Reynolds number???
 

I want to simulate a bidimensional laminar flow, with a reynolds number of 300000 and a velocity magnitude of 12m/s, over a flat plate with dimensions 31x4.4m. I have set, in Fluent, density =0.01443064, dynamic viscosity =1.789xe-05 and velocity magnitude =12m/s and, in reference values, a length of 31. It's correct? Or exist another more correct manner to set it?

Thanks to all