Thermo- and fluid dynamics characterization of spray cooling with pulsed sprays

Evaluation of effervescent atomizer internal design on the spray unsteadiness using a phase/Doppler particle analyzer

“…Recently, unsteady analysis of sprays is a hot topic in the spray area and a study of the spray unsteadiness is finding its wide applications in engineering [1][2][3][4][5][6][7][8][9]. First, an unsteady spray has a negative influence in combustion application.…”

Heat transfer at multiple-intermittent impacts of a hollow cone spray

“…Dissimilar technological applications include the fuel injection systems of internal combustion engines, where fuel-air mixing depends on the heat transferred at the impact of the fuel spray onto interposed surfaces, e.g., Alkidas [20], Shayler et al [21,22]. Recent research regarding the effects of multiple droplet interactions induced by successive injections for acceleration enrichment, e.g., [23,24], showed that the cooling curves vary within the area of impact and are shifted by variations of the frequency and duration of injection; the local critical heat flux is reported to be independent of the duration of injection and to vary linearly with the frequency, e.g., [24]. Although the authors were concerned with the resulting effects on fuel-air mixing, the analysis further indicate that injection conditions can be properly used to devise a fast response system to control surface temperature.…”

Active performance enhancement of spray cooling

“…Namely, the study by Panao and Moreira (2005) who investigated spray impingement of pulsed sprays on heated surfaces for conditions that are representative of IC engines. They found that manipulating the nature of droplet impingement on the heated surface, accomplished by pulsating the sprays, can enhance heat transfer.…”