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Turbulence Modeling For Hypersonic Flight
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722919047 Total Pages :34 pages Book Rating :4.9/5 (19 download)
Book Synopsis Turbulence Modeling for Hypersonic Flight by : National Aeronautics and Space Administration (NASA)
Download or read book Turbulence Modeling for Hypersonic Flight written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-15 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the proposed work is to continue to develop, verify, and incorporate the baseline two-equation turbulence models, which account for the effects of compressibility at high speeds, into a three-dimensional Reynolds averaged Navier-Stokes (RANS) code. Additionally, we plan to provide documented descriptions of the models and their numerical procedures so that they can be implemented into the NASP CFD codes. Bardina, Jorge E. Unspecified Center NCC2-585...
Book Synopsis Turbulence Modeling for Hypersonic Flight by : Jorge E. Bardina
Download or read book Turbulence Modeling for Hypersonic Flight written by Jorge E. Bardina and published by . This book was released on 1993 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Hypersonics written by Bertin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: These three volumes entitled Advances in Hypersonics contain the Proceedings of the Second and Third Joint US/Europe Short Course in Hypersonics which took place in Colorado Springs and Aachen. The Second Course was organized at the US Air Force Academy, USA in January 1989 and the Third Course at Aachen, Germany in October 1990. The main idea of these Courses was to present to chemists, com puter scientists, engineers, experimentalists, mathematicians, and physicists state of the art lectures in scientific and technical dis ciplines including mathematical modeling, computational methods, and experimental measurements necessary to define the aerothermo dynamic environments for space vehicles such as the US Orbiter or the European Hermes flying at hypersonic speeds. The subjects can be grouped into the following areas: Phys ical environments, configuration requirements, propulsion systems (including airbreathing systems), experimental methods for external and internal flow, theoretical and numerical methods. Since hyper sonic flight requires highly integrated systems, the Short Courses not only aimed to give in-depth analysis of hypersonic research and technology but also tried to broaden the view of attendees to give them the ability to understand the complex problem of hypersonic flight. Most of the participants in the Short Courses prepared a docu ment based on their presentation for reproduction in the three vol umes. Some authors spent considerable time and energy going well beyond their oral presentation to provide a quality assessment of the state of the art in their area of expertise as of 1989 and 1991.
Book Synopsis Turbulence Modeling for Hypersonic Flows by : Joseph G. Marvin
Download or read book Turbulence Modeling for Hypersonic Flows written by Joseph G. Marvin and published by . This book was released on 1989 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722919115 Total Pages :50 pages Book Rating :4.9/5 (191 download)
Book Synopsis Turbulence Modeling for Hypersonic Flows by : National Aeronautics and Space Administration (NASA)
Download or read book Turbulence Modeling for Hypersonic Flows written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-15 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulence modeling for high speed compressible flows is described and discussed. Starting with the compressible Navier-Stokes equations, methods of statistical averaging are described by means of which the Reynolds-averaged Navier-Stokes equations are developed. Unknown averages in these equations are approximated using various closure concepts. Zero-, one-, and two-equation eddy viscosity models, algebraic stress models and Reynolds stress transport models are discussed. Computations of supersonic and hypersonic flows obtained using several of the models are discussed and compared with experimental results. Specific examples include attached boundary layer flows, shock wave boundary layer interactions and compressible shear layers. From these examples, conclusions regarding the status of modeling and recommendations for future studies are discussed. Marvin, J. G. and Coakley, T. J. Ames Research Center RTOP 505-60-11...
Book Synopsis Turbulence Modeling for Complex Hypersonic Flows by : P. G. Huang
Download or read book Turbulence Modeling for Complex Hypersonic Flows written by P. G. Huang and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulence Compressibility Corrections by :
Download or read book Turbulence Compressibility Corrections written by and published by . This book was released on 1994 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulence Modeling in Hypersonic Inlets by : Kumud Ajmani
Download or read book Turbulence Modeling in Hypersonic Inlets written by Kumud Ajmani and published by . This book was released on 1987 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Hypersonic Aerodynamics and the Computational Needs for the Design of an Aerospace Plane by : Shiao-kung Liu
Download or read book Numerical Simulation of Hypersonic Aerodynamics and the Computational Needs for the Design of an Aerospace Plane written by Shiao-kung Liu and published by . This book was released on 1992 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Two-equation Turbulence Modeling for 3-D Hypersonic Flows by : J. E. Bardina
Download or read book Two-equation Turbulence Modeling for 3-D Hypersonic Flows written by J. E. Bardina and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Ernst Heinrich Hirschel Publisher :Springer Science & Business Media ISBN 13 :3540265198 Total Pages :419 pages Book Rating :4.5/5 (42 download)
Book Synopsis Basics of Aerothermodynamics by : Ernst Heinrich Hirschel
Download or read book Basics of Aerothermodynamics written by Ernst Heinrich Hirschel and published by Springer Science & Business Media. This book was released on 2006-01-16 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last two decades have brought two important developments for aeroth- modynamics. One is that airbreathing hypersonic flight became the topic of technology programmes and extended system studies. The other is the emergence and maturing of the discrete numerical methods of aerodyn- ics/aerothermodynamics complementary to the ground-simulation facilities, with the parallel enormous growth of computer power. Airbreathing hypersonic flight vehicles are, in contrast to aeroassisted re-entry vehicles, drag sensitive. They have, further, highly integrated lift and propulsion systems. This means that viscous eflFects, like boundary-layer development, laminar-turbulent transition, to a certain degree also strong interaction phenomena, are much more important for such vehicles than for re-entry vehicles. This holds also for the thermal state of the surface and thermal surface effects, concerning viscous and thermo-chemical phenomena (more important for re-entry vehicles) at and near the wall. The discrete numerical methods of aerodynamics/aerothermodynamics permit now - what was twenty years ago not imaginable - the simulation of high speed flows past real flight vehicle configurations with thermo-chemical and viscous effects, the description of the latter being still handicapped by in sufficient flow-physics models. The benefits of numerical simulation for flight vehicle design are enormous: much improved aerodynamic shape definition and optimization, provision of accurate and reliable aerodynamic data, and highly accurate determination of thermal and mechanical loads. Truly mul- disciplinary design and optimization methods regarding the layout of thermal protection systems, all kinds of aero-servoelasticity problems of the airframe, et cetera, begin now to emerge.
