A numerical study of convective heat transfer from an array of parallel blunt plates

✍ Scribed by M. Rahnema; M.A. Yaghoubi; H. Kazeminejad

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 617 KB
• Volume: 18
• Category: Article
• ISSN: 0142-727X
• DOI: 10.1016/s0142-727x(97)00016-7

✦ Synopsis

Two-dimensional (2-D) laminar flow and heat transfer through an array of parallel flat plates with finite thickness was studied numerically. A computer program based on the bounded skew hybrid differencing (BSHD) scheme was used and validated to determine the recirculation length, friction factor, and Nusselt number distribution along the plates. Computations were performed for a wide range of Reynolds number (1.00 < Re D < 400), Prandtl number (0.7 < Pr < 10.0), and blockage ratios (0.083 < Br < 0.40). Results were compared for flow through an array of thin plates. Significant variations in friction factor and Nusselt number were noticed when the plate thicknesses were increased. For practical engineering applications, two correlations were developed: (1) the first correlation predicts the recirculation length in terms of the Reynolds number and blockage ratio; and (2) the second correlation determines the maximum Nusselt number close to the reattachment point in terms of the Reynolds number, Prandtl number, and blockage ratio.