SAE Technical Paper Series 2016
DOI: 10.4271/2016-01-2331
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Computations and Experiments for Clarifying Compression Level and Stability of Colliding Pulsed Supermulti-Jets in a Piston-Less Single-Point Autoignition Engine

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Cited by 9 publications
(5 citation statements)
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“…In Figs. 16-18, 200-500 µs is used, which will correspond to the order of pulse period generated by airfoils in cascades of traditional turbofan engines and also rotary valves employed for our new engines having the supermulti-jets colliding with pulse (Naitoh et al, 2016a(Naitoh et al, , 2016c. The high pulse speed produced by airfoils in cascades or rotary valve will also result in strong shock fronts for maximizing the collision pressure and temperature, because the Tsuru, Konagaya, Kawaguchi and Naitoh, Journal of Thermal Science and Technology, Vol.13, No.1 (2018) tip speeds of cascades or rotary valves become the level of sound speed and more.…”
Section: Comparison Of Experimental and Computational Results 51 Vismentioning
confidence: 99%
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“…In Figs. 16-18, 200-500 µs is used, which will correspond to the order of pulse period generated by airfoils in cascades of traditional turbofan engines and also rotary valves employed for our new engines having the supermulti-jets colliding with pulse (Naitoh et al, 2016a(Naitoh et al, , 2016c. The high pulse speed produced by airfoils in cascades or rotary valve will also result in strong shock fronts for maximizing the collision pressure and temperature, because the Tsuru, Konagaya, Kawaguchi and Naitoh, Journal of Thermal Science and Technology, Vol.13, No.1 (2018) tip speeds of cascades or rotary valves become the level of sound speed and more.…”
Section: Comparison Of Experimental and Computational Results 51 Vismentioning
confidence: 99%
“…9 to 18 present evidence of the stable compression due to the collision of supermulti-jets in whole one cycle. (At operating conditions that rotating speeds of rotary valves employed for our new engines having the supermulti-jets colliding with pulse (Naitoh et al, 2016a(Naitoh et al, , 2016c are lower, we can make longer between pulsed jets, i.e., for closing period of rotary valves. This long silent situation of valve closed during a long time will lead to very low speed of flow in chamber, which will result in a stabilization effect of axisymmetric collision for the next cycle.…”
Section: Comparison Of Experimental and Computational Results 51 Vismentioning
confidence: 99%
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