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Head losses in junction manholes for free surface flows in circular conduits

Publications associées (25)

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An adjoint-based approach to the optimal control of separated flows

Edouard Boujo

Flow separation is relevant to many industrial applications, since it is detrimental to the aerodynamic performance of vehicles, induces vibrations in mechanical structures, but can also contribute to improve mixing in combustion devices. In this thesis, t ...

EPFL2014

Jets opposing turbidity currents and open channel flows

Anton Schleiss, Christoph Oehy

Hydraulic jumps at the tail end of spillways are usually induced by baffle blocks or other obstacles. Such jumps can also be induced by jets that oppose the main flow. Another application is to back up turbidity currents in reservoirs by means of opposing ...

Asce-Amer Soc Civil Engineers2013

INDEX OF ENERGY PRESENT VALUE: Assessment tool for energy savings and distributed energy production

Philippe Bélanger

Areas/Paper type – 08. Integration of renewable energy in the built environment, Methodology Background – Today’s simulation technology in engineering and architecture are very impressive. As a result technology developers have a good idea of the resulting ...

2013

We study the flow within a stationary drop in a Hele-Shaw cell. The experiments are performed in a microfluidic channel, whose surface is patterned with a single hole that serves to anchor the drop while the outer fluid continues to flow. The recirculation ...

Royal Society of Chemistry2012

Non-invasive calibration technique of a 2D hydrodynamic model based on pattern recognition and digital mapping

Paolo Perona

Hydrodynamic models are important tools in civil and environmental engineering. When properly calibrated, numerical flow simulations are helpful to study the impact of floods as natural hazards for the built environment, or as inundation dynamics connectin ...

2011

Free-surface fluid dynamics on moving domains

Thomas Zimmermann, Matthias Preisig

This paper presents a Lagrangian approach for the simulation of two-dimensional free-surface flows along with a systematic validation. Fluid-flow is traditionally modeled using an Eulerian description in association with finite differences and, more recent ...

2011

On the Applicability of Oil and Dye Technique During the Design Phase and Operation of Experimental Rigs

Alexandros Terzis

In this paper, an oil and dye flow visualization technique applied in two different cases of experimental testing is described, namely a single fan in crossflow and the wake of a compressor cascade. In both cases, the mixture of paint was prepared using a ...

2011

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It has been established that primary stability of femoral stems is a determinant of the clinical success of cementless total hip arthroplasty. Excessive interface micromotions may lead to a peri-implant fibrous tissue formation resulting in aseptic looseni ...

2010

Gravity driven flows on inclines can be caused by cold, saline or turbid inflows into water bodies. Another example are cold downslope winds, which are caused by cooling of the atmosphere at the lower boundary. In a well-known contribution, Ellison and Tur ...

2008

Unsteady Numerical Simulations of the Flow Related to the Unstable Energy-Discharge Characteristic of a Medium Specific Speed Double Suction Pump

François Avellan, Olivier Braun, Philippe Dupont

Regions of positive slope in the pressure-discharge characteristics can result in a reduction or even lack of damping of system instabilities. They are therefore one of the major concerns in design and operation of centrifugal pumps as they are limiting th ...

2007