Numerical Analysis Of Dusty Supersonic Flow Past Blunt Axisymmetric Bodies
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Author | : H. Sugiyama |
Publisher | : |
Total Pages | : 9 |
Release | : 1983 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Numerical Analysis of Dusty Supersonic Flow Past Blunt Axisymmetric Bodies Book in PDF, Epub and Kindle
An inverse method was developed for treating gas-particle supersonic flow past axisymmetric blunt bodies. This method is based on two transformations (von Mises and an additional one), which are convenient for determining the shock-layer flow fields and the body shapes. In using the present method, the pure gas flow fields around spheres were first solved numerically for the freestream Mach numbers = 10, 6, 4, 3, 2 and 1.5. These were found to be in very good agreement with the available results of Van Dyke and Gordon. Then the gas-solid-particle flow in the shock layer around blunt bodies (nearly spheres) were solved for the freestream Mach numbers = 10 and 1.5, with freesteam loading ratios = 0, 0.2, 0.5 and 1.0 and particle diameters 1, 2, 5 and 10 micrometers respectively.
Author | : Milton Van Dyke |
Publisher | : |
Total Pages | : 36 |
Release | : 1959 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Supersonic Flow Past a Family of Blunt Axisymmetric Bodies Book in PDF, Epub and Kindle
Some 100 numerical computations have been carried out for unyawed bodies of revolution with detached bow waves. The gas is assumed perfect with y=5/3, 7/5, or 1. Free-stream Mach numbers are taken as 1.2, 1.5, 2, 3, 4, 6, 10, and [infinity symbol]. The results are summarized with emphasis on the sphere and paraboloid.
Author | : Milton Van Dyke |
Publisher | : |
Total Pages | : 25 |
Release | : 1959 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Supersonic Flow Past a Family of Blunt Axisymmetric Bodies Book in PDF, Epub and Kindle
Some 100 numerical computations have been carried out for unyawed bodies of revolution with detached bow waves. The gas is assumed perfect with y=5/3, 7/5, or 1. Free-stream Mach numbers are taken as 1.2, 1.5, 2, 3, 4, 6, 10, and [infinity symbol]. The results are summarized with emphasis on the sphere and paraboloid.
Author | : P. Kevin Tucker |
Publisher | : |
Total Pages | : |
Release | : 1993 |
Genre | : |
ISBN | : |
Download A Numerical Analysis of Supersonic Flow Over an Axisymmetric Body Book in PDF, Epub and Kindle
Author | : Richard W. Barnwell |
Publisher | : |
Total Pages | : 84 |
Release | : 1971 |
Genre | : Finite differences |
ISBN | : |
Download A Time-dependent Method for Calculating Supersonic Angle-of-attack Flow about Axisymmetric Blunt Bodies with Sharp Shoulders and Smooth Nonaxisymmetric Blunt Bodies Book in PDF, Epub and Kindle
A time-dependent numerical method for calculating supersonic flow about blunt bodies at large angles of attack is presented. The axisymmetric bodies with sharp shoulders which are treated are constructed with a generator composed of segments of constant curvature. The nonaxisymmetric bodies have continuous slope and curvature. All flow fields are inviscid and adiabatic and have one plane of symmetry. A modification to the method of characteristics is introduced for use at the shock wave. A two-step finite-difference method of second-order accuracy is used at the body surface and in the region between the shock and body. A new finite-difference technique is introduced for use at sharp sonic shoulders. Comparisons of the results of the present method with experiment and the results of other methods are made for the flow of equilibrium air past the Apollo command module at the trim angle of attack and for perfect gas flow past a spherical cap and a spherically blunted cone at angle of attack. Both the cap and the blunted cone are terminated with sharp shoulders. Results are presented also for perfect gas flow past a prolate spheroid with its major axis normal to the flow.
Author | : Jerry Curtis South |
Publisher | : |
Total Pages | : 66 |
Release | : 1968 |
Genre | : Mathematical models |
ISBN | : |
Download Calculation of Axisymmetric Supersonic Flow Past Blunt Bodies with Sonic Corners Book in PDF, Epub and Kindle
Author | : Mamoru Inouye |
Publisher | : |
Total Pages | : 42 |
Release | : 1965 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download A Description of Numerical Methods and Computer Programs for Two-dimensional and Axisymmetric Supersonic Flow Over Blunt-nosed and Flared Bodies Book in PDF, Epub and Kindle
Author | : Saul S. Abarbanel |
Publisher | : |
Total Pages | : 44 |
Release | : 1977 |
Genre | : |
ISBN | : |
Download Three Dimensional Supersonic Flow Past Blunt Bodies - Numerical Methods and Computations Book in PDF, Epub and Kindle
Methods for computing numerically the flow past blunted bodies of revolution travelling at supersonic speeds and at angles of attack are developed, using finite difference schemes. Results are shown for a given configuration at two supersonic Mach Numbers for which circumferential pressure distribution is given as well as the lift slope coefficient. To achieve greater computational efficiency a different method was introduced - one based on mapping the body into a line (in the 2-D case) or a rectangle. This was tested so far on the axisymmetric case. (Author).
Author | : John David Anderson (Jr.) |
Publisher | : |
Total Pages | : 78 |
Release | : 1968 |
Genre | : Aerodynamics, Hypersonic |
ISBN | : |
Download On Hypersonic Blunt Body Flow Fields Obtained with a Time-dependent Technique Book in PDF, Epub and Kindle
New results are presented for inviscid, supersonic and hypersonic blunt-body flow fields obtained with a numerical time-dependent method patterned after that of Moretti and Abbett. In addition, important comments are made with regard to the physical and numerical nature of the method. Specifically, numerical results are presented for two-dimensional and axisymmetric parabolic and cubic blunt bodies as well as blunted wedges and cones; these results are presented for zero degrees angle of attack and for a calorically perfect gas with gamma = 1.4. The numerical results are compared with other existing theoretical and experimental data. Also, the effects of initial conditions and boundary conditions are systematically examined with regard to the convergence of the time-dependent numerical solutions, and the point is made that the initial conditions can not be completely arbitrary. Finally, in order to learn more about the performance of the time-dependent method, a numerical experiment is conducted to examine the unsteady propagation and region of influence of a slight pressure disturbance introduced at a point on the surface of a blunt body.
Author | : |
Publisher | : |
Total Pages | : 79 |
Release | : 1964 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Numerical Analysis of Flow Properties about Blunt Bodies Moving at Supersonic Speeds in Equilibrium Gas [with List of References] Book in PDF, Epub and Kindle