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Mohammad Zabetian,Mohammad Hassan Saidi,Mohammad Said Saidi,Mohammad Behshad Shafii 대한기계학회 2014 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.28 No.3
Particle manipulation using laser beam is almost a new and contactless technique in particulate sciences. The method is based on theradiation pressure of light photons on the particles suspended in a semi-transparent fluid. Applications of the technique mainly covermicroscopic separation and detection of biological objects. In this work, a theoretical study is conducted to investigate the hydrodynamicand thermal effects on a particulate flow in a mini-channel. Laser thermal effects are studied as a result of light absorption either in fluidor dispersed phase. An analytical model is developed to be the real simulator of a test bed developed by the authors. The main objectiveof performed simulation is to determine the conditions of hydrodynamic laser-particle interaction and the contribution of thermal effects. More specifically, the criteria for size of particles and beam parameters to meet the mentioned conditions are presented. The model resultsare used for design and selection of elements in a particle manipulation system.