In a lot of cases, a perfect stir reactor is not suitable to model the partial mix of gas. Partially stirred reactor (PaSR) is a practical solution to this with low computational cost.
Motivation
Describe the need for the proposed change:
What problem is it trying to solve? To model a realistic reactor.
Who is affected by the change? This feature will likely involve changes only in zeroD.
Why is this a good solution? This should be easy to implement.
Possible Solutions
One of the PaSR models consider the reactor been split into reacting zone and non-reacting zone with the ratio ฮบ,
Y0 is the inlet mass fraction. ๐_mix is the mixing time scale that can be estimated from turbulence theory such as the Kolmogorov model or experimental data and optimization methods. ๐_c is the chemical time scale that can be estimated from the reaction mechanism.
References
Finite-rate chemistry modeling of non-conventional combustion regimes using a Partially-Stirred Reactor closure: Combustion model formulation and implementation details (https://doi.org/10.1016/j.apenergy.2018.04.085)
Abstract
In a lot of cases, a perfect stir reactor is not suitable to model the partial mix of gas. Partially stirred reactor (PaSR) is a practical solution to this with low computational cost.
Motivation
Describe the need for the proposed change:
Possible Solutions
One of the PaSR models consider the reactor been split into reacting zone and non-reacting zone with the ratio ฮบ,
ฮบ = ๐_c / (๐_c + ๐_mix) dY / dt = ฮบ (Y-Y0) / ๐_mix + ฯ/ฯ Y_out = ฮบ Y + (1-ฮบ ) Y0
Y0 is the inlet mass fraction. ๐_mix is the mixing time scale that can be estimated from turbulence theory such as the Kolmogorov model or experimental data and optimization methods. ๐_c is the chemical time scale that can be estimated from the reaction mechanism.
References
Finite-rate chemistry modeling of non-conventional combustion regimes using a Partially-Stirred Reactor closure: Combustion model formulation and implementation details (https://doi.org/10.1016/j.apenergy.2018.04.085)