Browsing by Author "Turner, WJ"
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- ItemCalculation of the effect of fuel particle size on reactor dynamics(Australian Atomic Energy Commission, 1966-11) Turner, WJ; Piper, RHThe effect of fuel particle size on the dynamic behaviour of a 500 MW beryllia moderated reactor fuelled with oxide particles of diameter 2 to 500 microns dispersed in beryllia is discussed. Negative feedback of reactivity proportional to the reactor power occurs because of the very small thermal time constant of the fuel particles. For large fuel particles the feedback considerably reduces the peak power and the energy release following a reactivity accident.
- ItemMovies, plotting and printing of output from serial calculations.(Australian Nuclear Science and Technology Organisation, 1982-03) Turner, WJA description is given of four digital computer programs for displaying the output from large computer calculations which repeatedly evaluate a set of parameters (e.g. the system parameters at each time step of the simulation of a physical system, or during an iterative procedure.) The MOVIE program produces moving graphs on the screen of a GT40 of GT44 Dataway terminal. The PLOT program allows the user to edit a set of plot commands, view there resulting plots and save the plots and the final set of commands. The PRINT program prints output data on the main printer. IPRINT prints data at the terminal. The data base for all these programs is a dump file written by inserting calls to two supplied subroutines in the original serial calculations.
- ItemNAIAD - a computer program for calculation of the steady state and transient behaviour (including LOCA) of compressible two-phase coolant in networks.(Australian Atomic Energy Commission, 1976-04) Trimble, GD; Turner, WJThe three one-dimensional conservation equations of mass, momentum and energy are solved by a stable finite difference scheme which allows the time step to be varied in response to accuracy requirements. Consideration of numerical stability is not necessary. Slip between the phases is allowed and descriptions of complex hydraulic components can be added into specially provided user routines. Intrinsic choking using any of the nine slip models is possible. A pipe or fuel model and detailed surface heat transfer are included.
- ItemOwen-1 - a code for analysis of two-phase compressible flow transients in a single channel.(Australian Atomic Energy Commission, 1975-05) Turner, WJA computer code for simulating two-phase compressible flow transients including loss-of-coolant in a single water cooled channel is described. The momentum flux term is included and slip between the phases is allowed. A pipe model and detailed surface heat transfer is included. The conservation equations are solved by means of an implicit numerically stable finite difference scheme so that time step size can be chosen on accuracy considerations alone.