Effect of orifice length-diameter ratio on the coefficient of discharge of fuel-injection nozzles (1931)
NASA Technical Reports Server (NTRS) · leaf 21
I.A.C.A. Technical Bote Io.369 Fige.10.il 1.00 Grooves alone without noszles. HH—HH- 0.014 L/D ratio - 1.2.3. ■h.40 Injection pressure A 500 lb./sq.in, 0.020 L/D ratio - 3.6.10 + 1000 " ' " o o v 2000 ■ s ■ • 3000 " ■ " 0.030 L/D ratio - 4 .20 o 4000 1 ■ • x 5000 ■ ■ ■ 0.040 L/D ratio - 1 2.3. Ok… … Reynolds lumber Fig.11 Reynolds lumber of groove flow with a helically-grooved stem in an injection valve. Length-diameter ratio - 3. Atmospheric back pressure.
NASA Technical Reports Server (NTRS)
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