What is the term for high-volume, high-velocity, turbulent, ultra-dense black smoke?

The term for high-volume, high-velocity, turbulent, ultra-dense black smoke is typically referred to in the firefighting community as "black fire," as it relates to the intense, dangerous smoke produced during certain types of structural fires, particularly those fueled by synthetic materials. This phenomenon indicates that a significant amount of burning is occurring, generating thick, black smoke that can obscure visibility and pose serious health hazards due to its toxic components.

This type of smoke often results from an incomplete combustion process, where materials, especially plastics and other carbon-based substances, release heavy smoke. The black color signifies high particulate content and suggests that the materials are not burning efficiently, which can lead to rapid fire spread and increased danger to firefighters.

In contrast, "smoke plume," "flame shadow," and "flashover" refer to different concepts within fire dynamics and firefighting terminology. A smoke plume pertains to the visible column of smoke rising from a fire, while a flame shadow refers to the area created by flame where no light reaches because of the obstruction. Flashover, on the other hand, denotes the rapid spread of fire throughout a compartment when the temperature reaches a certain threshold, causing all combustible materials to ignite almost simultaneously. These terms address different aspects of