[bany]

Recently, we study the flame kernel development. However, we cannot get a smooth flame surface. The computational domain is 2D and the mesh size is 10 um. Turbulent model and combustion model are laminar. Initially, a high-temperature (2000 K) cycle zone are set with topoSet and setFields.



1. BC:
inlet: U: fixedValue (0 20 0) P: zeroGradent T: fixedValue 300 H2: fixedValue O2: fixedValue N2: fixedValue
outlet: U: zeroGradent P: waveTransmissive T: zeroGradent H2: zeroGradent O2: zeroGradent N2: zeroGradent
leftAndright: U:zeroGradent P:zeroGradent T:zeroGradent H2:zeroGradent O2:zeroGradent N2:zeroGradent
frontAndBack empty ......

2. fvScheme

div(phi,Yi) Gauss limitedLinear01 1;
div(phi,h) Gauss linearUpwind limited;
div(phi,U) Gauss linearUpwind limited;
div(phi,Yi_h) Gauss limitedLinear 1;
div(phi,K) Gauss linearUpwind limited;
div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;


Any advice for getting a smooth flame surface are appreciated!