Analysis of reynolds number effects in fluid flow through. Laminar flow is defined as that type of flow in which the fluid particles move along welldefined paths or stream lines and all the stream lines are straight and. Osbourne reynolds apparatus experiment free download as word doc. The apparatus is a valuable resource in fluid flow visualization since it permits to read. Osborne reynolds apparatus h215 experiment osborne reynolds apparatus. Che241 lab report solteq osborne reynolds demonstration fm11 2015. Hb 024 mechanical engineering 2 lab osborne reynolds week 1 apparatus 201820191t instruction manual prepared by. Laboratory apparatus two types of equipment will be used in this laboratory. This report describes an investigation into the effects of reynolds number on the flow through two dimensional cascades of the diffusing type. Aerodynamic forces on a stationary and oscillating. Discussion osborne reynolds 23 august 1832 21 february 1912 was a prominent innovator in the understanding of fluid dynamics and mechanics. Freestanding engineering educational apparatus to give a visual demonstration of. Reynolds apparatus laminar turbulant flow visualization product demostration video.
Separately, his studies of heat transfer between solids. Ensure that all of you fill up instrument user book. The rootmeansquare unsteady lift coefficient at mach numbers less than 0. The report should be free of spelling and grammatical errors. The following apparatus is used in this experiment. Reynolds apparatus, stop watch, measuring cylinder 2. Reynolds apparatus experiment bicol university scribd. Improvements in boiler and condenser design hydraulics and hydrodynamics 0. In fluid mechanics, the reynolds number is the ratio of inertial forces v s 1 to viscous. At low reynolds numbers, flows tend to be dominated by laminar sheetlike flow, while at high reynolds numbers turbulence results from differences in the fluids speed and direction, which may sometimes intersect or even move counter to the. Place the head tank overflow tube in the volumetric tank of the hydraulics bench.
Position the reynolds apparatus on a fixed, vibrationfree surface not on the hydraulics bench, and ensure that the base is horizontal and the test section is. Pdf design and construction of an apparatus to visualize. The flow rate can be varied over a range of values. Reynolds apparatus, reynolds apparatus manufacturers. Reynold number fluid mechanicsfm linkedin slideshare. Wk1instruction manual hb 024 osborne reynolds apparatus. The primary purpose of this piece of apparatus is to demonstrate visually a wide range of hydraulic. This was conducted to demonstrate the existence of two types of flow. The apparatus consists of a water supply tank to which a glass tube is connected and enters at the center of glass tube cross section. Reynolds number plays an important role in the study of fluid mechanics. Repeat the experiment by regulating water inlet and outlet to 20, 30, 40 and 60 mls 12. Friction head losses in straight pipes of different sizes can be investigated over a range of reynolds numbers from 103 to nearly 105, thereby covering the laminar. The present experiment is aimed at plotting friction factor as a function of reynolds number for smooth tubes of various diameters.
The apparatus consists of a precisionbore glass pipe test tube held. The first is called the osborne reynolds apparatus fig. Reynolds discovered that, if the same atmospheric pressure were used for experiments with wind tunnel model as a fullsize aircraft would encounter under actual conditions, the experimental results would be invalid. Apparatus consists of a constant head tank and a small tank. Reynolds number apparatus by kristian vince pallar on prezi. Osborne reynolds apparatus fluid mechanics youtube. The reynolds number re is an important dimensionless quantity in fluid mechanics used to help predict flow patterns in different fluid flow situations. Osborne reynolds frs 23 august 1842 21 february 1912 was an innovator in the understanding of fluid dynamics. Reynolds apparatus,reynolds apparatus manufacturers kolkata.
Critical reynolds number is a point on which conversion of the laminar flow into the transient, and the transient flow into the turbulent flow takes place. It is to be used with hb100 hydraulics bench separately supplied hb 100 hydraulic bench it consists of a. To compare the reynolds number and darcy friction coefficient 2. Experimental study of laminar, transitional and turbulent flow. Rustria july 2018 figure 12 details of hb 024 this equipment provides laminar, transitional, and turbulent flow as predicted by osborne reynolds.
The following equipment is required to perform the impact of the jet experiment. Pdf in this work, the design and construction of a didactic experimental. F117 orifice and free jet flow apparatus, with two orifices having diameters of 3 and 6 mm. Applied fluid mechanics lab manual by habib ahmari and shah md imran kabir is licensed under a creative commons attribution. Free standing apparatus that gives a visual demonstration of laminar and turbulent flow. Experiments on lowreynoldsnumber turbulent flow through a square duct article pdf available in journal of fluid mechanics 798. Reynolds apparatus for demonstrating laminar and turbulent flow. I positioned the apparatus on the bench and connected the inlet pipe to the bench feet. A convective heat transfer measurement system, detailed below. H215 osbornereynods apparatus free standing apparatus that gives a visual demonstration of laminar and turbulent flow. What is reynolds number and what are its applications.
