Nusselt number correlation for synthetic jets

Current Review on Numerical Simulation of Synthetic Jet (SJ) Cooling

“…Researchers frequently utilise the Semi-Implicit Method for Pressure Linked Equations (SIMPLE) technique to model incompressible flow because it works well for unsteady flow with tiny time steps. [12] 1, 4, 100, 200, 400 300,1200 Benayad et al, [14] 10,000 5-20 Liu et al, [18] 100-200 -Li et al, [22] 10,20,50 10,000 -20,000 Zhang et al, [29] 0 [9] Cylindrical Circular Kane et al, [18] Cylindrical Circular Guo et al, [21] Cylindrical Circular Kumar et al, [27] Cylindrical Slot Zhu et al, [33] Cylindrical Slot Qiu et al, [34] Cylindrical Circular Jacob et al, [40] Cylindrical Circular Ahmad and Qayoum [51] Cylindrical Circular…”

“…It can be seen that the cavity with the sharpest transition from orifice to cavity conveys the most momentum at the exit. Lehnen et al, [12] came to the conclusion that the cavity depth had a considerable impact on the centreline velocity of the jet.…”

“…The cycles of the in-flow and cross-flow have many different amplitudes when excitation frequency below 4.0. Lehnen et al, [12] came to the conclusion that the H/d and frequency have the most effects on the SJ ability to dissipate heat. It was discovered by Huang et al, [16] that frequency increased the fin surfaces' average HTC almost linearly.…”

Optimization of Synthetic Jet Position for Heat Transfer Enhancement and Temperature Uniformity of a Heated Wall in Micro-Channels

“…They have shown that the geometric parameters of the actuator, such as the cavity depth and diameter, as well as orifice thickness and diameter, have important influences on the synthetic jet fluidic characteristics. Lehnen et al (2016) investigated the cooling effect of a single synthetic jet impinging directly on a heated surface in a 2-D numerical simulation. They examined several test cases involving changes in the distance between the heated surface and the jet source, jet Reynolds number, pulsing frequency and Prandtl number.…”