TY - JFULL AU - A. Abou El-Azm Aly and F. Nicolleau and T. M. Michelitsch and A. F. Nowakowski PY - 2008/5/ TI - Effect of Particle Gravity on the Fractal Dimension of Particle Line in three-dimensional Turbulent Flows using Kinematic Simulation T2 - International Journal of Aerospace and Mechanical Engineering SP - 573 EP - 578 VL - 2 SN - 1307-6892 UR - https://publications.waset.org/pdf/6267 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 16, 2008 N2 - In this study, the dispersion of heavy particles line in an isotropic and incompressible three-dimensional turbulent flow has been studied using the Kinematic Simulation techniques to find out the evolution of the line fractal dimension. The fractal dimension of the line is found in the case of different particle gravity (in practice, different values of particle drift velocity) in the presence of small particle inertia with a comparison with that obtained in the diffusion case of material line at the same Reynolds number. It can be concluded for the dispersion of heavy particles line in turbulent flow that the particle gravity affect the fractal dimension of the line for different particle gravity velocities in the range 0.2 < W < 2. With the increase of the particle drift velocity, the fractal dimension of the line decreases which may be explained as the particles pass many scales in their journey in the direction of the gravity and the particles trajectories do not affect by these scales at high particle drift velocities. ER -