tekanan statitka 2 Pengenalan jenis aliran fluida Aliran laminar dan turbulen, pengembangan persamaan untuk penentuan jenis aliran: bilangan reynolds. teori dan aspek praktis mekanika fluida, dimulai dengan pembahasan sifat- sifat fluida, aliran laminer dan turbulen dalam pipa dan disekeliling benda padat, . Ya Moody diagram sangat bermanfaat untuk menghitung aliran yang nilai faktor gesekan. dan jenis aliran apakah turbulen ataukah laminer.

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Registration Forgot your password? Dimensional Analysis What are the important forces? In the rough pipe law region if the flow rate is doubled be as specific as possible What happens to the major head loss? The viscous head term is scaled by the pipe friction factor f. Foul Sewerage Design Laminsr. The k values of fittings Elbow, Flanged Long Radius 45o 0. Penggunaan option button dan alogaritma if then else pada visual basic.

Other mathematical correlations also exist, for example, Daan By continuity, we then know that the fluid velocity V stays constant along the pipe. Why is the effect of temperature so small? Size of the Fluctuations or Eddies Eddies must be smaller than the physical dimension of the flow Generally the largest eddies are of similar size to the smallest dimension of the flow Examples of turbulence length scales rivers: If the reader currently does not own this manual, it is highly recommended that it be obtained.

TL Mekanika Fluida I Benno Rahardyan Pertemuan. – ppt download

laminad Figure 2 provides a graph of CD versus ReD for a sphere. To use this website, you must agree to our Privacy Policyincluding cookie policy. The reader is cautioned that these equations render poor continuity across certain ranges of application.

Similar behavior can be seen as water flows at a very high velocity from the reservoir behind the Glen Canyon Dam in Colorado. For commercial pipes this is usually a very small number. Pipa terletak miring dengan kemiringan 1: The engineer then multiplies the quantity of each type of valve and fitting by its respective equivalent length and adds them together.


Readings Calculated values h’f inch. We think you have liked this presentation.

There is no way to solve for the flow rate, or Q. Furthermore there are three unknown velocities and hence one further equation is necessary for their solution. Friction loss along the pipe, and momentum loss through diameter changes and corners take head energy out of a system that theoretically conserves energy. Terdapat pengukur tekanan pada pint masuk dan padaleher venturi yang berada 12 in. The combined overall drag curve therefore shows a minimum at some airspeed – an aircraft flying at this speed will be at or close to its optimal efficiency.

Others such as those based on the Delaware groups work, could have been reproduced equally well, having formed an integral part of the thermal design of shell-and-tube exchangers, in the West for many years; see the articles by Taborek in the Heat Exchanger Design Handbook and Mueller in the Handbook of Heat Transfer [Rohsenhow and Hartnett ].

Assume the entry loss to be 0. Pressure drop coefficient vs. The EL is equal to the sum of the fluid’s velocity head, the pressure, and the elevation head. Calculate D or Q using Swamee-Jain equations Calculate minor losses Find new major losses by subtracting minor losses from total head loss Solution Technique: Draw the total energy and the hydraulic gradien lines and determine in milimeter of water the total loss head rise in the fan. The greater the depth, the higher the velocity.

For flow around bluff bodies, drag is most often dominating, and then the qualifier “parasitic” is meaningless. Any air present was allowed to escape by bleeding off some water through bleed valves situated at the hughest point of the 2 inch dimater pipe and at the top of the manometer.

moody diagram dan viskositas : cara penggunaan ~ Langit Hasnan

What is the effect of temperature? See Tubes, Crossflow over. About Me hasnan Graduate mold design specialist using AOTS scheme in Nagano Japan,works as mold designer and engineer almost 5 years, now still studying master at University of Indonesia, founder of Satu Teknik Engineering Consulting satu-teknik. At higher values of ReD, it is necessary to rely on empirical expressions based on experiments.


Isi kuliah mencakup konsep perpindahan momentum, berupa sifat kekentalan fluida yang akan mempengaruhi distribusi aliran dalam pipa dan disekeliling benda padat, metoda pengukuran aliran fluida, perhitungan yang menyangkut penurunan tekanan yang terkait dengan daya pompa, atau kipas serta daya yang dapat dibangkitkan Silabus Lengkap dari aliran fluida melalui turbin.

Therefore, to correctly calculate the flow and pressures in pipe systems, the Bernoulli Equation must be modified. Others simply use the symbol f to denote Eu. Still, the total head h or energy remains constant. The Problem We have the control volume energy equation for pipe flow We need to be able to predict the head loss term. Sensor ini menggunakan prinsip perbedaan tekanan untuk mengetahui kecepatan aliran dengan persamaan Bernoulli.

Alran Center Find new research papers in: For example, there may be two gate valves, a 90o elbow and a flow thru tee.

TL2101 Mekanika Fluida I Benno Rahardyan Pertemuan.

Hazen-Williams Coefficient C Condition PVC Extremely smooth, straight pipes; asbestos cement Very smooth pipes; concrete; new cast iron Wood stave; new welded steel Vitrified clay; new riveted steel Cast iron after years of use 95 Riveted steel after years of use Old pipes in bad condition.

Titik B terbuka ke udara luar. One such application is the determination of the force due to the inertia of the fluid when it is suddenly brought to rest. The mean superficial velocities is useful when simulating large-scale flow in heat exchangers. For a given shaped object, the flow pattern and related forces depend wliran on various parameters such as size, orientation, speed and fluid properties.

Therefore, we need a new dynamic approach to Fluid Mechanics. Share to Twitter Share to Facebook. What are the important geometric parameters?

The approach does not consider turbulence and subsequent losses created by different velocities.