[Mesa-users] Correct interpretation of dvdt_grav

[Varshney, Ishaan]

Dear MESA users,

I am trying to understand the correct definition of dvdt_grav output data. This output was given in the profile_column.list which I am using to study the X-ray bursts winds. I am trying to understand whether it's the same dv/dt which appears in the 1-D spherical momentum equation:
ρ*Dv_r/Dt=−dP/dr−ρ*GM/r^2    , because when on plotting, it is giving me gravitational acceleration. (Plot attached)

Also, plotting dvdt_grav / (GM/r^2) gives 1.

So, can anyone please help me understand the correct definition of this output…

Thank you,
Ishaan
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