Author: Sarkis Hendrik BosPublisher:
ISBN:
Category :
Languages : en
Pages : 139
Book Description
Numerical Methods to Solve Viscous-inviscid Interaction Problems
Author: Sarkis Hendrik BosNumerical Study of Three Viscous/Inviscid Interaction Methods
Author: Jeffrey C. TrompPublisher:
ISBN:
Category :
Languages : en
Pages : 120
Book Description
The study of flows with viscous/inviscid interaction has attracted many researchers over the last decade. These flows occur whenever the adverse gradient is large enough to cause flow separation. The current emphasis is to find efficient ways of solving these types of flows without solving the full Navier-Stokes equations. Three methods for solving the viscous/inviscid problem were studied. The first method uses finite difference equations to model both the viscous and inviscid regions. A coupling scheme is developed to match the two solutions. The second method solves the integral boundary layer equations in the viscous region and finite difference equations in the inviscid region. The third method solves the Hilbert integral to generate a correction to the inviscid velocity using the boundary layer equations as the viscous model. The model problem used in this work is Howarth flow over a flat plate. The three methods were evaluated in terms of solution accuracy, memory requirements, and computation times. Theses. (mjm).
Computational Methods in Viscous Flows
Author: W. G. HabashiPublisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 688
Book Description
Theoretical and Numerical Analysis of Viscous-inviscid Interaction
Author: Ramesh YapalparviNumerical Analysis of 3D Viscous-inviscid Interaction and Boundary Layer Separation
Author: S. BosPublisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 31
Book Description
Computation of Transonic Viscous-Inviscid Interacting Flow
Author: D. L. WhitfieldPublisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
Transonic viscous-inviscid interaction is considered using the Euler and inverse compressible turbulent boundary-layer equations. Certain improvements in the inverse boundary-layer method are mentioned, along with experiences in using various Runge-Kutta schemes to solve the Euler equations. Numerical conditions imposed on the Euler equations at a surface for viscous-inviscid interaction using the method of equivalent sources are developed, and numerical solutions are presented and compared with experimental data to illustrate essential points. (Author).
Viscous-inviscid Matching for Wave-body Interaction Problems
Author: John Andrew HamiltonPublisher:
ISBN:
Category :
Languages : en
Pages : 286
Book Description
Viscous-inviscid Interaction with Higher-order Viscous-flow Equations
Author: Frederick Stern (Professor of engineering)Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 160
Book Description
Numerical and Physical Aspects of Aerodynamic Flows II
Author: T. CebeciPublisher: Springer Science & Business Media
ISBN: 3662090147
Category : Science
Languages : en
Pages : 412
Book Description
The Second Symposium on Numerical and Physical Aspects of Aerodynamic Flows was held at California State University, Long Beach, from 17 to 20 January 1983. Forty-eight papers were presented, including Keynote Lec tures by A. M. 0. Smith and J. N. Nielsen, in ten technical sessions which were supplemented and complemented by two Open Forum Sessions, involving a further sixteen technical presentations and a Panel Discussion on the "Identification of priorities for the development of calculation methods for aerodynamic bodies. " The Symposium was attended by 120 research workers from nine countries and, as in the First Symposium, provided a basis for research workers to communicate, to assess the present status of the subject and to formulate priorities for the future. In contrast to the First Symposium, the papers and discussion were focused more clearly on the subject of flows involving the interaction between viscous and inviscid regions and the calculation of pressure, velocity and temperature characteristics as a function of geometry, angle of attack and Mach number. Rather more than half the papers were concerned with two-dimensional configurations and the remainder with wings, missiles and ships. This volume presents a selection of the papers concerned with two dimensional flows and a review article specially prepared to provide essen tial background information and link the topics of the individual papers.
Viscous-inviscid Interaction with Higher-order Viscous-flow Equations
Author: Sungyul YooPublisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 0
Book Description
A viscous inviscid interaction method for three dimensional flows, in which the partially parabolic Reynolds equations are coupled with an inviscid flow solution procedure in an interactive and iterative manner, is applied to two simple three dimensional bodies for which experimental data are available for comparison. The relative merits of interactive and global solution procedures are evaluation by comparing the viscous inviscid interaction solutions with noninteractive large domain solutions of only the viscous flow equations. Both methods yield satisfactory results, although the interaction solutions are found to be computationally more efficient for the cases considered. Keywords: Thick Three Dimensional Layer; Viscous Inviscid Interaction; Partially parabolic Equations; Computational Fluid Dynamics.