Experimental study of the flowfield of a V-shaped premixed turbulent flame

Conference · Thu Jan 01 00:00:00 EST 1981

OSTI ID:6507269

Cheng, R K; Ng, T T

The flowfield of a V-shaped, premixed ethylene/air flame in grid induced turbulence has been studied using Laser Doubler Velocimetry. The experimental conditions covered free-stream velocities of 5 and 7 m/s and equivalence ratios ranging from 0.6 to 0.78. The two-dimensional velocity vectors obtained indicate that flow deflection in the free stream was significant and seemed to correlate with the flame angle. The influence of the flame holder wake on the flame was demonstrated. In the presence of the flame, an increase in the turbulence level in the free stream was found and was attributed to fluctuations in flow deflection induced by the fluctuating flame.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6507269
• Report Number(s): LBL-12141; CONF-810704-4
• Resource Relation: Conference: 1. international specialists meeting of the Combustion Institute, Bordequx, France, 20 Jul 1981
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ETHYLENE
COMBUSTION
FLAME PROPAGATION
AIR
FLAMES
FLUCTUATIONS
TURBULENCE
VELOCITY
ALKENES
CHEMICAL REACTIONS
FLUIDS
GASES
HYDROCARBONS
ORGANIC COMPOUNDS
OXIDATION
THERMOCHEMICAL PROCESSES
VARIATIONS
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry