical simulation has remained elusive for last one decade since the two moderately successful papers of Addad et al. (2004) and Craft et al. (2004). The present investigation reports the successful reproduction of the experimental results of He et al. (2002) for the non-buoyant as well as the buoyant cases. The computations have been carried out using low-Reynolds number turbulence model proposed by Yang and Shih (YS). The performance assessment of YS model has been done by comparing the computational results with the experimental results of He et al. Based on the comparison, it has been observed that YS model shows a very good agreement with the experimental results for this complex flow situation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 95, April 2016, Pages 636–649
نویسندگان
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