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Lecture Series Monographs (VKI LS)

Lecture Series Monographs (VKI LS)

Lectures will be given by active specialists drawn from universities, research establishments and industries from all over the world. Extensive course notes are published as proceedings in the VKI Lecture Series Monographs. On regular basis, thematic volumes are published in the Selected Special Topics, assembling the best Lecture Series contributions over the previous years on a given subject.

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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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    Aero-Engine design: From state-of-the-art Turbofans article pay-per-view 25€/article

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    The first lectures notes focus on the preliminary design of state of the art turbofan engine for the propulsion of civil aircraft. Issues like thermodynamic cycle, mission analysis, and off design operation (operating line) are addressed. Practical examples are presented. Once this important phase is completed, the different design teams have the boundary conditions to start the design of each component.

    VKI LS 2008-03

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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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    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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    Aero-engine design: A state of the art article pay-per-view 25€/article

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    Aero-engine design: A state of the art article pay-per-view 25€/article Learn More
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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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    Advanced high-temperature instrumentation for gas turbine applications article pay-per-view 25€/article

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    In aero-engines as well as industrial gas turbines, the drive to higher efficiency is steadily raising the pressures and temperatures in the engines, and this further increases the challenge to instrumentation. Accurate measurements in the hot components of gas turbines (including combustion diagnostics) are recognized as a major need for the assessment of engine component health and performance. High temperature instrumentation is required not only during product development for the validation of new designs or component life prediction methods, but also in service for health monitoring and optimum engine control.

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Items 11 to 20 of 315 total

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