
Periodic flow occurs when the physical geometry of interest and the expected pattern of the flow/thermal solution have a periodically repeating nature. Two types of periodic flow can be modeled in FLUENT. In the first type, no pressure drop occurs across the periodic planes. In the second type, a pressure drop occurs across translationally periodic boundaries, resulting in "fullydeveloped'' or "streamwiseperiodic'' flow.
This section discusses streamwiseperiodic flow. A description of nopressuredrop periodic flow is provided in Section 7.15, and a description of streamwiseperiodic heat transfer is provided in Section 13.4.
Information about streamwiseperiodic flow is presented in the following sections: