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"Long Axis of Building" fields on Airflow Network: Simulation Control

So, my question is short and "simple": for a rectangular building with longer South-North façades, in the 2 "Long Axis of Building" fields in the Airflow Network's Simulation Control, do I have to input 90º and below the ratio (not 1), or not? I ask this because I commonly see both of these left as default for rectangular buildings with larger S-N than E-W façades. And I do want it to calculate the Wind Pressure Coefficient. (I have GlobalGeometryRules as Relative, but the true North angle set as 0º in Building.)

Thanks in advance!