Download or read book Transonic Potential Flow Computations by Finite Elements written by and published by . This book was released on 1978 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Fast Finite Element Method for Transonic Potential Flow Calculations written by Marc Brédif and published by . This book was released on 1983 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Boundary Value Problems for Transonic Flow written by Alexander G Kuz'min and published by John Wiley & Sons. This book was released on 2003-02-28 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transonic flow occurs around moving objects as they approach and cross the sound barrier. Serious problems can occur at this point, such as shock-induced flow separation which can cause the aircraft to spin out of control. Another important practical problem is the achievement of higher aerodynamic performance of aircraft at cruise conditions, which leads to considerable fuel savings. The success in application of numerical methods for simulation of transonic flow and aircraft design depends on developments in the underlying mathematical theory. This book presents a breakthrough in the solvability analysis of boundary value problems, which makes it possible to establish convergence of finite element approximations for shock-free flow and to provide a framework for putting the existing numerical methods on a more sound basis. Also, physical aspects concerned with patterns of formation and propagation of weak shock waves are analysed. This contributes to the understanding of the extreme sensitivity of transonic flow to perturbation of freestream conditions. The developed theoretical knowledge base yields promising concepts of the airfoil design and active flow control by airfoil/wing shape modifications or suction/blowing through a perforated surface. Boundary Value Problems for Transonic Flow * Focuses on Computational Fluid Dynamics. * Addresses practical problems, such as airfoil design and flow control. * Presents developments made in the last two decades. In essence this is a much needed monograph for researchers and engineers in applied mathematics and numerical analysis applied to aerodynamics and for algorithm developers in Computational Fluid Dynamics in the aircraft industry. It gives design engineers the underlying mathematical theory necessary for developing new concepts for airfoil/wing design and flow control.

Download or read book Numerical Computation of Transonic Flows by Finite element and Finite difference Methods written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Office and published by . This book was released on 1978 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Finite Element Analysis of Transonic Flow written by S. T. K. Chan and published by . This book was released on 1974 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The finite element technique is applied to steady incompressible, subsonic and transonic flow with the end objective being the analysis of unsteady transonic flow. A triangular cubic element is used and the Galerkin method of weighted residuals is adapted to control the error. The formulation is based on the small disturbance but nonlinear transonic equation for inviscid compressible flow. Full potential formulations with small disturbance assumptions are also investigated. The governing equations are cast into the Poisson type for which finite element analogs are constructed, and the solution is then obtained by iterative procedures. Boundary conditions involving the normal derivative of the unknown functions are conveniently cast into boundary integrals and added to the right-hand side of the equations. In the case where more than two unknown parameters are related, such as those along the branch cut, Lagrangian multipliers are used to introduce these constraints and a special equation solver is developed for these computations. Techniques are developed for analyzing lifting flow under free flight conditions with general provisions for surface tangency, wake and far field boundary conditions. This generality allows for computation of combinations of internal axd external flow (as an airfoil in a wind tunnel), as well as free flight, about arbitrary geometry. Unsteady transonic flow calculations are also presented for a NACA 64 A006 with an oscillating 25% chord control surface.

Download or read book Numerical Methods for the Computation of Inviscid Transonic Flows with Shock Waves written by Arthur Rizzi and published by Springer-Verlag. This book was released on 2013-08-13 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Finite Element Analysis of Transonic Flows in Cascades written by Akin Ecer and published by . This book was released on 1981 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Numerical Computation of Transonic Flows by Finite element and Finite diffence Methods written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Office and published by . This book was released on 1978 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Computational Transonics written by W. G. Habashi and published by . This book was released on 1985 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Finite Element Methods for Fluids written by Olivier Pironneau and published by . This book was released on 1989 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces the formulation of problems in fuild mechanics and dynamics, and shows how they can be analyzed and resolved using finite element methods. This practical book also discusses the equations of fluid mechanics and investigates the problems to which these equations can be applied, as well as how they can be analyzed and solved. Contains illustrations of computer simulations using the methods described in the book and features numerous illustrations.

Download or read book Transonic Flow Computations in Cascades Using Finite Element Method written by H. U. Akay and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computational Methods for Turbulent Transonic and Viscous Flows written by J.-A. Essers and published by Springer. This book was released on 1983 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Finite Elements in Fluids written by Richard H. Gallagher and published by . This book was released on 1978 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Three Dimensional Transonic Potential Flows Using Optimum Grid written by A. Ecer and published by . This book was released on 1982 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: A three-dimensional finite element procedure is developed for the analysis of three-dimensional transonic flows and applied to the analysis of wing-body combinations. A finite element grid generation scheme for three-dimensional bodies with complex geometries is presented. The design of efficient, body-fitted computational grids with isoparametric mappings, as well as the application of higher-order finite elements in analyzing transonic potential flows are investigated. Two different computational grids were designed and studied with a numerical scheme based on the density upwinding in the supersonic regions. A pseudo-unsteady type formulation is employed in determining a steady-state solution. It is concluded that the grid generation scheme is quite flexible and efficient for generating solution adaptive grids and providing local refinements in the sensitive flow regions. Also, it is shown that the employed numerical scheme with higher-order elements at flow regions of high gradients produced results which compare favorable with experimental data. (Author).

Download or read book Finite Element Analysis of Non Newtonian Flow written by Hou-Cheng Huang and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: A follow on from the author's work "Finite Elements in Heat Transfer" which we published 11/94, and which is a powerful CFD programme that will run on a PC. The fluid flow market is larger than the previous, and this package is good value in comparison with other software packages in Computational Fluid Dynamics, which are generally very expensive. The work in general copes with non-Newtonian laminar flow using the finite element method, and some basic theory of the subject is included in the opening chapters of the book.

Download or read book Transonic Symposium Theory Application and Experiment written by and published by . This book was released on 1989 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Finite Element Computational Fluid Mechanics written by A. J. Baker and published by Taylor & Francis US. This book was released on 1983-01-01 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at advanced level undergraduates, engineers and scientists, this text derives, develops and applies finite-element solution methodology directly to the differential equation systems governing distinct and practical problem classes in fluid