Emeritus Professor, Mechanical Engineering
5000 Forbes Avenue
Scaife Hall 415
Pittsburgh, PA 15213
Professor Chigier's research is in the fields of combustion, atomization and sprays. His research team conducts experiments in spray chambers with applications to rocket combustion in the space shuttle, fuel injection in automobiles, molten metal spraying for manufacturing, coatings and particle technology. Research in spray technology at Carnegie Mellon is recognized internationally, especially for the instrumentation that allows measurement of particle size, velocity, number density and flux, using laser diffraction, phase Doppler and electronic image analyzers for detailed characterization of sprays.
Detailed measurements are being made in molten metal sprays, atomized by supersonic gas jets, for the direct manufacture of aluminum plate by spraying onto a moving belt.
Another project includes examining automobile fuel injections in which emissions are high during cold start. The objective of this research is to complete atomization, vaporization and mixing with the air flow inside the manifold. This research is being conducted in collaboration with General Motors.
In collaboration with NASA-Microgravity, a wind tunnel was specially designed for the study of planar mixing layers with density gradients, using Laser Doppler velocimetry.
Under funding from DOE, the atomization and rheological properties of non-Newtonian liquids and slurries are being studied.
B.Sc. 1952, University of the Witwatersrand, South Africa
M.A. 1960, Ph.D. 1961, Sc.D. 1977, University of Cambridge, England
N. Chigier, Challenges for Future Research in Atomization and Spray Technology, Plenary Lecture, ICLASS Kyoto, July 2006, Atomization and Sprays, Vol.16, No. 7, pp727-736, 2007.
Chigier,N. The Future of Atomization and Sprays, Plenary Lecture, ILASS Europe 2005, Orleans, France.
Chigier, N. Heat and Mass Transfer in Sprays, Plenary Lecture, ICHMT, Antalya Turkey, June, 2005.
Chigier, N. Recent Advances in Spray Technology. ICLASS 2003, Sorrento Italy, Plenary Lecture.
N.Chigier, T.Gemci, Electrohydrodynamic Atomization for MEMS Combustion Engines. (AIAA 2003-0662), 41st AIAA Aerospace Sciences Meeting, Reno, NV, Jan. 2003.