摘要
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.
