University of Dayton :

Dilip Ballal

Selected Publications

Durbin, M.D., M.D. Vangsness, D.R. Ballal, and V.R. Katta. 1996. Study of flame stability in a model step combustor. Transactions of ASME, Journal of Engineering for Gas Turbines and Power 118: 308-315.
Durbin, M.D. and D.R. Ballal. 1996. Studies of lean blowout in a step swirl combustor. Transactions of ASME, Journal of Engineering for Gas Turbines and Power 118: 72-77.
Heneghan, S.P., S. Zabarnick, D.R. Ballal, and W.E. Harrison, III. 1996. JP-8+100: Development of a thermally stable jet fuel. Transactions of ASME, Journal of Energy Resource Technology 118: 170-179.
Sturgess, G.J., A.L. Lesmerises, S.P. Heneghan, M.D. Vangsness, and D.R. Ballal. 1996. Lean blowout in a research combustor at simulated low pressures. Transactions of ASME, Journal of Engineering for Gas Turbines and Power 118: 773-781.
Zelina, J. and D.R. Ballal. 1997. Combustor stability and emissions research using a well stirred reactor. Transactions of ASME, Journal of Engineering for Gas Turbines and Power 119: 70-75.

Research Activities

Turbulent combustion and fuel thermal stability: A fundamental study of turbulent combustion has produced models for predicting flame stability, extinction, and combustion-generated pollution. His "Combustion and Fuels" group has assisted the Air Force in developing, for turbine engine use, a new high thermal stability JP-8 + 100 fuel which has a 50 percent higher heat sink capability over conventional jet fuels. In laser diagnostics, a new "variable slit width" method makes possible accurate measurements of flame temperature using Coherent Anti-Stokes Raman Spectroscopy (CARS) system.
Current efforts involve studies of ultra-lean fuel combustion and pollutant emissions, the development of higher thermal stability JP-8+225 & 900 jet fuels, particle image velocimetry (PIV) and planar laser-induced fluorescence. For example, a PIV set up in our low speed wind tunnel laboratory will support turbulent flow research.

Honors And Awards