Book Synopsis Status of turbulence modeling for hypersonic propulsion flowpaths by :
Download or read book Status of turbulence modeling for hypersonic propulsion flowpaths written by and published by . This book was released on 2012 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of One- and Two-equation Turbulence Models for Hypersonic Transitional Flows by : Christopher J. Roy
Download or read book Assessment of One- and Two-equation Turbulence Models for Hypersonic Transitional Flows written by Christopher J. Roy and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Flow Research on Unstructured Grids by :
Download or read book Hypersonic Flow Research on Unstructured Grids written by and published by . This book was released on 1994 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main accomplishments under this effort include development of numerical algorithms for solving the Navier Stokes equations with higher order spatial discretizations, a generalized thermo-chemical model, and a one equation turbulence model on unstructured meshes. This report focuses attention on the implementation of the thermo-chemical modeling, viscous fluxes, turbulence modeling, and higher order spatial discretizations. Solutions are presented for an equilibrium air nozzle, RAM 11-C reentry probe, Aeroassist Flight Experiment, an analytic forebody, and the turbulent flow over a flat plate. (AN).
Book Synopsis Hypersonic Maneuvering Vehicle Simulations Using Real-aas, Unstructured Navier-Stokes Software by : William D. McGrory
Download or read book Hypersonic Maneuvering Vehicle Simulations Using Real-aas, Unstructured Navier-Stokes Software written by William D. McGrory and published by . This book was released on 2001 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypersonic vehicles are becoming more of a reality with the current level of technology. Concept vehicles are now being made in order to test the most recent advances in hypersonic technology. Along with models for flight testing, CFD has become an important role in the development of modern hypersonic vehicles. The technology in CFD is making more complex configurations and flow-fields available for simulation. One of the advances in CFD that is making this possible is unstructured grid generation and flow solvers.
Book Synopsis Three-dimensional Shock-boundary Layer Interactions in Simulations of HIFiRE-1 and HIFiRE-2 by : Robert J. Yentsch
Download or read book Three-dimensional Shock-boundary Layer Interactions in Simulations of HIFiRE-1 and HIFiRE-2 written by Robert J. Yentsch and published by . This book was released on 2013 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A series of high-fidelity, three-dimensional simulations has been performed to investigate hypersonic phenomena encountered in the HIFiRE Flight 1 and Flight 2 experiments. The investigation of HIFiRE-1highlights the performance of turbulence modeling in realistic hypersonic flight vehicles subject to laminar-to-turbulent boundary layer transition and geometry induced adverse pressure gradient separated shock boundary layer interactions (corner flows) influenced by three-dimensional effects. Comparisons with flight test data indicate that the performance of the turbulence model is dependent on the flow condition and the variable under examination. The surface pressure trends are reproduced in all cases, and predictions for the axial separation location is generally within 20% of the separated region length. For the lower Mach number cases, the surface pressure is predicted better at the lower Reynolds number case. Heat transfer predictions on the cone are good, although the use of empirically specified laminar-to-turbulent transition is necessary. The best comparison in heat transfer rates at the flare are observed at the highest Mach number. Overall, the results suggest that the K-ω turbulence model used in this study can be used for flight test prediction, though such uses must be done with care.
Book Synopsis Engineering Turbulence Modelling and Experiments - 3 by : G. Bergeles
Download or read book Engineering Turbulence Modelling and Experiments - 3 written by G. Bergeles and published by Newnes. This book was released on 2012-12-02 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents and discussses new developments in the area of turbulence modelling and measurements, with particular emphasis on engineering-related problems. At present, turbulence is one of the key issues in tackling engineering flow problems. Powerful computers and numerical methods are now available for solving the flow equations, but the simulation of turbulence effects which are nearly always important in practice, is still in an unsatisfactory state and introduces considerable uncertainities in the accuracy of CFD calculations. These and other aspects of turbulence modelling and measurements are dealt with in detail by experts in the field. The resulting book is an up-to-date review of the most recent research in this exciting area.
