Numerical Simulation of Steady Supersonic Flow Over an Ogive Cylinder Boattail Body PDF Download
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Author: Lewis B. Schiff
Publisher:
ISBN:
Category :
Languages : en
Pages : 50
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Book Description
A recently reported Parabolized Navier-Stokes code has been employed to compute the supersonic flow field surrounding an ogive-cylinder-boattail body at incidence. The computations were performed for flow conditions where an extensive series of experimental surface pressure and turbulent boundary-layer profile measurements had been obtained. Comparison between the computational results and experimental measurements for angles of attack up to 6 deg. show excellent agreement. At angles greater than 6 deg. discrepancies are observed which are tentatively attributed to three-dimensional turbulence modeling errors. (Author).
Author: Lewis B. Schiff
Publisher:
ISBN:
Category :
Languages : en
Pages : 50
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Book Description
A recently reported Parabolized Navier-Stokes code has been employed to compute the supersonic flow field surrounding an ogive-cylinder-boattail body at incidence. The computations were performed for flow conditions where an extensive series of experimental surface pressure and turbulent boundary-layer profile measurements had been obtained. Comparison between the computational results and experimental measurements for angles of attack up to 6 deg. show excellent agreement. At angles greater than 6 deg. discrepancies are observed which are tentatively attributed to three-dimensional turbulence modeling errors. (Author).
Author:
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ISBN:
Category :
Languages : en
Pages : 48
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Author: Daniel L. McMaster
Publisher:
ISBN:
Category :
Languages : en
Pages : 50
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Book Description
Numerical simulations were performed for a supersonic jet issuing from a blunt-nosed ogive cylinder into a Mach 12 cross stream. All calculations employed the finite differenced, mass-averaged Navier Stokes equations with an algebraic eddy viscosity model for turbulence closure. One portion of the present investigation was focused on the numerical resolution requirement for the three-dimensional separated flow field around the non-rotating body. For this purpose, four solutions were obtained using mesh systems with different numbers of grid points and clustering. The secondary separated flow field structure was resolved with moderately increased grid density. The major portion of the present study was devoted to the simulation of the flow field around the identical configuration with the added complexity of rotating motion about the principal axis of the body. Numerical solutions over a wide range of angular velocities were obtained in the rotating frame of reference. The effects of rotation on the global flow field structure and especially the jet plume formation were examined through a comparative study from the viewpoint of a stationary observer. At the low angular velocity of interest, the effects of body rotation on the flow field structure were significant.
Author:
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ISBN:
Category : Turbulent boundary layer
Languages : en
Pages : 316
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Author: Lewis B. Schiff
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 48
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1282
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author:
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ISBN:
Category : Computers
Languages : en
Pages : 1272
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Author: Johns Hopkins University. Applied Physics Laboratory
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 372
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Book Description
Author: Richard H. Pletcher
Publisher: CRC Press
ISBN: 9781560320463
Category : Science
Languages : en
Pages : 828
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Book Description
This comprehensive text provides basic fundamentals of computational theory and computational methods. The book is divided into two parts. The first part covers material fundamental to the understanding and application of finite-difference methods. The second part illustrates the use of such methods in solving different types of complex problems encountered in fluid mechanics and heat transfer. The book is replete with worked examples and problems provided at the end of each chapter.
Author: R. Winterstein
Publisher:
ISBN:
Category :
Languages : en
Pages :
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