For flows in a frame of reference that rotates at angular velocity , additional sources of momentum are required to account for the effects of Coriolis force, centrifugal force, and angular acceleration:

(1–178)

where:

(1–179)

(1–180)

(1–181)

and where is the location vector and is the relative frame velocity (that is, the rotating frame velocity for a rotating frame of reference).

In the (total or thermal) energy equation, the advection and transient terms use the rothalpy, , defined by Equation 1–182, in place of the total enthalpy.

(1–182)

In the (total or thermal) energy equation, an additional source of energy is required to account for the effects of angular acceleration:

(1–183)