Application of a level set method for simulation of droplet collisions |
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| Affiliation: | 1. Research Scholar,Department of Mechanical Engineering, IIT Bombay, Mumbai-400076, INDIA;2. Assistant Professor, Department of Mechanical Engineering, IIT Bombay, Mumbai-400076, INDIA;3. Associate Professor, Department of Mechanical Engineering, IIT Bombay, Mumbai-400076, INDIA;1. School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China;2. School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China;3. School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China |
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| Abstract: | A level set technique for interface tracking is presented, both for the continuum surface force formulation and the ghost fluid method approach. A projection method is used to solve incompressible Navier–Stokes equations that are coupled to a transport equation for the level set function, defined as the algebraic distance to interface. Results are presented for head-on droplet collisions in coalescence and reflexive regimes with a 2D axi-symmetric code, and for an off-center droplet collision in a separation regime for a large impact parameter with 3D code. Simulations provided realistic and various droplet collision behaviors and they correspond to experimental observations. |
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