Control Volume and System Representations

Two key frameworks are employed to analyze mass, energy, and momentum transfer: the control volume approach and the system approach. These frameworks offer different perspectives, depending on whether the focus is on a specific region in space (control volume approach) or a defined mass of fluid (system approach).

The control volume appro...

A control volume is a defined region in space where interactions involving mass, energy, or momentum are analyzed.

Consider water flowing through a pipe. The control volume would be a section of the pipe, and the control surface would be the boundary of this section.

As water enters and exits this control volume, conservation laws ...