• Phase equilibrium model for mixtures of crude oil and solvents using pseudocomponents for crude oil
    fig. of phase equilibrium model and results
    Modeling flowchart on the left and phase equilibrium results of Athabasca bitumen and CO2 on the right.
    It is a generalized phase equilibrium model proposed by us for crude oil with/without solvents.
    [Industrial & Engineering Chemistry Research, 2015] Paper can be found here.
  • Mixing of supercritical water and hydrocarbons
    fig. of non-ideal diffusion
    This work reveals the importance of the non-ideal diffusion driving force in the mixing of supercritical water and hydrocarbons.
    [Journal of Supercritical Fluids, 2015] Paper can be found here.
  • Impact of a cell-laden droplet onto a highly viscous bath
    fig. of cell printing process
    A cell printing process is simulated and shown in the figure. The cell diameter is 30 μm, and droplet diameter 60 μm. The viscosity of the droplet is 1 cP, and that of the viscous bath is 20 cP. The shear modulus of cell is 10 kPa. The surface tension between liquid and air is 73 mN/m. The initial impact velocity is 4.5 m/s. The von Mises stress of cell is color-coded in the figure. The maximum stress occurs at 20.23 μs (frame d). Based on parametric studies, four stages are identified as shown in the following table
    table of cell printing stages
    [Microfluidics & Nanofluidics, 2015] Paper can be found here.
  • Heat transfer in nanofluids — nanoparticle suspensions
    Our mesoscopic simulation tool based on the dissipative particle dynamics (DPD) captures the Brownian motions of nanoparticles suspended in the matrix fluids. Statistical calculations of the thermal conductivity of the nanofluids indicate that the heat transfer enhancement is ordinary and consistent with the average theory.
    [Journal of Applied Physics, 2008] Paper can be found here.
  • Polymer screening in electrokinetic flows
     Video on the left shows the simulation results at zero electro-osmotic flow (EOF), and that on the right at     the EOF speed of 0.35 (non-dimensional velocity).
    Damping of the EOFs by polymer coating has been studied, and the scaling of these neutral polymers at different coating densities and flow velocities have been explored.
    This study revealed the effects of polymer alignment onto the friction of polymer layer in flow.
    [Langmuir, 2007] Paper can be found here.