Experimental analysis of the thermal performance on electronic cooling by a combination of cross-flow and an impinging air jet

Three‐dimensional turbulent forced convection around a hot cubic block exposed to a cross‐flow and an impinging jet

“…Figure 9 shows the mean Nusselt number () for different values of Re j and R . We can see that an increase in Re j and a decrease in R ( R = 1) lead to the increase in (); therefore, the heat transfer process is improved; the same results were found from References [13,17]. These results strongly support the data presented in Figure 8.…”

“…Figure 8 represents the variation of h ̅ for each face and overall of the cube at different Re j and R. The most important effects of the cooling process occur at the top of the cube when we decrease the ratio of R to unity with the largest Re j value. With regard to the other faces, it is noted that the values of h ̅ can be improved with the reduction of the ratio R. Figure 9 shows the mean Nusselt number (Nu ̅ ) for different values of Re j and R. We can see that an increase in Re j and a decrease in R (R = 1) lead to the increase in (Nu ̅ ); therefore, the heat transfer process is improved; the same results were found from References [13,17]. These results strongly support the data presented in Figure 8.…”

“…Results show that an increase in the Re ratio improves Nu . Masipa et al 13 experimentally studied the heat transfer of an electronic component positioned in a rectangular channel cooled by the combination of a transverse flow and an impingement jet. They concluded that the cooling of the cross‐jet and incident‐jet configuration is higher than in the case of a channel without impingement jet.…”

Numerical Investigation of Conjugate Natural Convection in a Cavity with a Local Heater by the Lattice Boltzmann Method

“…In this connection, the development of the active and passive cooling systems is required. The analysis of passive cooling systems is not so spread compared to active cooling systems, where many published results can be found [1][2][3][4][5]. To study the efficiency of passive cooling systems, it is proposed to consider the influence of the geometric shape of the heating element and the thermal conductivity of the substrate material where this local energy source is placed.…”

Flow and Heat Transfer Characteristics of Impinging Bubbly Jet

“…Jet impingement is widely used in cooling system about thermal equipment or industrial process that operate high temperature because it has high cooling capability in impingement region [1] and it is a rapid cooling system [2]. For example, it has been used for microelectronic components that are operated on extreme temperature condition [3][4][5], and quenching of steel plates during the manufacturing process that needs to control temperature on materials [6][7][8]. In the field of electronic cooling, air impinging has been contributed to high heat flux device.…”