In a RANS-EVM with k-equation, Include rotation-curvature correction can be activated. Production terms in turbulent equations, Pk and Pε /Pω (for ε-based/ω-based models, respectively) are then multiplied by factor fr1 according to (Ref. 17):

Here Sij is the traceless strain-rate tensor, is vorticity tensor in absolute frame, and ω = ε/(0.09 k) for ε-based models. For physics in nonrotating systems, is zero, while for Frozen rotor and Rotating frame is the frame rotation rate.