热传输研究和优化纳米流体三角腔与五边形屏障的有限元素方法和RSM的热传输研究和优化
Kh Hosseinzadeh1,2, M Roshani2, M A Attar2
1Department of Mechanical Engineering, Sharif University of Technology, Azadi Ave, Tehran, Iran.
Heliyon
|October 9, 2023
概括
这项研究分析了使用纳米流体和MHD的五角形屏障在三角形腔中混合对流传热传输. 使用Taguchi和RSM方法的优化确定了增强热传输的最佳参数.
科学领域:
- 热力工程是热力工程中的一个.
- 流体动力学 流体动力学
- 纳米技术 纳米技术
背景情况:
- 混合对流传热传输 (MCHT) 在工程应用中至关重要.
- 带有障碍的空洞带来了复杂的热传递挑战.
- 磁动力学 (MHD) 影响导电流体中的流体流动和热传递.
研究的目的:
- 在MHD效应下,研究纳米流体在三角腔中与五角形屏障的MCHT.
- 分析理查森数 (Ri),雷诺兹数 (Re),浮力比率 (Br) 和哈特曼数 (Ha) 对传热特性的影响.
- 优化这些参数以获得最大的传热效率.
主要方法:
- 使用加勒金有限元素方法解决的指导方程.
- 对Ri,Re,Br和Ha进行了参数研究.
- 塔古奇方法和响应表面方法 (RSM) 用于优化.
主要成果:
- 分析了流线,同热线,度,速度和努塞尔特数 (Nu).
- 对Ri,Re,Ha和Br的最佳值分别为4.95,30.49,18.35和0.05确定.
- 为了预测最佳的平均努塞尔特数,开发了一个相关性.
结论:
- 该研究在MHD下成功地分析了MCHT在复杂几何中.
- 使用Taguchi和RSM的参数优化产生了重要的见解.
- 导出的相关性为预测最佳传热性能提供了一个工具.
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