Define segregated flow.

Define segregated flow.

• A. One phase is dispersed in the other.
• B. The two phases are for the most part separate.
• C. The phases are perfectly mixed.
• D. Gas and liquid alternate.

Answer: (B)

Segregated flow means the two phases remain largely separate, with a distinct boundary between them. In this regime, each phase occupies its own region rather than mixing together, so you can have one phase forming a continuous layer or region alongside the other (for example, gas on top of liquid in a horizontal pipe). This contrasts with dispersed flow, where one phase breaks into droplets or bubbles within the other, and with homogeneous flow, where the mixture is uniform throughout. So the key idea is that the phases are for the most part separate, with a clear interface between them.

Segregated flow means the two phases remain largely separate, with a distinct boundary between them. In this regime, each phase occupies its own region rather than mixing together, so you can have one phase forming a continuous layer or region alongside the other (for example, gas on top of liquid in a horizontal pipe). This contrasts with dispersed flow, where one phase breaks into droplets or bubbles within the other, and with homogeneous flow, where the mixture is uniform throughout. So the key idea is that the phases are for the most part separate, with a clear interface between them.