Also the relative flame length and width for blue and yellow portion of the flame has been examined under microgravity conditions. The length and width of flame during the entire free fall conditions has been examined. The resulting hybrid color flame was found to be blue at the base of the flame followed by a yellow color flame. Several measurements were taken at different air preheats and fuel jet exit Reynolds number. The fuel jet exit Reynolds number was 63. The burner included a 0.686 mm diameter central fuel jet injected into the surrounding high temperature combustion air. The tests results reported here were conducted using propane as the fuel and about 1000 C combustion air. The time resolved flame images under free fall microgravity conditions were obtained from the video images obtained.

The characteristics of gaseous diffusion flames have been obtained using high temperature combustion air under microgravity conditions. Characteristics of Gaseous Diffusion Flames with High Temperature Combustion Air in Microgravity

Pyrosim gauge heat flux on wall