Changes between Version 15 and Version 16 of u/erica/AccretionModelingBlog


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Timestamp:
03/20/18 20:04:58 (7 years ago)
Author:
Erica Kaminski
Comment:

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  • u/erica/AccretionModelingBlog

    v15 v16  
    33Am working on a 3D simulation of Bondi Flow onto a central sink particle and studying the accretion properties using the Krumholz accretion algorithm.
    44
    5 The setup has the following parameters (in computational units):
     5The following are the fiducial IC's used in the simulations (in computational units), unless otherwise noted:
    66
    77||Lx=Ly=Lz|| 20 ||
     
    1515$R_{BH} = \frac{GM_*}{C_\infty^2}$
    1616
    17 $\dot{M} = 4 \pi \lambda_{crit}(G M_*)^2c_\infty^{-3}\rho_{\infty}$
     17$\dot{M}_{BH} = 4 \pi \lambda_{crit}(G M_*)^2c_\infty^{-3}\rho_{\infty}$
    1818
    1919$R_s=\frac{5-3\gamma}{4}\frac{GM_*}{C_{\infty}^2}$
     
    2525In the above, $\lambda$ is a numerical coefficient which controls the strength of the accretion flow. At its critical value, $\lambda=\lambda_{crit}$, $\dot{M}$ is strongest. In the code, $\lambda_{crit}$ is solved for using Eqn. 18 in Bondi's paper.
    2626
    27 The following are the fiducial IC's used in the simulations (in computational units), unless otherwise noted:
     27Additionally, the following sims use (unless otherwise noted):
    2828
    2929|| $C_{\infty}$ ||  1.291 ||
     
    3232|| $M_*$ || .14318E+13 ||
    3333|| $R_{BH}$ || 25.63 ||
    34 || $\dot{M}$ || 2692.17  ||
    35 ||Lx=Ly=Lz|| 20 ||
    36 ||Mx=My=Mz || 64 ||
    37 || !MaxLevel (AMR) || 2 ||
    38 || Effective resolution (dx) || .15625 ||
     34|| $\dot{M}_{BH}$ || 2692.17  ||
    3935
    4036== Research Log: ==