Download or read book Use of Strained Coordinate Perturbation Method in Transonic Aeroelastic Computations written by P. Guruswamy and published by . This book was released on 1980 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of the strained coordinate perturbation method in transonic aeroelastic computations is investigated. The main objective is to reduce the computational time required for transonic aeroelastic calculations. Based on the strained coordinate perturbation equations, a procedure is presented to generate steady state initial conditions for LTRAN2 transonic code. Influence of such initial conditions on unsteady computations is studied. Results are illustrated for Mach number, angle of attack and thickness variations. The computer time required by the present procedure and the direct LTRAN2 computations are compared. There is a considerable saving in the computer time by present procedure. The application of the strained coordinate perturbation method in computing transonic divergence speeds of a slender straight wing is presented. Results are obtained for a 10% thick parabolic arc at varying Mach number. Transonic divergence speeds obtained by present method are compared with those given by subsonic theory. A computer program for creating the steady state initial conditions based on the strained coordinate perturbation method is presented. This program is compatible with LTRAN2. (Author).
Download or read book Use of Strained Coordinate Perturbation Method in Transonic Aeroelestic Computations written by P. Guruswamy and published by . This book was released on 1980 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of the strained coordinate perturbation method in transonic aeroelastic computations is investigated. The main objective is to reduce the computational time required for transonic aeroelastic calculations. Based on the strained coordinate perturbation equations, a procedure is presented to generate steady state initial conditions for LTRAN2 transonic code. Influence of such initial conditions on unsteady computations is studied. Results are illustrated for Mach number, angle of attack and thickness variations. The computer time required by the present procedure and the direct LTRAN2 computations are compared. There is a considerable saving in the computer time by present procedure. The application of the strained coordinate perturbation method in computing transonic divergence speeds of a slender straight wing is presented. Results are obtained for a 10% thick parabolic arc at varying Mach number. Transonic divergence speeds obtained by present method are compared with those given by subsonic theory. A computer program for creating the steady state initial conditions based on the strained coordinate perturbation method is presented. This program is compatible with LTRAN2. (Author)
Download or read book Use of Strained Coordinate Perturbation Method in Transonic Aeroelestic Computations written by P. Guruswamy and published by . This book was released on 1981 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key parameters have been identified which permit correlation of vortex flow simulations in a water tunnel with wind tunnel and flight data. Vortex generation, vortex sheet and core location, and a vortex strength on thin slender wings are accurately represented in a water tunnel due to the insensitivity of separation point location to changes in Reynolds number. The fact that theoretical methods which ignore viscous effects can reasonably predict vortex flow aerodynamics is one indication of the Reynolds number insensitivity of these flow phenomena. For wings and bodies where separation point varies with Reynolds number, the fundamental vortex structure is similar regardless of Reynolds number value since vortices at a distance from the generating surfaces are embedded in essentially irrotational flow. External pressure gradient is an important parameter affecting vortex stability and, although there is yet no theoretical verification that this parameter is the dominant one, vortex burst at higher angles of attack for a given configuration occurs at comparable positions in water tunnels as in wind tunnels and flight. A water tunnel is a powerful diagnostic tool capable of providing high-quality flow visualization of complex fluid flows and insight into the phenomenological aspects of vortex generation, interactions between multiple vortices and aerodynamic surfaces and vortex burst.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1987 with total page 1178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Applied Mechanics written by and published by . This book was released on 1982 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publishes original research in all branches of mechanics including aerodynamics; aeroelasticity; boundary layers; computational mechanics; constitutive modeling of materials; dynamics; elasticity; flow and fracture; heat transfer; hydraulics; impact; internal flow; mechanical properties of materials; micromechanics; plasticity; stress analysis; structures; thermodynamics; turbulence; vibration; and wave propagation.
Download or read book Current Status of Computational Methods for Transonic Unsteady Aerodynamics and Aeroelastic Applications written by and published by . This book was released on 1992 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Computational Aeroelasticity written by Min Xu and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-12-07 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a state-of-art overview of computational methods for nonlinear aeroelasticity and load analysis, focusing on key techniques and fundamental principles for CFD/CSD coupling in temporal domain. CFD/CSD coupling software design and applications of CFD/CSD coupling techniques are discussed in detail as well. It is an essential reference for researchers and students in mechanics and applied mathematics.
Download or read book Transonic Aeroelastic Calculations in Both the Time and Frequency Domains written by M. J. Knott and published by . This book was released on 1992 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method for exploring the flutter characteristics of wing-only configurations in the transonic flow regime is presented. At the heart of the method is the UTSP program, which solves the non-linear transonic small perturbation equation with or without the simultaneous integration of the structural equations of motion.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1981 with total page 1316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Download or read book Application of Unsteady Aerodynamic Methods for Transonic Aeroelastic Analysis written by and published by . This book was released on 1988 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unsteady Transonic Aerodynamics written by David Nixon and published by . This book was released on 1989 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume complements Transonic aerodynamics (v.81 in the series) which is concerned with steady flow. This is the only book to address the subject of unsteady transonic aerodynamics, a field much different from steady aerodynamics. The most pronounced difference is the complex shock wave motions
Download or read book 26th AIAA Fluid Dynamics Conference written by and published by . This book was released on 1995 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Nonlinear Aeroelasticity written by Grigorios Dimitriadis and published by John Wiley & Sons. This book was released on 2017-03-10 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Nonlinear Aeroelasticity Introduces the latest developments and technologies in the area of nonlinear aeroelasticity Nonlinear aeroelasticity has become an increasingly popular research area in recent years. There have been many driving forces behind this development, increasingly flexible structures, nonlinear control laws, materials with nonlinear characteristics and so on. Introduction to Nonlinear Aeroelasticity covers the theoretical basics in nonlinear aeroelasticity and applies the theory to practical problems. As nonlinear aeroelasticity is a combined topic, necessitating expertise from different areas, the book introduces methodologies from a variety of disciplines such as nonlinear dynamics, bifurcation analysis, unsteady aerodynamics, non-smooth systems and others. The emphasis throughout is on the practical application of the theories and methods, so as to enable the reader to apply their newly acquired knowledge Key features: Covers the major topics in nonlinear aeroelasticity, from the galloping of cables to supersonic panel flutter Discusses nonlinear dynamics, bifurcation analysis, numerical continuation, unsteady aerodynamics and non-smooth systems Considers the practical application of the theories and methods Covers nonlinear dynamics, bifurcation analysis and numerical methods Accompanied by a website hosting Matlab code Introduction to Nonlinear Aeroelasticity is a comprehensive reference for researchers and workers in industry and is also a useful introduction to the subject for graduate and undergraduate students across engineering disciplines.
Download or read book The Shock and Vibration Digest written by and published by . This book was released on 1982 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1988 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
