Numerical simulation of molecular motion around laser microengine blades

Masahiro Ota, Tomohiko Nakao and Moriyoshi Sakamoto

Mathematics and Computers in Simulation (MATCOM), 2001, vol. 55, issue 1, 223-230

Abstract: Gas molecular motions around a laser opto-microengine are numerically simulated by direct simulation Monte Carlo (DSMC) method. We propose an opto-microengine that acts as a micro-actuator in which optical energy is supplied by a laser beam. The opto-microengine is rotated by molecular gas dynamics effects. The effects of the molecular weights of gases on laser opto-microengine performance are revealed by experiments. Helium, argon and xenon gases are used as environmental gases for operation of the opto-microengine. The numerical results show that pressure differences between front and back surfaces of the rotor blade depend on the molecular weights of the gases and accommodation coefficients.

Keywords: Rarefied gas dynamics; Molecular gas dynamics; Direct simulation Monte Carlo method; Thermal force; Radiometric force; Laser heating; Twisted torque; Radio thermometer; Laser opto-microengine; Micromachine (search for similar items in EconPapers)
Date: 2001
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:55:y:2001:i:1:p:223-230

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