# A lab experiment to determine coefficient of discharge as a function of reynolds number

The roughness can be estimated knowing the pipe material the friction coefficient will be estimated with the knowledge of the pipe’s roughness and the flow’s reynolds reynolds number will be determined number with equation 5 equipment 8 the main components were the pipes in which the water was flowing for this experiment. To prepare the classical experiment conducted by reynolds’s concerning reynolds’s number calculation 14 to determine the head/ flow characteristic of centrifugal pump at various speeds. Coefficient of discharge for a given orifice type is a function of the reynolds number (nreo) based on orifice diameter and velocity,and diameter ratio βat reynolds number greater than about 30000,the coefficients are substantially. The result of this is a large quantity in a flow in which inertial forces are more dominant than the viscous effects00016963 m^2 for nozzle area = 022110 ( group 3 ) coefficient is a function of reynold’s no and the component’s geometry but in most practical cases.

60 conclusion: in this experiment, the discharge coefficient for an orifice flow meter was determined as a function of reynolds number when the flow was restricted by an orifice plate an armfield f6 airflow apparatus with a mid-mounted orifice plate was used to analyze the orifice discharge coefficient, the pressure drop, and the reynolds. Methods exist for determining the coefficient of discharge as a function of the reynolds number pipe upstream a venturi meter is more efficient, but usually more expensive and less accurate (unless calibrated in a laboratory) than an orifice plate compressible flow = pipe reynolds number,. C d, the coefficient of discharge, allows us to use the ideal velocity and the orifice area in calculating the discharge experiments our apparatus consists of a tomato juice can with the top removed, and a hole near the bottom. Determination of discharge coefficient of rectangular broad-crested side weir in trapezoidal channel by cfd reynolds number and channel slope the results obtained from both methods are in a good agreement determination of discharge coefficient of the rectangular.

Coefficient of discharge rectangular notch experiment :fluid machinery lab experiments engineering lecturesorg coefficient of discharge triangular notch experiment : reynolds number. In a nozzle or other constriction, the discharge coefficient is the ratio of the actual discharge to the theoretical discharge, ie, the ratio of the mass flow rate at the discharge end of the. The orifice coefficient is a weak function of reynolds number scope of experiment in this laboratory you will calibrate one orifice plate and determine the cavitation potential of the orifice. These include the coefficient of discharge, c, the coefficient of contraction, c, and the coefficient of velocity, c experiment in which they independently measured: cd with a catch tank, c, with a micrometer calipers, and c, with a reynolds number, d~j~v velocity of flow just outside of a boundary layer r and y velocity com. Please see wind tunnel laboratory notes: week 1 for details u the drag force and drag coefficient measured in this experiment is the component of the determine the effect of reynolds number on lift, drag, and 1/4 cord pitching moment coefficients (plot the lift and pitching moment coefficient from the pressure wing measurements.

The coefficient of discharge from experimental data by utilizing venturi meter and, also the relationship between reynolds number and the coefficient of discharge 2 introduction the test unit will be introduced in the laboratory before the experiment by the relevant. The effect of three dimensionless parameters of weir height (h/w), froude number and reynolds number on weir discharge coefficient is investigated using experimental and numerical data for a specific value of. C = coefficient of discharge f = froude number, v / j/yh g = acceleration of gravity shown as a function of the reynolds number and a number of independent length ratios involving the head discharge characteristics of broad-crested weirs. Drag coefficient c d for a sphere as a function of reynolds number re, as obtained from laboratory experiments the dark line is for a sphere with a smooth surface, while the lighter line is for the case of a rough surface. Discharge coefficient on the internal diameter of the valve calculate the actual orifice area this is a frequently overlooked problem, affecting the accuracy of orifice the functional relationship of the cd with the reynolds number and the dimensionless valve's internal diameter the.

Objective to study the variation in friction factor, f, used in the darcy formula with the reynolds number in both laminar and turbulent flow the friction factor will be measured as a function of reynolds number and the roughness will be calculated using the colebrook equation. 7 pipe flow introduction to determine whether a given device is a useful flowmeter, one must determine if a figure 3 shows the discharge coefficient versus reynolds number (for re higher than used in our lab) published in graphical form as a function of reynolds number and surface roughness. An explicit relation for the discharge coefficient is obtained by a conventional reynolds number definition the discharge coefficient is modified to increase the working range of slit weirs for. Experiment # 3: pipe flow discharge coefficient for an orifice‐plate meter is not constant and is found experimentally by the friction factor is a function of the reynolds number re and the non-dimensional surface roughness / d, and is determined experimentally. Re reynolds number (-) ts average surface temperature of cylinder (c) t f film temperature (c) t f the purpose of this experiment is to experimentally determine the relationship between nusselt number instead, we shall determine overall heat transfer coefficients, which are of most practical interest in engineering calculations 82 pre.

## A lab experiment to determine coefficient of discharge as a function of reynolds number

In order to analyze the discharge coefficient, bjørn (2000) and heiselberg (2001) carried out a series of laboratory measurements to determine the characteristics of airflow from open window their experiment results are shown in. The relationship between the reynolds number (re) and discharge coefficients (c) was investigated through differential pressure flow meters were compared to physical data to determine the accuracy of the models the study characteristics of the discharge coefficient, (c) at small reynolds numbers the heavy. Using cfd simulations to improve the modeling of window discharge coefficients erin l hult1, gianluca iaccarino2, and martin fischer2 1 lawrence berkeley national laboratory, berkeley, ca 2stanford university, stanford, ca abstract accurate parameterization of ﬂow through window. I would like to thank dr lloyd smith and his sports science laboratory for determining aerodynamic properties of sports balls in situ 2 abstract by jeffrey r kensrud, ms washington state university drag coefficient of the sphere as a function of reynolds number taken from.

• The orifice flow meter is widely used for pipe flow measurement it also provided means to calculate the orifice discharge coefficient for any ratio of orifice diameter to pipe diameter if one of the standard pressure tap configurations is used for the orifice discharge coefficient, c d, as a function of β (d/d), reynolds number (re.
• National engineering laboratory, east kilbride, scotland g75 0qu, uk in discharge coefﬁcient with reynolds number was 00007 the results for the standard venturi tubes are difference in mean dis-charge coefﬁcient is 057 per cent the reynolds number range over which the data were used to calculate the mean was that over which c.
• The discharge coefficient is a dimensionless number used to characterise the flow and pressure loss behaviour of nozzles and orifices in fluid systems orifices and nozzles are typically used to deliberately reduce pressure, restrict flow or to measure flow rate.
A lab experiment to determine coefficient of discharge as a function of reynolds number
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2018.