Author: Li-chüan ChuPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 278
Book Description
Integral Equation Solution of the Full Potential Equation for Three-dimensional, Steady, Transonic Wing Flows
Author: Li-chüan ChuPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 278
Book Description
Integral Equation Method in Transonic Flow
Author: Pradip NiyogiPublisher: Springer
ISBN:
Category : Mathematics
Languages : en
Pages : 212
Book Description
On the Kernel Function of the Integral Equation Relating the Lift and Downwash Distributions of Oscillating Finite Wings in Subsonic Flow
Author: Charles E. WatkinsPublisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 52
Book Description
The derivation of the integral equation which involves this kernel function, originally performed elsewhere (see, for example, NACA Technical Memorandum 979) is reproduced as an appendix. A second appendix gives the reduction of the form of the kernel function obtained herein for the three-dimensional case to a known result of Possio for two-dimensional flow.
Volterra's Solution of the Wave Equation as Applied to Three-dimensional Supersonic Airfoil Problems
Author: Max A. HeasletPublisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 86
Book Description
A surface integral is developed which yields solutions of the linearized partial differential equation for supersonic flow. These solutions satisfy boundary conditions arising in wing theory. Particular applications of this general method are made, using acceleration potentials, to flat surfaces and to uniformlyy loaded lifting surfaces. Rectangular and trapezoidal plan forms are considered along with triangular forms adaptable to swept-forward and swept-back wings. The case of the trangular plan form in sideslip is also included. Emphasis is placed on the systematic application of the method to the lifting surfaces considered and on the possibility of further application.
Scientific and Technical Aerospace Reports
Author: Boundary Element Methods in Engineering
Author: Balkrishna S. AnnigeriPublisher: Springer Science & Business Media
ISBN: 3642842380
Category : Technology & Engineering
Languages : en
Pages : 596
Book Description
The Boundary Element Method (BEM) has become established as an effective tool for the solutions of problems in engineering science. The salient features of the BEM have been well documented in the open literature and therefore will not be elaborated here. The BEM research has progressed rapidly, especially in the past decade and continues to evolve worldwide. This Symposium was organized to provide an international forum for presentation of current research in BEM for linear and nonlinear problems in solid and fluid mechanics and related areas. To this end, papers on the following topics were included: rotary wing aerodynamics, unsteady aerodynamics, design and optimization, elasticity, elasto dynamics and elastoplasticity, fracture mechanics, acoustics, diffusion and wave motion, thermal analysis, mathematical aspects and boundary/finite element coupled methods. A special session was devoted to parallel/vector supercomputing with emphasis on mas sive parallelism. This Symposium was sponsored by United Technologies Research Center (UTRC) , NASA Langley Research Center, and the International Association of Boundary Ele ment Methods (lAB EM) . We thank the UTRC management for their permission to host this Symposium. In particular, we thank Dr. Arthur S. Kesten and Mr. Robert E. Olson for their encouragement and support. We gratefully acknowledge the support of Dr. E. Carson Yates, Jr. of NASA Langley, Prof. Luigi Morino, Dr. Thomas A.
Boundary Elements XIII
Author: C.A. BrebbiaPublisher: Springer Science & Business Media
ISBN: 9401136963
Category : Technology & Engineering
Languages : en
Pages : 1005
Book Description
Since its origin in 1978, the International Conference on Boundary Element Methods has provided the recognized and established forum for innovations in boundary element research. Practically all new ideas on boundary ele ments have been presented at these conferences and the resulting papers can be found in the published books. The conference brings together the most renowned scientists and engineers working on boundary element research throughout the world. A unique feature of these meetings is that the participation of younger researchers is actively encouraged by the organizers in an effort to .bring forward to the attention of the international community an ever expanding range of new ideas. This book contains the edited version of the papers presented at the XIIIth BEM Conference held in Tulsa, Oklahoma in August of 1991. The meeting attracted a large number of participants and many excellent contributions which have been divided into nineteen different sections, i.e. Potential Prob lems; Diffusion and Convection Problems; Fluid Mechanics; Fluid Flow; Wave Propagation; Groundwater Flow; Heat Transfer; Electrical Problems; Geomechanics; Plates and Shells; Inelastic Problems; Damage Tolerance; Contact Mechanics; Industrial Applications; Design Sensitivity and Opti mization; Inverse Problems; Special Techniques; Numerical Aspects and Computational Aspects.
Boundary Elements in Fluid Dynamics
Author: C.A. BrebbiaPublisher: Springer Science & Business Media
ISBN: 9401128766
Category : Science
Languages : en
Pages : 264
Book Description
This book Boundary Elements in Fluid Dynamics is the second volume of the two volume proceedings of the International Conference on Computer Modelling of Seas and Coastal Regions and Boundary Elements and Fluid Dynamics, held in Southampton, U.K., in April 1992. The Boundary Element Method (BEM) is now fully established as an ac curate and successful technique for solving engineering problems in a wide range of fields. The success of the method is due to its advantages in data reduction, as only the boundary of the region is modelled. Thus moving boundaries may be more easily handled, which is not the case if domain methods are used. In addition, the method is easily able to model regions to extending to infinity. Fluid mechanics is traditionally one of the most challenging areas of engi neering, the simulation of fluid motion, particularly in three dimensions, is always a serious test for any numerical method, and is an area in which BEM analysis may be used taking full advantage of its special characteris tics. The conference includes sections on turbomachinery, aerodynamics, viscous flow and turbulence models, and special flow situations. The organisers would like to thank the International Scientific Advisory Committee, the conference delegates and all of those who have actively supported the meet ing.
Integral Equation Formulation for Three-dimensional Unsteady Transonic Flow
Author: John Anthony GearPublisher:
ISBN: 9780642111173
Category : Aerodynamics, Transonic
Languages : en
Pages : 10
Book Description
The unsteady transonic small perturbation differential equation is converted into an integrodifferential equation by application of the classical Green's function method. It is shown that no contribution form sock waves explicitly appears in this integral equation, due to the shock capturing properties of the Green's function method. After assuming that the motion consists of small infinitesimal perturbations around a thin nearly-planar body, a simplified integral equation for the streamwise velocity component is obtained, which is suitable for fast numerical computations. Keywords: Unsteady flow; Transonic flow; Three-dimensional flow. (Australia).
Author: Li-Chuan Chu