DNS and the LES Closure of Reacting Turbulence in Hypersonic Flows PDF Download
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Author: María del Pino Martín Aguirre
Publisher:
ISBN:
Category :
Languages : en
Pages : 216
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Author: María del Pino Martín Aguirre
Publisher:
ISBN:
Category :
Languages : en
Pages : 216
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Author: Graham V. Candler
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 70
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Book Description
Direct numerical simulations of turbulent reacting flows were performed to study the interaction between chemical heat release and turbulent fluid motion. A portion of the energy released by exothermic reactions is placed in the compressible mode of turbulent kinetic energy, with very little energy disposed to the incompressible mode. This process results in a positive feedback mechanism, whereby temperature fluctuations are amplified by the chemical reactions. In the case of endothermic reactions, the feedback is negative, resulting in decreased turbulent motion. The results of the simulations were used to develop a model for temperature fluctuations under conditions typical of a hypersonic boundary layer. This model has been validated and is suitable for use in the large eddy simulation of hypersonic turbulent boundary layers.
Author: M. Pino Martin
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Author: Xiaolin Zhong
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 56
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
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Book Description
Author: Doyle Knight
Publisher: Springer Science & Business Media
ISBN: 940114513X
Category : Technology & Engineering
Languages : en
Pages : 516
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Book Description
This collection of papers presents a broad range of topics in DNS and LES, from new developments in LES modeling to DNS and LES for supersonic and hypersonic boundary layers. The book provides an extensive view of the state of the art in the field.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
The objectives of this research project are to develop CFD techniques and to conduct DNS studies of fundamental flow physics leading to boundary-layer instability and transition in hypersonic flows During the three-year period, we have conducted extensive DNS studies on the receptivity of a supersonic boundary layer over a blunt cone, and over both sharp and blunt leading edge; and on the receptivity of the Goertler vortices. DNS studies were also compared with Stetson's 1984 stability experiment on Mach 7.99 flow over a blunt cone. Our studies have led to new understanding of a number of hypersonic boundary layer receptivity mechanisms. Such understanding can lead to better tool for the prediction and control of high-speed boundary layer transition.
Author: Claudio Bruno
Publisher: Springer Nature
ISBN: 9811979278
Category : Technology & Engineering
Languages : en
Pages : 314
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Book Description
This book details science of hypersonics especially focusing on propulsion aspects such as supersonic combustion ramjets and their applications, and also includes lift and drag in hypersonic flight and their mathematical and physical explanation. It provides charts and data from hypersonic testing and measurements from actual vehicles and engines built in the past. Criteria to dimension hypersonic powered and unpowered vehicles (gliders) based on fundamental fluid dynamics and backed by flight testing; criteria to preliminary sizing vehicles and preliminary dimensioning of supersonic combustors are introduced. The book will serve better theoretical understanding of drag, lift and how to apply them to the design of hypersonic vehicles, as well as data to size vehicles and supersonic combustion ramjet (SCRJ) systems. This book will be a useful reference for researchers and designers in hypersonic vehicles but also second or third-year graduate students.
Author: Rob J. M. Bastiaans
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
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