In this study, thermo-fluid dynamics of an inverted arrow-shaped rough absorber plate in a turbulent regime ( 3 , 800 ≤ R e ≤ 18 , 000 ) is numerically investigated. The computational results have been obtained using Finite Volume Method (FVM) in ANSYS Fluent 19.0. A constant heat flux of 1 kW / m 2 is applied to the aluminum absorber plate. The impact of Reynolds number ( R e ) ( 3 , 800 ≤ R e ≤ 1 , 8000 ) and relative roughness pitch ( P / e ) ( 7.14 ≤ P / e ≤ 17.86 ) on heat dissipation from the absorber plate has been examined. The roughness height ( e / D h ) has maintained a constant at e / D h = 0.042 throughout the study. For all relative roughness pitches, average Nusselt number ( N u r ¯ ) rises with R e by up to 180.52%. However, at elevated R e the average value of the friction factor ( f r ) ¯ reduces by up to 52.78%. The computational analysis predicts that the maximum N u r ¯ , approximately 5.4 times in contrast to a smooth duct, performed at a P / e = 17.86. Meanwhile, the maximum increase in the f r ¯ , about 3.82 times relative to the smoo
Kumar et al. (Thu,) studied this question.