The second option for flame speeds is the Table Lookup option. Ansys Forte comes installed with pre-built laminar flame-speed tables for five common gasoline and natural-gas fuel-surrogate components that can be used with the Table Lookup option; these can be considered as templates when you want to build your own laminar flame-speed tables. The conditions covered for the built-in tables included as part of the Table Lookup option are summarized in Table 3: Mixture conditions covered by the built-in laminar flame-speed tables available in the Table Lookup option. Accessing these tables is described in Flame Model, under Chemistry > Flame-speed Model in the Workflow tree.