Problem with the update for the scheme choice with Gas Combustion

Hi,

When you use the Gas Combustion model with the D3P model (I didn't try for the other combustion models) and with non adiabatic option to activate the enthalpy, the choice for the scheme is not taking account when I compare the setup.log for the 3 variables :
- enthalpy
- mixture_fraction
- mixture_fraction_variance

Regards,

Yohann

使用D3P模型和非绝热焓选项重现Gas Combustion案例，然后比较enthalpy、mixture_fraction和mixture_fraction_variance对应的setup.log。跟踪所选scheme的记录位置，并验证setup.log中的条目反映了这三个变量的scheme选择。

由索引模型根据 Issue 内容生成。