| 1 | = Kernel Equations = |
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| 3 | The outflow module injects a fraction of accreted mass, momentum and angular momentum back into the grid following each accretion time step and between hydro advances. |
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| 5 | Before we discuss the details of this routine, let us briefly recall the accretion prescription here. The feedback module is currently configured to work with the Bondi accretion routine in the code (aka Krumholz accretion). This routine establishes a mass cut-off of gravitationally unstable material around the sink particle (in a control volume of radius = 4dx). Any mass greater than this cut off is removed from the ith cell in this volume and placed into the sink particle: |
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| 7 | This implies that the momentum in the ith cell has now decreased discontinuously over the accretion step. To correct for this, the `missing' momentum is placed into the sink particle: |
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| 10 | = Some old research notes on running some test cases -> = |