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The Numerical Simulation of Nanofluid Flow in Complex Channels with Flexible Wall

Amal A. Harbood*, Hameed K. Hamzah, Hatem H. Obeid

Mechanical Engineering Department, Babylon University, Hillah City, Iraq

* Corresponding Author: Amal A. Harbood. Email: email

Frontiers in Heat and Mass Transfer 2023, 21, 293-315. https://doi.org/10.32604/fhmt.2023.01518

Abstract

The current work seeks to examine numerical heat transfer by using a complicated channel with a trapezoid shape hanging in the channel. This channel demonstrates two-dimensional laminar flow, forced convective flow, and incompressible flow. To explore the behavior of heat transfer in complex channels, several parameters, such as the constant Prandtl number (Pr = 6.9), volume fraction (ϕ) equal to (0.02 to 0.04), Cauchy number (Ca) equal to (10−4 to 10−8), and Reynolds number equal to (60 to 160) were utilized. At the complex channel, different elastic walls are used in different locations, with case A being devoid of an elastic wall, cases B and C each having three elastic walls before and after the trapezoid shape, respectively, and case D having six elastic walls. The geometry of a complicated channel with varying L2/H2 and B/H2 ratios is investigated. The trouble was solved using the FEM with the ALE technique. The results showed that the best case with an elastic wall is reached for B/H2 = 0.8 and L2/H2 = 3. When compared to the channel without a flexible wall in case A, the highest reading for Nusselt was recorded at case C with a percentage of 34.5 percent, followed by case B (31.4 percent) and then case D (21.5 percent). It also has the highest Nusselt number reading at Ca = 10−4 and Re = 160, or about 6.4 when compared to Ca = 10−5 and Ca = 10−8. In case A, △P increases as the Re grows; however, in cases B and C, the △P reduces as the Re increases, but in case D, the △P increases with increasing Re.

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Cite This Article

Harbood, A. A., Hamzah, H. K., Obeid, H. H. (2023). The Numerical Simulation of Nanofluid Flow in Complex Channels with Flexible Wall. Frontiers in Heat and Mass Transfer, 21(1), 293–315.



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