Forced Convection Flow of Nanofluids Past Power Law Stretching Horizontal Plates

• 作者: Ahmed Mostafa Abdelhady Fekry Mohamed Hady Fouad Sayed Ibrahim Hassan Mohammed Hassan El-Hawary
• 来源期刊: 应用数学(英文)
• 学科: 物理学
• 关键词: FORCED CONVECTION NANOFLUID Nonsimilar Solution Heat Transfer Component
• 年，卷（期）: 2012,（2）
• 页码范围: 121-126
• 页数: 6页
• 分类号: O35

摘要

In the present work, we studied a nonsimilar solution of steady forced convection boundary layer flow and heat transfer of a nanofluid past a stretching horizontal plate. One-phase model has been used for this study. The nonsimilarity equations are solved numerically. We considered a nanofluid consists of AL2O3 as a nanoparticles and water as a base fluid. The volume fraction of nanoparticles is considered in the range 0 ≤ ? ≤ 0.2. with prandtl number pr = 6.2 for the water working as a regular fluid. The parameters which governing the solution are volume fraction of nanoparticles , stretching plate parameter ξ and power law index N. We investigated the effect of these parameters on the skin friction coefficient, Nusselt number, velocity and temperature profiles. We found that heat transfer rate and skin fraction increased when ? increased. On the other hand, we concluded that the increase in ξ and N made heat transfer rate increases and skin fraction decreases.