Hi Mahmoud:
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It would be best to start a new thread for each model, as an engineer answering a Fluent thread may be unfamiliar with Forte, etc ...
From what I can see, all the combustible materials in the Chemistry library should be injectable.
Here is an example with gasoline:
The selection available for my example are all the c-h species in the chemistry set. Your selection looks really strange, as those materials would not be together in one chemistry library. h2 should be in almost every IC engine chemistry library that I know of.
You can check the contents of your chemistry library here:
and then here to get a full listing of available species.
If you are new to Forte, I would recommend looking over the tutorials and exploring one that is closest to the type of engine and fuel you are trying to model.
I hope this helps.
Best Regards,
Judy