[FLASH-USERS] [EXTERNAL] Re: co-rotating frames

[Tomasz Plewa]

Hi Sylvain -

No, not that I know of. It is not that complicated -- more challenging 
is producing the initial equilibrium, especially for realistic stellar 
models.

Tomek
-- 
On 8/6/26 13:56, Sylvain Turcotte wrote:
> Hello Tomek,
>
> Thank you for your reply.
> I already had found your white dwarf paper which I assume is Fenn et 
> al. (2016). Since you used Proteus, I conclude that, as I expected, 
> there is no native implementation of co-rotating frames in Flash. 
> Google AI has quite the imagination.
>
> Best regards,
> Sylvain
> ------------------------------------------------------------------------
> *From:* Tomasz Plewa <tplewa at fsu.edu>
> *Sent:* Wednesday, August 5, 2026 11:02 PM
> *To:* Sylvain Turcotte <sturcott at UBishops.ca>; 
> flash-users at flash.rochester.edu <flash-users at flash.rochester.edu>
> *Subject:* [EXTERNAL] Re: co-rotating frames
> Hi Sylvain —
>
> We have a paper on merging white dwarfs and used a corotating frame 
> for protoplantary disk simulations.
>
> Hope this helps -
>
> Tomek
>
>
> Get Outlook for iOS 
> <https://aka.ms/o0ukef>
> ------------------------------------------------------------------------
> *From:* flash-users <flash-users-bounces at flash.rochester.edu> on 
> behalf of Sylvain Turcotte <sturcott at UBishops.ca>
> *Sent:* Wednesday, 05 August 2026 21:47:16
> *To:* flash-users at flash.rochester.edu <flash-users at flash.rochester.edu>
> *Subject:* [FLASH-USERS] co-rotating frames
> Hello everyone,
>
> I was looking around to see if anyone used flash with a co-rotating 
> frame and google AI hallucinated the following lines to include in a 
> flash.par file:
>
> # Example parameter settings for a rotating binary system
> useGravity          = .true.
> useRotationalFrame  = .true.       # Activates the rotating frame 
> source modules
>
> # Define the constant angular velocity vector (e.g., rotation around 
> Z-axis)
> omega_x             = 0.0
> omega_y             = 0.0
> omega_z             = 1.25e-3      # Rad/sec based on the system's 
> orbital period
>
> # Center of rotation (usually the center of mass of the grid/system)
> xCenterRotation     = 0.0
> yCenterRotation     = 0.0
> zCenterRotation     = 0.0
>
> I have not found anything related to these in the documentation. Is 
> google AI anywhere close to something that actually exists?
>
> Best,
> Sylvain
>
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