Numerical Investigation of Effects of G-Jitter on Buoyant Laminar Diffusion
Flame 01-13-02-0007
This also appears in
SAE International Journal of Aerospace-V130-1EJ
Numerical prediction of a confined, co-flowing, laminar jet diffusion flame has been
investigated under sinusoidal “g-jitter” to describe the flame structure; this type
of flame-body force interaction is typical of a microgravity environment such as in
the spacecraft. We introduced g-jitter in the direction orthogonal to the fuel and
air inflow. We show that the lower frequencies (0.1-0.5 Hz) of sinusoidal g-jitter
significantly affected the flame geometry and behavior. The majority of the flame
structure was found to oscillate directly in response to the imposed g-jitter. It
has also been observed that nonlinearity in the response behaviors is more prominent
in the reaction zone of the flame.
