Open Channel Flow
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Recent papers in Open Channel Flow
A new nonlinear integral-equation model is derived in terms of hodograph variables for free-surface flow past an arbitrary bottom obstruction. A numerical method, carefully chosen to solve the resulting nonlinear algebraic equations and a... more
The paper addresses the problem of the resistance due to vegetation in an open channel flow, characterized by partially and fully submerged vegetation formed by colonies of bushes. The flow is characterized by significant spatial... more
Coherent structures of turbulent open-channel flow in the wall region of a channel bed were examined quantitatively using experimental data obtained by flow visualization. Successive pictures of flow patterns in two horizontal... more
Urban flooding is an inevitable problem for many cities around the world. In the present paper, modelling approaches and principles for analyses of urban flooding are outlined. The paper shows how urban flooding can be simulated by... more
Mixed flows characterized by a simultaneous occurrence of free surface and pressurized flows are often encountered in hydraulic engineering. Numerous researches have been dedicated to unify the mathematical description of both flows.... more
The feature and configuration of culvert entrance beside the aspect ratio (span/rise) have a key role in determining the hydraulic performance of culver. The conveyance along with the permitted height of head water can be determined... more
Akarsular, evsel tüketim, tarımsal sulama ve endüstri için gerekli olan suyun karşılanmasında, ayrıca uygun taşıma yolları, sürdürülebilir enerji ihtiyacı ve tüm canlıların doğal yaşamları için vazgeçilmez en önemli su kaynaklarından... more
Abstract Dam-break flows usually propagate along rivers and floodplains, where the processes of fluid flow, sediment transport and bed evolution are closely linked. However, the majority of existing two-dimensional (2D) models used to... more
Abstract A simple TVD (Total Variation Diminishing) step is appended to the standard MacCormack scheme for simulating shallow water dynamics. The governing equations are solved on a uniform Cartesian grid system. Two forms of the... more
Turbulent flow in open channels is unique because it is bounded by the free surface and the flow is entirely dominated by the bed turbulence. Both experiments and simulations agree that the large-scale near-wall structures interact with... more
Doğal afetlerin önüne geçebilmek mümkün olmasa da, yıkıcı etkilerini azaltarak can ve mal kaybını en aza indirmek günümüz bilgi ve teknolojileri ile sağlanabilmektedir. Artan nüfus ve sanayinin gelişimine bağlı yüksek sera gazı... more
The unsteady flow can be analysed by Saint-Venant equations. These equations can be solved by characteristics and finite difference methods. The Saint-Venant equations are changed into four complete differential equations in... more
A moderate rainfall event can lead to harsh flash floods in most of the compact cities. Present urbanization happening in these cities creates an imbalance between generated urban runoff volume and effective drainage capacity. For the... more
Fluid Mechanics Problems book for civil and environmental engineering students.
En esta guía se indica brevemente cuales son las técnicas de aforo en canales y presas, la forma de elegir una técnica de aforo para un sitio dado y se hacen unos comentarios sobre la incertidumbre de las mediciones.
An example of carrying out unit hydrograph convolution in order to get the full Hydrograph of a catchment for a given hyetograph is explained in steps. Matrix manipulation using Excel is used for this regard and a simple user defined... more
The Internet has caused the advent of a digital society; wherein almost everything is connected and available from any place. Thus, regardless of their extensive adoption, traditional IP networks are yet complicated and arduous to... more
Proje yönetimini ne düzeyde uygulayabiliyoruz; Olgunluk modellerin tarihsel gelişimi, kullanım nedenleri, uygulamaları.
The application of the Manning equation to partially filled circular pipes is considered. Three different approaches based on the Manning equation are analyzed and compared: (1) using a constant value for the roughness coefficient n and... more
Aliran seragam merupakan salah satu jenis aliran yang sering digunakan dalam perhitungan aliran pada saluran terbuka alami (sungai) maupun saluran terbuka buatan (misalnya saluran drainase dan irigasi). Dalam bab ini, dibahas proses... more
Basic Hydraulic Principles of Open-Channel Flow. HE Jobson, DC Froehlich Available from Books and Open File Report Section, USGS Box 25425, Denver, CO 80225. USGS Open-File Report 88-707, 1988. 150 p, 38 fig, 8 tab, 24 ref., 1988. ...
This paper shows the momentum equation applied to open-channel flow and to study the specific force function in terms of its properties, the definition of a critical flow condition and its non-dimensional form.
Unit Proses : - Sistem fluida (saluran terbuka / open channel dan saluran tertutup / close conduit) - Tipe aliran fluida (waktu: tetap / steady dan tidak tetap / unsteady ; ruang: seragam / uniform dan tidak seragam / varied) -... more
Large-scale roughness renders the flow resistance underestimated with the Manning-Strickler (MS) formula. This can be corrected simply by considering the roughness induced flow constriction. Two modified MS formulas have been therefore... more
The Internet has caused the advent of a digital society; wherein almost everything is connected and available from any place. Thus, regardless of their extensive adoption, traditional IP networks are yet complicated and arduous to... more
This concept paper describes the behavior of a clogged drain in an event of a heavy rainfall. Solid waste accumulates in drainage systems, heavy rainfall, increased runoff volume and stagnation of runoff flow could collectively lead to... more
The present study tries to analyze the water channel junction, their upstream and downstream derived hydraulic jump due to an abrupt variation in the liquid flow phenomenon from the Supercritical to Subcritical stage, and that transforms... more
Abstract The spread of a passive contaminant in an open-channel reach is considered with use of a two-dimensional advection-diffusion equation with the included off-diagonal dispersion coefficients. This paper presents the calculation... more
The application of the Manning equation to partly filled circular channels is considered. The four types of problem that require iterative calculations are elucidated, and explicit solutions proposed in the literature are reviewed. New... more
ÖNSÖZ Doğal afetlerin önüne geçebilmek mümkün olmasa da, yıkıcı etkilerini azaltarak can ve mal kaybını en aza indirmek günümüz bilgi ve teknolojileri ile sağlanabilmektedir. Artan nüfus ve sanayinin gelişimine bağlı yüksek sera gazı... more
¿Cuál es la idea de una casa? Seguramente la imagen mental es la típica casa en la colina en un ocaso de un día de verano. Sin embargo, existen edificaciones que rompen el esquema al fundarse en el agua, un elemento líquido y siempre... more
In floodplains of vegetated channels, transverse exchange processes of mass and momentum are of primary importance as these are directly linked to the river bank stability, sedimentation, and nutrient transport. Despite its importance,... more
Salah satu faktor yang dapat memperburuk kinerja drainase adalah debit limpasan permukaan yang terus meningkat hingga melampaui kapasitas drainase. Studi yang ditulis dalam artikel ini bertujuan untuk menganalisis tingkat penurunan debit... more
The forced hydraulic jump characteristics were studied experimentally using different configurations of a standard USBR baffle blocks. Each configuration was tested under Froude numbers ranged between 2.27 to 9.2 at which the hydraulic... more