Combustion Kinetics Laboratory Aerospace and Mechanical Engineering Professor Hai Wang

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Transport Theory of Nanoparticles in Dilute Gases

An analytical theory was developed that unified the Chapman-Enskog theory with various particle transport theories, including the Cunningham slip correction and Waldmann’s theromophoresis.

Molecular dynamics simulations showed that the cause for diffuse gas-particle scattering is caused by molecular adsorption, diffusion and desorption.

Representative Publications

Li, Z. and Wang, H. “Drag force, diffusion coefficient and electric mobility of small particles. I. Theory applicable to free molecular regime.” Physical Review E 68, paper 061206 (2003).

Li, Z. and Wang, H. “Drag force, diffusion coefficient and electric mobility of small particles. II. Applications.” Physical Review E 68, paper 061207 (2003).

Li, Z. and Wang, H. “Thermophoretic force and velocity of small spherical particles in free molecule regime.” Physical Review E, 70, paper 021205 (2004).

Li, Z. and Wang, H. “Gas-nanoparticle scattering: A molecular view of momentum accommodation function.” Physical Review Letters, 95, paper 014502 (2005).

Wang, H. “Transport properties of small spherical particles,” Annals of the New York Academy of Science (Interdisciplinary Transport Phenomena V: Fluid, Thermal, Biological, Materials & Space Sciences, S. S. Sadhal Ed.), in press, 2008.