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    Plasma flow control: Fundamentals, modeling and applications 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 external 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.

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    Advances in aero-acoustics and Thermo-acoustics article pay-per-view 25€/article

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    The accurate modeling of the stability properties of energy transport and conversion processes, such as pipelines, gas turbines, industrial heaters or domestic heating systems, is facing aero-acoustical and thermo-acoustical issues hindering their economic sustainability. The aim of this EU sponsored course notes (Marie-Curie Research Training Network AETHER) is to present the state-of-the-art review in this multi-disciplinary engineering field of aero- and thermo-acoustical coupling in energy conversion processes, in a form accessible to both researchers and industrial engineers.

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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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    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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    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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    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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    Aerodynamic noise from wall-bounded flows article pay-per-view 25€/article

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    Flow control is a key issue for the improvement of the next generation of airplanes, cars and energy generation for a safe and clean environment.

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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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