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

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VELOCITY PROFILES ALONG THE GROUND PLATE SINGLE ROW OF LARGE HOLES JET CURTAIN VELOCiTY • 300 FT/SEC t- SCALE: r CM…
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AMPLIFICATION FACTOR V8 JET CURTAIN MOMENTUM CLEARANCE HEIGHT • 1.0 IN. ~ . ·······1···· !I - lL ..J Q. 3 t…
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Facility T-3 : a wind-tunnel for tubeflight experimentation

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PROJECT TUBEFLIOHT
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TR PT 6807 FACILITY T-3 A WIND-TUNNEL FOR TUBEFLIGHT EXPERIMENTATION by s. Krishnamurthy R. E. Duffy This research was…
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ABSTRACT The Rensselaer wind tunnel facility T-3 bas been developed for the purpose of measuring the forces and moments on…
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LIST OF SYMBOLS Symbols u i flow velocity (ft/sec) ~ air density qi dynamic pressure (#/sq.ft.) Ci loss coefficient…
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INTRODUCTION The Rensselaer Polytechnic Institute T-3 Facility is an open-circuit indraft type wind tunnel designed for the…
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2 through struts. The tensile or compressive forces on the supporting columns are measured by a system of piezo-e1ectric…
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3 test section was required in order to have fully developed flow over the vehicle. The minimum effective test-section length…
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the nose at 13" aft of the beginning of the test section is shown in Figs. 3a and 3b. It is seen that the change in…
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5 through about 1 ft from the entrance without undergoing any significant change in the pressure distribution over it.…
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like vanes, suction, steps etc. which counteract the effect of the adverse pressure gradients in the diffuser. 6 In view of…
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7 INSTRUMENTATION Several available systems were compared in the light of the following considerations: a) system response…
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8 Entrance Section Losses The losses in this section are due to skin friction on the walls. The frictional force on the…
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9 Cfm' in the portion of the test section occupied by the model is given by C =. 2.. L C (Llom)2.. fm Do fo Uo (6…
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10 The horsepower required is obtained from (10) The power required as a function of test-section velocity for the selected…
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11 PRELIMINARY CALIBRATION Early in the initial design of T-3 it was decided to calibrate the facility in two steps. The…
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12 REFERENCES 1. Smith, R.E. and Chi-Tech Wang; "Contracting Cones Giving Uniform Throat Speeds," J. Aero.…
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13 ~.~ »\ TEST SECTION VENTURI , FAN FIG. 1. Test-Rig for Pressure Distribution Studies Mrl-----------------'·5…
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