Impinging jets are used in a wide number of industrial cooling applications due to their high heat and mass transfer abilities. The current research is concerned with the effect of swirl on the heat transfer characteristics of jet impingement cooling. Two inserts were designed order to generate swirling flow. These two designs, “Swirl Insert A” and “Swirl Insert B”, were tested at various Reyno...

BACKGROUND Heat transfer enhancement technology concerns with the aim of developing more efficient systems to satisfy the increasing demands of many applications in the fields of automotive, aerospace, electronic and process industry. A solution for obtaining efficient cooling systems is represented by the use of confined or unconfined impinging jets. Moreover, the possibility of increasing the...

In the heavy-frame advanced turbine systems, steam is used as a coolant for turbine blade cooling. The concept of injecting mist into the impinging jets of steam was experimentally proved as an effective way of significantly enhancing the cooling effectiveness in the laboratory under low pressure and temperature conditions. However, whether mist/steam cooling is applicable under actual gas turb...

Confined plunging jets are investigated as potential outfalls for the discharge of desalination brine. Compared to offshore submerged that rely on momentum induce mixing, released above water surface utilize both and negative buoyancy. Plunging also introduce air into column, which can reduce possibility hypoxic zones. In contrast unconfined jets, confined include a confining tube, or downcomer...

In this study, thermoelectric generation with impinging hot and cold nanofluid jets is considered computational fluid dynamics by using the finite element method. Highly conductive CNT particles are used in water jets. Impacts of Reynolds number nanojet stream combinations (between (Re1, Re2) = (250, 250) to (1000, 1000)), horizontal distance jet inlet from device (r1, r2) (?0.25, ?0.25) (1.5, ...

Sweeping jets are oscillating generated by fluidic oscillators, i.e., devices designed to produce an oscillation of the flow without use any moving parts (Raghu, 2013). A typical configuration such consists expansion chamber connected a high-pressure supply via converging nozzle and provided with feedback channels. The motion in is triggered inherent instability sustained rate across Recently, ...