Bernouli Report Final

Bernouli Report Final - HES2340 FLUID MECHANICS 1 1.0...

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HES2340 FLUID MECHANICS 1 1.0 Introduction
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HES2340 FLUID MECHANICS 1 APPARATUS 1. Venture meter 2. Pad of manometer tubes 3. Hydraulic bench 4. Water 5. Water tank equipped with valves water controller 6. Water host and tubes The unit is mounted on a base board which is to be placed on top of the Hydraulic Bench (Model: FM110). This base board has four adjustable feet to level the apparatus. The main test section is an accurately machined acrylic venturi of varying circular cross section. It is provided with a number of side hole pressure tappings, which are connected to the manometer tubes on the rig. These tappings allow the measurement of static pressure head simultaneously at each of 6 sections. The tapping positions and the test section diameters are shown in Appendix A. The test section incorporates two unions, one at either end, to facilitate reversal for convergent or divergent testing as illustrated in Figure 1 and Figure 2. A hypodermic tube, the total pressure head probe, is provided which may be positioned to read the total pressure head at any section of the duct. This total pressure head probe may be moved after slacking the gland nut; this nut should be re-tightened by hand after adjustment. An additional tapping is provided to facilitate setting up. All eight pressure tapings are connected to a bank of pressurized manometer tubes. Pressurization of the manometers is facilitated by connecting any hand pump to the inlet valve on the manometer manifold. The unit is connected to the hydraulic bench using flexible hoses. The hoses and the connections are equipped with rapid action couplings. The flexible hose attached to the outlet pipe which should be directed to the volumetric measuring tank on the hydraulics bench. A flow control valve is incorporated downstream of the test section. Flow rate and pressure in the apparatus may be varied independently by adjustment of the flow control valve and the bench supply control valve. The unit consists of the followings: a) Venturi
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The venturi meter is made of transparent acrylic with the following specifications: Throat diameter : 16 mm Upstream Diameter: 26 mm Designed Flow Rate : 20 LPM b) Manometer There are eight manometer tubes; each length 320 mm, for static pressure and total head measuring along the venturi meter. The manometer tubes are connected to an air bleed screw for air release as well as tubes pressurization. c) Baseboard The baseboard is epoxy coated and designed with 4 height adjustable stands to level the venturi meter. d) Discharge valve One discharge valve is installed at the venturi discharge section for flow rate control. e) Connections Hose Connections are installed at both inlet and outlet. f)
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Bernouli Report Final - HES2340 FLUID MECHANICS 1 1.0...

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