What is the term for the movement of heat and smoke from an area of higher pressure to lower pressure?

The term describing the movement of heat and smoke from an area of higher pressure to an area of lower pressure is known as a flow path. In fire dynamics, heat and smoke are driven by pressure differences caused by various factors, including the fire's intensity and the configuration of the space. The flow path is critical for understanding how smoke spreads and how firefighters can effectively manage conditions in a burning structure.

In fire situations, a well-defined flow path can facilitate the rapid movement of smoke and heat, affecting visibility and the environment firefighters encounter. Understanding this concept helps in strategic planning for ventilation and suppression efforts, as it provides insight into the behavior of smoke and the potential spread of fire. Recognizing a flow path can guide tactics to control and mitigate fire hazards more effectively.