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Fundamentals of the KRAKEN code. [Eulerian hydrodynamics code for compressible nonviscous flow of several fluids in two-dimensional (axially symmetric) region]

Description: KRAKEN is an Eulerian hydrodynamics code capable of treating compressible nonviscous flow of several fluids in a two-dimensional (axially symmetric) region. In many respects it is reminiscent of the FLIC/PIC methods, although it is considerably different in detail. Both Lagrangian and advection (transport) phases of the problem are considered. The code has a straight-forward approach to differencing. The presently used version of the code is discussed; it is hoped that a more efficient version … more
Date: March 1, 1974
Creator: DeBar, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calculation of ionization in hydrodynamics codes. I. Theory

Description: A formalism is developed for calculating ionization in laser driven hydrodynamics codes. Starting from equations for collisional ionization and radiative recombination, approximations are made to allow their easier solution. Steady-state solutions are assumed to be of most importance to the extent that transient solutions to the rate equations are ignored. Free-bound radiation is also treated in a hydrogenic approximation. (auth)
Date: February 1, 1974
Creator: Nachamkin, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Computer generated movies: another dimension in man-machine communications

Description: From 2nd AEC scientific computer information exchange meeting; New York, New York, USA (2 May 1974). A typical hydrodynamic physics program may run up to 20 hours on a CDC 7600 computer and generate up to a billion numbers. The biggest problem facing the users of these programs is simply comprehending what has been calculated. Stacks of computer listings are typical outputs but serve as a poor communication medium. Static pictures are much better than listings but are limited to two dimensions.… more
Date: April 30, 1974
Creator: Elliott, Raymond L.; Orr, S. Robert & Pequette, Eldon C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Applications of a revived Euler--Shohat Perturbation expansion technique in the study of ocean circulation. [Coastal waters]

Description: Consideration of geophysical vertical plane flows in estuaries and on continental shelves results in nonlinearly coupled partial differential equations for flow and density variables. For the case of steady flow, the equations are reduced to ordinary differential equations by the use of similarity transformations. The remaining nonlinearly coupled ordinary differential equations are solved using a revised Euler-Shohat perturbation technique. An existence theorem for this application of the tech… more
Date: January 1, 1974
Creator: Pietrafesa, L.J.; Struble, R.A. & Klinck, J.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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