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Experimental study of the effect of orifice configuration on the performance of peripheral jets

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3 two of the interchangeable inserts in the base plate of the model and are not tapered or contoured. The geometry of the…
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4 from the dynamic pressure at the exit, but over the range of values perti- nent to this study, both techniques gave the…
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5 Looking at these two figures one may observe that the uniform pres- sure built up inside the chamber varies essentially…
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transferred from the metal strip to a paper background from which it can now be reproduced. These pictures are presented in…
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7 from the model. Although the lampblack figures show the flow spreading out to quite an extent, it must be emphasi~ed that…
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in the vicinity of the peripheral jet curtain exit it is necessary to pay a penalty in terms of the lift that will be…
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1. 2. 3. 9 REFERENCES Ames Research Staff, Equations, Tables, and Charts for Compressible Flow. NACA TR 1135, 1953. Kuhn…
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DIFFUSER < 1------- ---- , FOAM DIVIDER II II 111 ! 1 I II 11 I 1 / 1 I BASE PLATE I II I I, GROUNO PLATE…
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FOAM DIVIDER EXIT SLOT I I I I / I I 1 I \ \ SETTLING CHAMBER TOP VIEW OF GROUND EFFECT TEST MODEL FIGURE 2 ~…
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PHOTOGRAPHIC VIEW OF TEST MODEL FIGURE 3
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PHOTOGRAPHIC VIEW OF TEST FACILITIES FIGURE 4
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1000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 OJ SINGLE ROW OF LARGE HOLES o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0…
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0 0 0 0 0 0 -' -' 0::: - a:: 0 0 -a:: 0 0 0 N # 0: D U) D (J) w UJ ...J ..J 0 0 0 ::J:…
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BASE OF 11.40 DEL INDUCED VORTEX --" -t \ ( \ \ I \ if ~-_/ JET CURTAIN GROUND PLATE INDUCED VORTEX…
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PRESSURE PROFILE ALONG GROUND PLATE CLEARANCE HEIGHT • 1.!5 IN. 7~------~------~--------~------~--------~--------r-------~ 1…
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PRESSURE PROFILE A LONG GROUND PLATE CLEARANCE HEIGHT • 1.5 IN. 7~------~------~--------~------~------~--------,-------,…
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~ .. ,~ II ' 7 II - ~ ~ • ji tal 1i' l- e !It ~ i (t) 6 ~ .., % u Z - - I, III I: 4…
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·> • .. ,r~ .\~ I' J ~ I ~ . , %( . ll.1 f - I&. o PRESSURE PROFILE ALONG GROUND PLATE CLEARANCE…
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..... ..... o en LIJ :z: u z PRESSURE DISTRIBUTION ALONG MODEL BASE DOUBLE ROW OF HOLES -JET CURTAIN MO-"ENTU-…
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1L o (f) I.U ~ 1.0 Z - IX I.U CD ::2 .:( .4 x: u .. .2 .4 CHAMBER PRESSURE VI JET CURTAIN MOMENTUM…
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CHAMBER PRESSURE vs JET CURTAIN MOMENTUM CLEARANCE HEIGHT • US IN. -Ie ~I~r--------r…
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9 GROUND PLATE FLOW FIELD UNDER A 1/16-INCH CONTINUOUS SLOT FIGURE 15 111 lJII :11 .. 1J .~~ .. ~" .l'j
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BASE OF MODEL GROUND PLATE FLOW FIELD UNDER A DOUBLE ROW OF HOLES FIGURE 16 ,. ,. ,. ., ~ "~~"'lI…
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BASE OF MODEL GROUND PLATE FLOW FIELD UNDER A SINGLE ROW OF HOLES (DIRECTLY UNDER ONE HOLE) FIGURE 17
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~~----.-~~ GROUND PLATE FLOW FIELD UNDER A SINGLE ROW OF HOLES (BETWEEN TWO HOLES) FIGURE 18
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