WebFyris Alpha is the rst of these modules, and it encapsulates the split sweep semi{Lagrangian remap ppm method used by ppmlr with a number of improvements that have allowed the addition of new micro{physics needed in multi-phase simulations. Future modules are in development. WebThe three-dimensional hydro/ionization code Fyris Alpha (Sutherland 2010) was used to model the effects of a 25 Me star on gas in an M vir =107 Me halo. The density and ... et al. (2014). Because higher mass stars yield more alpha elements, varying the mass of the initial star would alter [α/Fe] at low [Fe/H], meaning that we should not ...
STAR FORMATION IN ULTRA-FAINT DWARFS: CONTINUOUS …
WebWe use FYRIS ALPHA, a shock-capturing code employing a high-order Godunov scheme to track large density variations induced by shocks. We investigate the robustness of the standard relation between the logarithmic density variance ( $\sigma _s^2$ ) and the sonic Mach number ( $\mathcal {M}$ ) of isothermal interstellar turbulence, in the non ... WebDec 28, 2024 · A unique feature of the Fyris simulations is that they include non-equilibrium cooling through time-dependent ionisation calculations (cf. Rosen & Smith 2004). When shocks occur within the inviscid fluid, the jump shock conditions are solved across the discontinuity. This allows us to calculate the Balmer emission produced in shocks and … change image to html code
Fyris Alpha - 3D Noh Test - ANU
WebSep 2, 2015 · We investigate two possible scenarios for the star formation history of Segue 1 using Fyris Alpha simulations of gas in a $10^7$ M$_\odot$ dark matter halo. The lack of stars with intermediate ... The Fyris Alpha runs approximately 4 times faster than ppmlr, for a single grid adiabatic simulation in 3D, owing to more efficient code design, a new Riemann solver and a number of optimizations. With the new performance, the aim was to enhance the microphysics calculations that take place in the … See more The primary reference and description for Fyris Alpha is : A copy of the paper is available: A New Computational Fluid Dynamics Code I: Fyris Alpha. Fyris Alphais a high resolution, shock capturing, multi-phase, up-wind … See more All else being equal, Fyris Alpha is between 3 and 4 times faster than the earlier ppmlr code in 2D. This has allowed the incorporation of more calculations allowing for a more … See more Fyris Alpha has been designed to accept a range of Rieman solvers (each identified by a short codename), and all the solvers of a given system of equations (hydrodynamics here) use a standard interface, making … See more Fyris Alpha generally computes cooling from a cooling function pre-generated for the problem as a function of temperature. When variable mu … See more WebMar 22, 2024 · A new computational fluid dynamics code I: Fyris Alpha. Citation Sutherland, R 2010, 'A new computational fluid dynamics code I: Fyris Alpha', Astrophysics and Space Science, vol. 327, no. 2, pp. 173-206. Year 2010. ANU Authors. Associate Professor Ralph Sutherland; Fields of Research. change image to hd quality