The jet angle follows an interesting trend ( figure 7f ): as t ^ r increases from 0.8 to 2, the jet angles gradually increase from 60 ∘ to 120 ∘ , achieving vertical ( 90 ∘ ) at the timely opening at t ^ r = 1.3 .
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The jet angle follows an interesting trend ( figure 7f ): as t ^ r increases from 0.8 to 2, the jet angles gradually increase from 60 ∘ to 120 ∘ , achieving vertical ( 90 ∘ ) at the timely opening at t ^ r = 1.3 .