Planar counter diffusion flame with Cantera

[Juan Gutiérrez]

Hi,

i was wondering if it is possible to calculate with Cantera a planar counter diffusion flame.  As far as i know, the equations solved with Cantera are the ones for a axisymmetric configuration. ( see https://cantera.org/science/flames.html). 

Is it possible to somehow transform the solutions to get the profiles of the planar case?

Thank you in advance,

Juan

[Ray Speth]

Hi Juan,

You're correct that Cantera simulates only the axisymmetric case. The equations for the planar case only differ by a few constants, but this option hasn't been implemented in Cantera. If you like, you can suggest this as an enhancement in the repository that we created for this purpose, https://github.com/Cantera/enhancements/issues.

You may also want to take a look at Ember, which is a Cantera-based solver for the time-dependent one-dimensional flame. It solves equations with slightly different boundary conditions (corresponding to an unbounded domain, rather than the finite gap modeled by Cantera), but it does have options for both planar and axisymmetric configurations. You can find it here: https://github.com/speth/ember.

Regards,

Ray

[soroush sheykhbaglou]

Dear Ray,

I have a question regarding the capabilities of the Ember solver within Cantera. Is it possible to use Ember to capture oscillations in a burner-stabilized flame, such as those on a McKenna burner? If so, I would appreciate guidance on how to implement this, perhaps by adapting the Cantera burner_flame.py example (https://cantera.org/dev/examples/python/onedim/burner_flame.html) to track a specific metric like the maximum OH mass fraction location over time.

Best regards,
Soroush