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Author: E. A. Krasilʹshchikova Publisher: ISBN: Category : Aerodynamics Languages : en Pages : 138
Book Description
Abstract: Equations are developed using the source distribution method for the velocity potential function and pressure on thin wings in steady and unsteady motion. Closed form solutions are given for harmonically oscillating wings of general plan form including the effect of the wing wake. Some useful examples are presented in an appendix for arrow, semielliptical, and hexagonal plan form wings. The paper is essentially a summary of previous work by the author.
Author: E. A. Krasilʹshchikova Publisher: ISBN: Category : Aerodynamics Languages : en Pages : 138
Book Description
Abstract: Equations are developed using the source distribution method for the velocity potential function and pressure on thin wings in steady and unsteady motion. Closed form solutions are given for harmonically oscillating wings of general plan form including the effect of the wing wake. Some useful examples are presented in an appendix for arrow, semielliptical, and hexagonal plan form wings. The paper is essentially a summary of previous work by the author.
Author: Eric Reissner Publisher: ISBN: Category : Aerofoils Languages : en Pages : 22
Book Description
As part of an investigation of flows around and forces on an oscillating finite wing in subsonic compressible flow, the exact double integrals occurring in the theoretical formulation of the three-dimensional nonstationary aerodynamic forces have previously been reduced to single integrals over the range of either one of the two independent variables. The present report describes a method for solving the resultant three-dimensional problem based on a generalization of approximate methods for solving two-dimensional problems. It is shown that the calculation of three-dimensional corrections to the two-dimensional integral equation for spanwise variation of circulation, provided tabulated values for the kernal of the integral equation are available.
Author: B. I. Fridlender Publisher: ISBN: Category : Languages : en Pages : 9
Book Description
The aerodynamic characteristics of a thin, cruciform wing consisting of four consoles of arbitrary geometric form are mathematical analyzed.
Author: Eric Reissner Publisher: ISBN: Category : Aerofoils Languages : en Pages : 44
Book Description
The present report is concerned with the problem of the oscillating airfoil of finite span, within the frame of the linearized lifting surface theory. The aim of this study is the development of a theory which incorporates simultaneously the effects of three-dimensionality of the flow and of compressibility of the fluid. As an exact solution of this problem, even within the limitations of the linearized theory, presents very great difficulties, it is worth while to work toward an approximate theory which is valid provided the aspect ratio of the lifting surface is not too small.
Author: Publisher: ISBN: Category : Airplanes Languages : en Pages : 680
Book Description
For determination of the elastic constants of airplane tires which are required for the numerical calculations of the shimmy properties of nose and tail wheels, deformation measurements were carried out on four different tires. For this purpose, the tires were loaded in each case with a normal load and then with a lateral force, a tangential force, and a moment. Moreover, the weight and the mass moment of inertia about a vertical axis were determined for the various tires.
Author: E. A. KRASILSHCHIKOVA Publisher: ISBN: Category : Languages : en Pages : 1
Book Description
The linearized boundary value problem for the velocity potential for steady or unsteady finite wings in a compressible medium is formulated. The general equation for the velocity potential is given in the form of integrals of source distributions. The local source strength, determined in previous investigations (for example, in NACA TM-1383 AD 107 582), is proportional to local downwash, but the region that must be covered by sources, as well as the domain of integration, must extend over all points of the xyplane from which disturbances can affect the potential. (Author).
Author: E. A. Krasilʹshchikova
Author: E. A. Krasilʹshchikova
Author: Eric Reissner
Author: B. I. Fridlender
Author: Eric Reissner
Author: E. A. Krasilʹshchikova
Author: Edward Carson Yates
Author: E. A. Krasilʹshchikova
Author: 
Author: Ion Paraschivoiu
Author: E. A. KRASILSHCHIKOVA