WASHINGTON, June 8, 2021 -- Combustion engines can develop high frequency oscillations, leading to structural damage to the engines and unsafe operating conditions. A detailed understanding of the ...

A vital piece of gas engines, combustors -- the chambers in which the combustion powering the engine occurs -- have the problem of breaking down due to fatal high-frequency oscillations during the ...

Compact variable frequency drives (VFDs) can deliver energy savings by controlling pumps or fans in commercial HVAC equipment. They are micro drives and save space in HVAC controls equipment cabinets.

Flow velocity in the fuel/oxidizer injectors and combustion chamber during combustion oscillations in a model of a rocket engine. (Courtesy: Hiroshi Gotoda) Researchers in Japan have identified a ...

Rocket engines contain confined combustion systems, which are, essentially, combustion chambers. In these chambers, nonlinear interactions among turbulent fuel and oxidizer flows, sound waves, and ...