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Study of Tangential Coefficient of Restitution in Nano-particles Collision

Shahbakhti, Abbas | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 51893 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Sayyadi, Hasan; Nejat, Hosein
  7. Abstract:
  8. In this thesis, the collisions of two fluorine-C60 nanoparticles have been studied using molecular dynamics simulation. The main purpose of this thesis is to present a completely new method based on the definition of the vertical and tangential coefficient of restitution, although by using the combination of the simulation and theory results, we can obtain the approximate parameters of physical properties of nanoparticles, such as hardness coefficient, surface tension, friction coefficient, etc.At first, two fluorine C60 under different conditions, including collision velocity, collision angle, initial temperature, initial rotational angle of the molecule, and various potential applications in the simulation are caught. Then, the vertical and tangential coefficient of restitution is carefully defined and the impact of each of the different situations on them is studied. The simulation results are compared and validated with the theories, and finally, by designing a new method based on the simulation and theory combination, we obtain the physical parameters of the C60 molecule, such as the hardness factor, surface tension and the two-fluorine friction coefficient, in contact with each other. .Also, the method presented in this thesis is quite general and can be used to obtain the physical properties of different nanoparticles
  9. Keywords:
  10. Molecular Dynamics ; Restitution Coefficient ; Nanoparticles ; Collision ; Fullerene Nano Particle

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