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Search results for 'large eddy dimulation and related techniques'

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    Large Eddy simulation and related techniques article pay-per-view 25€/article

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    The purpose of these Lecture Series notes is to offer a full overview of the present development and the potential of the Large Eddy Simulation (LES) of turbulent flows.

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    Effect of system rotation on turbulence with applications to turbomachinery article pay-per-view 25€/article

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    Advances in aero-thermodynamics, aero-elasticity and aero-acoustics largely depend on the understanding of the flow structures, and the ability to control them. The first lecture note reviews the various approaches that are being followed for plasma flow control. The fundamental interaction mechanisms are presented together with the challenges associated to their implementation depending on the flow regime. A presentation on the mechanisms for the generation of momentum transfer using offset dielectric barrier discharges follows, focusing on the physics of the breakdown formation. The next lecture note addresses phenomenological models that can be used in conjunction with CFD codes, from simple algebraic equations to complex set of partial difference equations. The first part is concluded with the use of DBD actuators in various applications for internal and extemal flow control, over a range of Mach numbers from 0.1 to 3.5, in a wide static pressure range from 0.1 to 9 bar. The second part of the proceedings starts with the analysis of the goveming equations of glow discharges in supersonic and hypersonic flows. The estimations of characteristics time scales in high speed flow highlight the influence of gas motion on the electro-dynamic structure. The second course note demonstrates successful plasma applications in the lab at high speed, for drag reduction, plasma-induced generation of shock waves, and artificial flow separation. The third lecture note describes recent experimental and computational research in identifying and modeling the gasdynamic and therrnochemical processes of the plasmoid generation with micro—wave and laser discharge.

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    Internal cooling in turbomachinary article pay-per-view 25€/article

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    The aim of these Lecture Series proceedings is to look at the state of the art achievements in internal cooling systems, both from an experimental as from a computational point of view. Although most of the lecturers come from the turbomachinery community, this Lecture Series notes are also of interest for those interested in various forced convection heat transfer and cooling problems.

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    Numerical investigations in turbomachinery: The state of the art article pay-per-view 25€/article

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    The objective of these Lecture Series notes is to review the latest developments and achievements in the field of computational techniques as applied to turbomachinery flows. Standard and advanced techniques currently used on a routine basis both in the academic and industrial environment are revised, and their merits and shortcoming analyzed on the basis of test problems of practical engineering relevance.

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    Structural design of aircraft engines: Key obectives and techniques article pay-per-view 25€/article

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    The continuous trend in weight reduction together with novel engine architectures results in large structural and thermal loads, with narrower security margins. The lecture note on aircraft engine reviews the main challenges of structural design of an aircraft engine, and the associated certification constraints. The first part of these proceedings addresses the engine behaviour (whole engine dynamics, impacts, and thermal loads). Whole Engine dynamics overviews how to model the different elements of the engine to study the dynamic behaviour of the assembled system while respecting design criteria. Foreign object damage and fan blade out describes the methodologies currently used to perform simulations in compressor blades to predict the integrity of the structure.

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  6. Review of the VKI Doctoral research 2013-2014

    Review of the VKI Doctoral Research 2013-2014 - Free download

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    The fifth symposium on the doctoral research of the von Karman Institute for Fluid Dynamics took place during the period March 10 to 12, 2014. The doctoral students have presented the progress of their research work carried out in the three departments: Aeronautics and Aerospace, Environmental and Applied Fluid Dynamics, Turbomachinery and Propulsion. The first year students have presented a poster on their research plans and some preliminary results, while the most advanced students have proposed a presentation followed by a session of questions.

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  7. Large eddy simulation: application to liquid metal fluid flow and heat transfer - BARTOSIEWICZ, Y. & DUPONCHEEL, M.

    Large eddy simulation: application to liquid metal fluid flow and heat transfer - BARTOSIEWICZ, Y. & DUPONCHEEL, M.

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    Large eddy simulation: application to liquid metal fluid flow and heat transfer - BARTOSIEWICZ, Y. & DUPONCHEEL, M. – Université catholique de Louvain, Belgium - https://doi.org/10.35294/ls201702.bartosiewicz

    in Thermohydraulics and Chemistry of Liquid Metal Cooled Reactors, Edited by F. Roelofs & Ph. Planquart, VKI LS 2017-02, ISBN-13 978-2-87516-114-7, https://doi.org/10.35294/ls201702

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    Introduction to optimization and multidisciplinary design in aeronautics and turbomachinery article pay-per-view 25€/article

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    Innovative optimization and design techniques for modern aircraft (manned or UAV/UCAV) and engine systems aiming at maximum performance in a multidisciplinary context (aerodynamic efficiency, safety, drag, losses, weight, strength, heat fluxes, emission, noise, …), are now rapidly moving from research labs to industrial real and virtual platforms. To reach concurrently this level of excellence, emergent optimization methodologies require more and more robust and efficient associated software for a daily use in industrial collaborative design environments.

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    Combustion in aero engines article pay-per-view 25€/article

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    High pressure two-phase air-kerosene reacting flow, with high levels of turbulence and heat transfer submitted to acoustic waves: this is how the flow in an aero engine combustor could be characterized

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    High-performance computing of industrial flows article pay-per-view 25€/article

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    The objective of these proceedings is to provide a state of the art of High Performance Computing strategy applied in Computational Fluid Dynamics.

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