combustion instabilities

Combustion instabilities are oscillations or fluctuations that occur during the burning process in engines or turbines, such as rockets or jet engines. They happen when the heat release from combustion interacts with pressure waves within the combustion chamber, causing the flame to rhythmically grow and diminish. These fluctuations can lead to loud noises, vibrations, or even damage to the engine components. Understanding and controlling combustion instabilities are crucial for ensuring safe, efficient, and reliable engine operation, especially in aerospace and power generation applications.