Author: Junho Yang
Publisher:
ISBN:
Category :
Languages : en
Pages : 284
Book Description
Study of Dynamic Stall Phenomenon and Its Control Using Vorticity, Stream Function and Circulation Form of the Unsteady Navier-Stokes Equations
Author: Junho Yang
Publisher:
ISBN:
Category :
Languages : en
Pages : 284
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 284
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 836
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 836
Book Description
Simulation, Characteriation and Control of Forced Unsteady Viscous Flows Using Navier-Stokes Equations
Author: Kirti N. Ghia
Publisher:
ISBN:
Category : Navier-Stokes equations
Languages : en
Pages : 140
Book Description
Publisher:
ISBN:
Category : Navier-Stokes equations
Languages : en
Pages : 140
Book Description
Experimental Heat Transfer, Fluid Mechanics and Thermodynamics 1993
Author: M.D. Kelleher
Publisher: Elsevier
ISBN: 044459860X
Category : Technology & Engineering
Languages : en
Pages : 1002
Book Description
The papers contained in this volume reflect the ingenuity and originality of experimental work in the areas of fluid mechanics, heat transfer and thermodynamics. The contributors are drawn from 27 countries which indicates how well the worldwide scientific community is networked. The papers cover a broad spectrum from the experimental investigation of complex fundamental physical phenomena to the study of practical devices and applications. A uniform outline and method of presentation has been used for each paper.
Publisher: Elsevier
ISBN: 044459860X
Category : Technology & Engineering
Languages : en
Pages : 1002
Book Description
The papers contained in this volume reflect the ingenuity and originality of experimental work in the areas of fluid mechanics, heat transfer and thermodynamics. The contributors are drawn from 27 countries which indicates how well the worldwide scientific community is networked. The papers cover a broad spectrum from the experimental investigation of complex fundamental physical phenomena to the study of practical devices and applications. A uniform outline and method of presentation has been used for each paper.
Vorticity Dynamics and Control of Dynamic Stall
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 129
Book Description
The goal of the research was to understand key issues of vorticity dynamics prior to, during, and after the initiation of dynamic stall. The first portion of this work examined the of indicial theory to the predIction of dynamic applicability stall. The research focused on extending the semi-analytical formalism of indicial theory to predict the vorticity fluxes and the vorticity accumulation at the leading edge during unsteady maneuver. In the second portion of this work, highly accurate two-dimensional solutions of the Navier-Stokes equations were used on a model problem to investigate the Reynolds number scaling of incipient flow separation between Re =50,000 and Re = 800,000. This portion of the work was motivated by the suggestion that the appearance of eruptive plumes of vorticity at high Reynolds number might be critical to the formation of the dynamic stall vortex. The results of the research appear to contradict the hypothesis that a form of Reynolds number bifurcation must take place at some intermediate laminar Reynolds number. Instead, sell- similar behavior was observed, at least up to the time of formation of the primary stall vortex.
Publisher:
ISBN:
Category :
Languages : en
Pages : 129
Book Description
The goal of the research was to understand key issues of vorticity dynamics prior to, during, and after the initiation of dynamic stall. The first portion of this work examined the of indicial theory to the predIction of dynamic applicability stall. The research focused on extending the semi-analytical formalism of indicial theory to predict the vorticity fluxes and the vorticity accumulation at the leading edge during unsteady maneuver. In the second portion of this work, highly accurate two-dimensional solutions of the Navier-Stokes equations were used on a model problem to investigate the Reynolds number scaling of incipient flow separation between Re =50,000 and Re = 800,000. This portion of the work was motivated by the suggestion that the appearance of eruptive plumes of vorticity at high Reynolds number might be critical to the formation of the dynamic stall vortex. The results of the research appear to contradict the hypothesis that a form of Reynolds number bifurcation must take place at some intermediate laminar Reynolds number. Instead, sell- similar behavior was observed, at least up to the time of formation of the primary stall vortex.
Development of LES Methodology for the Analysis of High-Reynolds Number 2-D and 3-D Dynamic Stall Phenomenon
Author: Kirti N. Ghia
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 88
Book Description
The major objective of the AASERT Grant was to improve the analysis tools as well as assure the level of accuracy and efficiency that can be realized in the study of physics of the dynamic stall and related unsteady phenomena, through the development of the LES/DNS methodology. One M.S. and three Ph. D students were supported partially on this grant. The work carried out consisted of study of external unsteady flow using vorticity stream function formulation, analysis of boundary layer receptivity and transition using DNS methodology with spectral technique and, finally, compressibility effects in maneuvering body flows. Significant accomplishment is made in Object Oriented Numerics and high performance computing.
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 88
Book Description
The major objective of the AASERT Grant was to improve the analysis tools as well as assure the level of accuracy and efficiency that can be realized in the study of physics of the dynamic stall and related unsteady phenomena, through the development of the LES/DNS methodology. One M.S. and three Ph. D students were supported partially on this grant. The work carried out consisted of study of external unsteady flow using vorticity stream function formulation, analysis of boundary layer receptivity and transition using DNS methodology with spectral technique and, finally, compressibility effects in maneuvering body flows. Significant accomplishment is made in Object Oriented Numerics and high performance computing.
Dissertation Abstracts International
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 816
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 816
Book Description
Sādhanā
Author:
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 690
Book Description
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 690
Book Description
The Phenomenon of Dynamic Stall
Author: W. J. McCroskey
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
Stall and its consequences are fundamentally important to the design and operation of flight vehicles. A certain degree of unsteadiness always accompanies the flow over an airfoil or other streamlined body at high angle of attack, but the stall of a lifting surface undergoing unsteady motion is even more complex than static stall. Dynamic stall remains a major unsolved problem with a variety of current applications in aeronautics, hydrodynamics, and wind engineering. This report summarizes the main physical features of the phenomenon and the attempts that have been made to predict it. The information presented is drawn mainly from recent review articles and investigations by the author and his colleagues. Since a large fraction of the existing knowledge has come from experimental research, the details of dynamic stall are discussed principally in physical terms.
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
Stall and its consequences are fundamentally important to the design and operation of flight vehicles. A certain degree of unsteadiness always accompanies the flow over an airfoil or other streamlined body at high angle of attack, but the stall of a lifting surface undergoing unsteady motion is even more complex than static stall. Dynamic stall remains a major unsolved problem with a variety of current applications in aeronautics, hydrodynamics, and wind engineering. This report summarizes the main physical features of the phenomenon and the attempts that have been made to predict it. The information presented is drawn mainly from recent review articles and investigations by the author and his colleagues. Since a large fraction of the existing knowledge has come from experimental research, the details of dynamic stall are discussed principally in physical terms.
Mathematical Reviews
Author:
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 1304
Book Description
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 1304
Book Description