Applied fluid mechanics lab manual by habib ahmari and shah md imran kabir is licensed. It is a freestanding piece of equipment for demonstrating the transition between. The apparatus is characterized by durability, userfriendly interface, hassle free maintenance, spacespacing structure, rugged body. Reynolds noticed that in situations of flow via pipe for values of re smaller than 2000 the flow is laminar while offer re greater 40000 it is turbulent and for 2000 12. Pdf experiments on lowreynoldsnumber turbulent flow. Cee 341 fluid mechanics for civil engineers lab manual. Pdf design and construction of an apparatus to visualize fluid. Pdf on jan 29, 2018, f iturbidejimenez and others published design and construction of an apparatus to visualize fluid flowsrmf 4 find, read and cite all the research you need on. An orifice is an opening in the side or base of tank or reservoir through which fluid is discharge in the form of a jet. In this channel of youtube are edited videos for high school students as well as for students of physics, chemistry, biology, medicine, pharmacy, agriculture. An apparatus is available in the laboratory that is capable of repeating reynolds original experiments. In this sciencestruck article, we shall study about the significance of reynolds number, and find out what it is used for. The osborne reynolds experimentdemonstrator is the experiment that is conducted mainly to study the criterion of laminar, transitional and turbulent flow. Connect the bench outflow to the head tank inlet pipe.
The objective of this experiment is to repeat reynolds experiment and to observe and report on the resulting flow regimes as a function of reynolds number. Since the sphere is falling with constant velocity there is a. Che241 lab report flowmeter measurement apparatus fm101 2015. Conclusion conclusion due to the lab result experiment. Due to the lab result experiment based on osborne reynold experiment, we have comply the characteristics of each flow by using the formula mainly laminar flow whose re number lesser than 2300, turbulent flow more than 4000 and the transitional flow with re number lies between 2300 and 4000 with the average re number of 391. Bernoullis equation costing osbourne reynolds laminar turbulent methodology equipment design reynolds number apparatus british engineer, physicist and professor notable contributions. L and is used for determining whether a flow will be laminar or turbulent. Then i lowered the dye injector until it was just above the bell mouth inlet. The procedure for conducting laboratory experiment to find critical reynolds number for a pipe flow in different discharge.
Reynolds apparatus reynoldss number is a dimension less number used by engineers to determine type of fluid flow and testing on scale down models of airplanes, ships etc. The discharge will depend up on the head of the fluid h above the level of the orifice. Introduction the flow of fluid in a pipe under pressure is used to reach many goals. Position the reynolds apparatus on a fixed, vibration free surface not on the hydraulics bench, and ensure that the base is horizontal and the test section is vertical. Provide a drawing of the apparatus with all important dimensions and units of measurements 5 g procedure orderly concise list of the steps your group performed 5 do not simply copy the manual. Intro to fluid flow dublin institute of technology. F110 hydraulics bench, f116 impacts of a jet apparatus with three flow deflectors with deflection angles of 90, 120, and 180 degrees, and. It is the ratio of inertia force to the viscous force acting in any flow phenomenon. We are reckoned among the leading manufacturers and suppliers of reynolds apparatus in kolkata, west bengal. The marbles in the water tank are to calm the inflow so there will be no turbulence in the top tank to get into the flow tube in the tube. The experiment on reynolds number apparatus has been discussed, and different flows of fluid have been considered. Reynolds apparatus experiment bicol university free download as pdf file. Pdf che241 lab report flowmeter measurement apparatus.
Get reynolds apparatus at best price with product specifications. The concept of mathematically predicting the flow pattern of fluids was first introduced by george gabriel stokes in. To compare the theoretical and experimental friction head losses in pipe flow apparatus 1. A good knowledge of the fluid flow and pipe pressure at some point along the path of the pipe may facilitate to determine the size, capacity and material of the pipe for a system. Stokes law is a proposition that relates the drag force experienced by a falling sphere to the spheres constant velocity in a liquid of known viscosity. And from the feature of streaming this dye fluid, reynold give a number can be. Stokes law, reynolds number, and measuring liquid viscosity. Osborne reynolds conducted the experiment in the year 1883.