Binary and Accretion Disk

This is a zoomed in simulation. There is a disk around the secondary star. I did not make the point particle to actually accrete material. Please pay attention to Time>3 when mass loss rate drop again, it seems there is a fall back process.

Binary.gif​

But I still encounter this (thus the program stuck here at Time=4):

High CFL - restarting step. 0.33520E+03 > 0.10000E+02

forrtl: severe (174): SIGSEGV, segmentation fault occurred

Is my physical resolution too high?

Mass loss rate vary with time as:

while v is constant thus density changes like Mass loss rate with time.

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