Rapidly Varied Flow â The Hydraulic Jump Use of hydraulic jumps Specific force revisited Sequent or conjugate depths Types of jump Uses of. View HIDROLIKA SALURAN from SI at Bandung Institute of Technology. HIDROLIKA SALURAN TERBUKA SAADAH MEILUFI, ST MT. Hidrolika saluran terbuka (open channel hydraulics): Bab I: prinsip-prinsip dasar hidrolika saluran terbuka; Bab II: aliran seragam / disusun oleh Martono.
|Published (Last):||13 August 2015|
|PDF File Size:||20.61 Mb|
|ePub File Size:||14.83 Mb|
|Price:||Free* [*Free Regsitration Required]|
P3a can be obtained from hydrostatics. The downstream channel is rectangular, 3.
Hidrolika saluran-terbuka – Wen-te Chow – Google Books
Design and AnalysisFlow that a culvert must pass depends on upstream catchment. Aliran Dalam Saluran Terbuka – Gunadarma menganggap bahwa jumlah debit aliran sama dari masing Example 1Considering the previous example on a hydraulic jump, determine the size of the step required to bring the start of the hydraulic jump to the vena contracta after the sluice gate.
Free flow and surcharged conditions. Baffle blocks are often used to increase energy dissipation. Stilling Basin DesignThere is a lot of empirical workA good source of design guidelines is the US Bureau of Land Reclamation USBR Typically the length of a hydraulic jump will approximate to 6 y2-y1where y2 and y1 are the saluraan and upstream conjugate depths.
Hidrolika Saluran Terbuka Documents. The maximum allowable headwater depth is 2. Typically made from precast sections. ReferenceNone for this part.
Hidrolika saluran-terbuka / Ven Te Chow ; alih bahasa E.V. Nensi Rosalia ; editor Yani Sianipar
There is a trash screen at the inlet with 12 20mm diameter bars in a 1. Type varies with flow so multiple analysis required. Approach VelocityPrevious equation is derived from Bernoulli assuming the approach ie upstream velocity is zero. Chapter 13 on Hydraulic Structures is all worth a read.
These equations can be used to determine the depths upstream or downstream of a hydraulic jump. A step in the bed is used to control the position of the jump, ensuring that y3 is artificially raised to the required level to force the jump. Stilling BasinsIt is often necessary to control the location of a hydraulic jump. Locating a Hydraulic JumpThe location of the hydraulic jump is controlled by the downstream depth typically normal depth.
Then, for a wide channel: The depth upstream of the gate is 2. The energy dissipation may require the bed to be protected against scour and it is necessary therefore to know what length to protect. The Froude Number Fr is used to characterize a jump.
Hidrolika Saluran Terbuka
Various types of flow can exist as follows. To dissipate energy after a spillway etc and so prevent scouringTo recover head downstream of an obstructionTo induce mixing and aerationSpecific Force RevisitedOver a short reach of channel, external friction forces can be ignored terbuma if the slope is mild the downstream self-weight body forces can also be ignored.
Typical Stilling Basin DesignExpansions and ContractionsVertical ContractionConsidering a vertical contraction, the momentum change between sections 2 and 3 may be written as: Determine where the hydraulic jump forms.
Published on Nov View 23 Download 0.
Kondisi aliran pada culvert Documents. Assume no energy losses, and that the channel is wide compared to its depth.
The depth upstream of the gate is 5. Hidrolika Saluran Terbuka Download Report. Can connect to chart recorder or satellite etc.
This oscillates from bed to surface and back, producing waves of irregular period downstreamAvoid in design. Hidrolika Terapan Sal Terbuka Documents.
Pratikum Hidrolika Saluran Terbuka Documents. Various values and formulae for CD, which can vary particularly at low flows when viscosity and surface tension come more into playSubmergenceModular flow is flow when downstream level is too low to affect flow over weir you design for this. May extend for many kilometres in cities. Aliran melalui saluran terbuka Documents.
The six possible types of flow as shown. ExampleFlow enters a channel through an undershot sluice gate. CulvertsDefinitionDesign of culvertsAnalysis of existing culvertsDefinition of CulvertsCovered channel or pipe carrying a watercourse under an obstruction such as a road.
Determine the flow through the gate and the horizontal force on the gate. This is a step-up; use it to move or fix jump upstreamVertical ExpansionSimilarly: Sluice GatesGiven upstream water levelDetermine required gate opening to pass a particular dischargeEnergy principle applies: ImportantYou have to use Specific Force for hydraulic jumps because the friction loss in the fluid due to the eddying is significantSpecific Energy does not work because it neglects frictionSpecific Force wont work on weirs etc because it does not consider the force on the weir itself.