EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Unsteady Transonic Aerodynamic and Aeroelastic Calculations about Airfoils and Wings

Download or read book Unsteady Transonic Aerodynamic and Aeroelastic Calculations about Airfoils and Wings written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development and application of transonic small disturbance codes for computing two dimensional flows, using the code ATRAN2, and for computing three dimensional flows, using the code ATRAN3S, are described. Calculated and experimental results are compared for unsteady flows about airfoils and wings, including several of the cases from the AGARD Standard Aeroelastic Configurations. In two dimensions, the results include AGARD priority cases for the NACA 64A006, NACA 64A010, NACA 0012, and MBB-A3 airfoils. In three dimensions, the results include flows about the F-5 wing, a typical wing, and the AGARD rectangular wings. Viscous corrections are included in some calculations, including those for the AGARD rectangular wing. For several cases, the aerodynamic and aeroelastic calculations are compared with experimental results. Goorjian, P. M. and Guruswamy, G. P. Ames Research Center NASA-TM-85986, A-9822, NAS 1.15:85986 RTOP 505-31-01...

Book Calculation of Unsteady Transonic Aerodynamics for Oscillating Wings with Thickness

Download or read book Calculation of Unsteady Transonic Aerodynamics for Oscillating Wings with Thickness written by S. Y. Ruo and published by . This book was released on 1975 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analytical approach is presented to account for some of the nonlinear characteristics of the transonic flow equation for finite thickness wings undergoing harmonic oscillation at sonic flight speed in an inviscid, shock-free fluid. The thickness effect is accounted for in the analysis through use of the steady local Mach number distribution over the wing at its mean position by employing the local linearization concept and a coordinate transformation. Computed results are compared with that of the linearized theory and experiments. Based on the local linearization concept, an alternate formulation avoiding the limitations of the coordinate transformation method is presented.

Book Transonic Unsteady Aerodynamics and Aeroelasticity 1987 Part 1

Download or read book Transonic Unsteady Aerodynamics and Aeroelasticity 1987 Part 1 written by and published by . This book was released on 1989 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Application of Unsteady Aerodynamic Methods for Transonic Aeroelastic Analysis

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:

Book Fundamentals of Modern Unsteady Aerodynamics

Download or read book Fundamentals of Modern Unsteady Aerodynamics written by Ülgen Gülçat and published by Springer Nature. This book was released on 2021-01-04 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the concept of unsteady aerodynamics and its underlying principles. The author provides the readers with a comprehensive review of the fundamental physics of free and forced unsteadiness, the terminology and basic equations of aerodynamics ranging from incompressible flow to hypersonics. The book also covers modern topics related to the developments made in recent years, especially in relation to wing flapping for propulsion. The book is written for graduate and senior year undergraduate students in aerodynamics and also serves as a reference for experienced researchers. Each chapter includes ample examples, questions, problems and relevant references. This 3rd edition includes a new chapter about unsteady applications related to the thrust optimization, aerodynamic stability and trim because there has been much progress in unsteady applications of the flapping wing technology. In addition, further material is presented in Appendix for evaluating the stability derivatives so that no derivation of equations is left incomplete but not overdone in the text.

Book Transonic Aerodynamic and Aeroelastic Characteristics of a Variable Sweep Wing

Download or read book Transonic Aerodynamic and Aeroelastic Characteristics of a Variable Sweep Wing written by and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flow over the B-1 wing is studied computationally, including the aeroelastic response of the wing. Computed results are compared with results from wind tunnel and flight tests for both low-sweep and high-sweep cases, at 25.0 deg and 67.5 deg; respectively, for selected transonic Mach numbers. The aerodynamic and aeroelastic computations are made by using the transonic unsteady code ATRAN3S. Steady aerodynamic computations compare well with wind tunnel results for the 25.0 deg sweep case and also for small angles of attack at the 67.5 deg sweep case. The aeroelastic response results show that the wing is stable at the low sweep angle for the calculation at the Mach number at which there is a shock wave. In the higher sweep case, for the higher angle of attack at which oscillations were observed in the flight and wind tunnel tests, the calculations do not show any shock waves. Their absence lends support to the hypothesis that the observed oscillations are due to the presence of leading edge separation vortices and are not due to shock wave motion as was previously proposed.

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Agard Three dimensional Aeroelastic Configurations

Download or read book Agard Three dimensional Aeroelastic Configurations written by and published by . This book was released on 1982 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aeroelastician needs reliable and efficient methods for the calculation of unsteady aerodynamic forces in the frequently critical transonic speed regime. The development of such methods may be enhanced by the availability of a limited number of test cases for the comparison of competing methods. This report contains such test cases for five clean, isolated wings. Wing geometric descriptions, airfoil coordinates, and suggested aerodynamic conditions for each are included. (Author).

Book Computational Unsteady Aerodynamics for Aeroelastic Analysis

Download or read book Computational Unsteady Aerodynamics for Aeroelastic Analysis written by and published by . This book was released on 1987 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Unsteady Transonic Aerodynamics

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

Book Applied Mechanics Reviews

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1989 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: