Single star

It is about debuging. The former program let the sink particle move when it interact with gas via gravity(not via accretion), the trajectory of the sink particle is odd.

The result of this is that asymmetric angular momentum of the outflow will be generated. Theoretically, there should not be any angular momentum at all, but I guess it is the boundary effect on xy, xz, yz planes.

jzasy.gif​

Then I fixed the sink particle and do not let it move. Using outflow parameters:

Two different outflow velocity

Jz become symmetric but its value increases.

jzsymmnonesc.gif​jzsymm.gif​

Their line plots are:

test1.gif​test2.gif​

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