Publications related to Turbojet

Turbocompressors for Domestic Heat Pumps – A Critical Review

Jürg Alexander Schiffmann, Jean-Baptiste Carré

Small-scale, oil-free radial compressors on gas lubricated bearings represent a promising alternative to state-of-the-art compressor technology for driving domestic sized heat pumps. The inherent characteristics of turbocompressors manage to fit the heat p ...

2017

A Continuation Multi Level Monte Carlo (C-MLMC) method for uncertainty quantification in compressible inviscid aerodynamics

Fabio Nobile, Pénélope Leyland, Michele Pisaroni

In this work we apply the Continuation Multi-Level Monte Carlo (C-MLMC) algorithm proposed in Collier et al. (2014) to efficiently propagate operating and geometric uncertainties in inviscid compressible aerodynamics numerical simulations. The key idea of ...

Elsevier2017

Dynamic response of an embedded block impacted by aerated high-velocity jets

Anton Schleiss, Rafael Xavier Meriade Duarte

Uplift of blocks from the rock mass at the bottom of plunge pools is the main process of the scouring phenomenon caused by high-velocity jet impact. Although the influence of water and rock on dynamic block ejection has been investigated, no systematic res ...

Taylor & Francis Ltd2016

Impact of rotating and fixed nozzles on vortex breakdown in compressible swirling jet flows

François Gallaire, Leonhard Kleiser

Vortex breakdown of swirling, round jet flows is investigated in the compressible, subsonic regime by means of Direct Numerical Simulation (DNS). This is achieved by solving the compressible Navier-Stokes equations on a cylindrical grid using high-order sp ...

Elsevier2016

Optimization of a Shared Tailrace Channel of Two Pumped-Storage Plants by Physical and Numerical Modeling

Giovanni De Cesare, Martin Peter Bieri, Stéphane Christian Olivier Terrier, Sylvain Candolfi

Pump and turbine operations lead to head losses in the tailrace channel. Pumping discharge may be limited due to potential air entrainment into the pump shaft when the downstream reservoir is at its lowest level and the head losses are too high. Regarding ...

2014

Influence of air entrainment on rock scour development and block stability in plunge pools

Rafael Xavier Meriade Duarte

Rock scour occurring near dam foundations due to high-velocity jets of spillways impinging into the plunge pool is a major concern regarding dam safety. Scour in fractured rock resulting from high-velocity jet impact is a complex phenomenon, which involves ...

EPFL - LCH2014

Mind the gap: a new insight into the tip leakage vortex using stereo-PIV

Mohamed Farhat, Cécile Münch-Alligné, Matthieu Dreyer

The tip leakage vortex (TLV), which develops in the clearance between the rotor and the stator of axial hydro turbines, has been studied for decades. Yet, many associated phenomena are still not understood. For instance, it remains unclear how the clearanc ...

Springer2014

Experimental and numerical investigation of narrow impingement cooling channels

Peter Ott, Alexandros Terzis, Bernhard Weigand

Impingement cooling effectiveness of gas turbine vanes and blades can be further increased due to the manufacturing feasibility of integrally cast airfoils which can provide narrow impingement cooling cavities. This study examines experimentally using the ...

Elsevier2013

Flow and waves in a common tailrace channel of two pump-storage plants - physical and numerical simulation

Giovanni De Cesare, Martin Peter Bieri, Stéphane Christian Olivier Terrier, Sylvain Candolfi

2012

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Turbojet

Turbocompressors for Domestic Heat Pumps – A Critical Review

A Continuation Multi Level Monte Carlo (C-MLMC) method for uncertainty quantification in compressible inviscid aerodynamics

Dynamic response of an embedded block impacted by aerated high-velocity jets

Impact of rotating and fixed nozzles on vortex breakdown in compressible swirling jet flows

Optimization of a Shared Tailrace Channel of Two Pumped-Storage Plants by Physical and Numerical Modeling

Influence of air entrainment on rock scour development and block stability in plunge pools

Mind the gap: a new insight into the tip leakage vortex using stereo-PIV

Experimental and numerical investigation of narrow impingement cooling channels

Flow and waves in a common tailrace channel of two pump-storage plants - physical and numerical simulation

Deflector-jets affected by pre-aerated approach flow

Graph Chatbot

Chat with Graph Search

Dynamic response of an embedded block impacted by aerated high-velocity jets

Impact of rotating and fixed nozzles on vortex breakdown in compressible swirling jet flows

A Continuation Multi Level Monte Carlo (C-MLMC) method for uncertainty quantification in compressible inviscid aerodynamics

Experimental and numerical investigation of narrow impingement cooling channels

Influence of air entrainment on rock scour development and block stability in plunge pools

Deflector-jets affected by pre-aerated approach flow

Turbocompressors for Domestic Heat Pumps – A Critical Review

Optimization of a Shared Tailrace Channel of Two Pumped-Storage Plants by Physical and Numerical Modeling

Mind the gap: a new insight into the tip leakage vortex using stereo-PIV

Flow and waves in a common tailrace channel of two pump-storage plants - physical and numerical simulation