2019
DOI: 10.1007/s00231-019-02702-1
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Convective heat transfer on a flat target surface impinged by pulsating jet with an additional transmission chamber

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Cited by 17 publications
(3 citation statements)
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“…Coherent vortical structures are periodically formed by pulsating jet impingement, which leads to heat transfer enhancement as compared to continuous jets. Experimental tests and numerical computations were performed by Tang et al [115] to study heat transfer performance of pulsating jet impingement on a flat target surface. At a fixed duty cycle (DC) = 0.5, the experiments were performed for a range of Reynolds numbers from 5000 to 15,000, an operation frequency range from 5 to 40 Hz, and a nozzle-target surface distance (H/d) range from 2 to 10.…”
Section: Excited Jetsmentioning
confidence: 99%
“…Coherent vortical structures are periodically formed by pulsating jet impingement, which leads to heat transfer enhancement as compared to continuous jets. Experimental tests and numerical computations were performed by Tang et al [115] to study heat transfer performance of pulsating jet impingement on a flat target surface. At a fixed duty cycle (DC) = 0.5, the experiments were performed for a range of Reynolds numbers from 5000 to 15,000, an operation frequency range from 5 to 40 Hz, and a nozzle-target surface distance (H/d) range from 2 to 10.…”
Section: Excited Jetsmentioning
confidence: 99%
“…There is no guidance on how to create those pulses yet, but commercial fluidic applications such as garden blowers are developing technologies to pulsate the flow without moving parts. Tang et al [119] and Lyu et al [120] performed an experimental and numerical investigation of pulsating jets. They used frequencies between 5 to 40 Hz with a speaker and observed a higher heat transfer coefficient near the stagnation region.…”
Section: Crossflow Regulationmentioning
confidence: 99%
“…Heat transfer intensification was higher in the wall jet zone than near the stagnation point. An experimental and numerical study of an intermittent jet impingement in the presence of a confined upper wall was carried out in [20]. The experiments were carried out in the following range of parameters: 2 ≤ H/D ≤ 10, 5000 ≤ Re ≤ 15000, and 5 ≤ f ≤ 40 Hz.…”
Section: Introductionmentioning
confidence: 99%