A- 26 Invader in Action by Jim Mesko

By Jim Mesko

A- 26 Invader in motion - Squadron/Signal 1134 КНИГИ ;ВОЕННАЯ ИСТОРИЯ Издательство: Squadron/Signal guides Серия: plane 134 Название: A-26 Invader in motion Язык: English Год издания: 1993 Количество страниц: forty nine ISBN: 0-89747-296-9 Формат: pdf Размер: 10.8 mb eighty five

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1241-1268, 1988. , "Unified CFD Algorithm with a Pressure Based Method," 6th Int'l. Symposium on Comp. , Sept 4-8, 1995, Lake Tahoe, NV. 33 Choi, D. , Vol. 23, No. 10, 1518-1524, 1985. Chorin, A. , "A Numerical Method for Solving Incompressible Viscous Flow Problems," J. Comp. , Vol. 2, pp. 12-26, 1967. , "Numerical Solution of Navier-Stokes equations," Mathematics of Computation, Vol. 22, No. 104, 745-762, 1968. Gresho, M. P. and Sani, R. , "On Pressure Boundary Conditions for the Incompressible Navier-Stokes Equations," Int.

O 60 50 A 40 E s~ 30 w m 20 i. - - - {•• i 10 20 30 40 100 200 300 Number of • CPUs Fig, 16. Time (sec) per iteration for SSME Impeller computations using 1NS3DMLP. Fig. 17. Snapshots of particle traces and pressure surfaces from unsteady turbopump computations. Using the MLP parallel implementation, time-accurate computations for the SSMErigl configuration have been carried out on SGI Origin 2000 and 3000 platforms. Instantaneous snapshots of particle traces and pressure surfaces from these computations are shown in Figure 17.

Velocity vectors inside various bearing geometries. Parametric studies to eliminate the back flow near the hub region by tapering the hub surface have also performed for this configuration. Figure 22 shows the circumferentially averaged meridional velocity distribution along the blade height for various designs. The original blade design is referred to as Design I. Design II has less blade curvature than Design I in the trailing edge region, and Design III has more blade curvature than Design I.

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