Since air is assumed to be incompressible the density is taken to be 1.225 kg/m3=0.0765 lb/ft3.
g=9.81 m/s2=32.2 ft/s2.
5. The closed-circuit wind tunnel flows air with a velocity of 200 ft/s [between sections (5)...
The closed-circuit wind tunnel flows air with a velocity of 200 fu's (between sections (5) and (6)] at standard condition. The picture and diagram of the wind tunnels are provided below. The flow is driven by a fan that essentially increases the static pressure by the amount Pi-P that is needed to overcome the head losses experienced by the fluid as it flows around the circuit. Determine the pressure rise ( P P ) Conditions) Assume air is incompressible (Mach...
Please explain clearly 2. Consider the following wind tunnel: Vs 200 ft/s (6) (7) Test section Flow-straightening screens Fan Estimate the value of p1-p9 and the horsepower supplied to the fluid by the fan. If a. Location Area (t) Velocity (fts) 36.4 28.6 22.9 22.9 200.0 200.0 80.0 44.4 36.4 22.0 28.0 35.0 35.0 4.0 4.0 10.0 18.0 22.0 2. Consider the following wind tunnel: Vs 200 ft/s (6) (7) Test section Flow-straightening screens Fan Estimate the value of p1-p9...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
summatize the following info and break them into differeng key points. write them in yojr own words apartus 6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...