PSG Research Group

Particle laden turbulent flows find applications in many industrial processes such as energy conversion, air pollution control, pneumatic conveying of solids, fluidized bed reactors etc. In these types of flows, there are strong coupling between the turbulent fluctuations in the fluid velocity fields, and the fluctuating velocities of the particles. Owing to this simultaneous analysis of both the phases give insight to the modeling of large scale engineering systems. Due to the complexity of the physics behind dense particulate flows, the current modeling paradigm is to rely on empirical…

In general microfluidic devices operates at very low flow rates. Because of very low dimension of the channel and low flow rate fluid phase Reynolds number in general is very low. Owing to this it is a common idea that in case of microfluidics, inertia does not play any significant role but there are few novel applications where inertia plays important role. Two major examples are secondary flow generation in a microchannel and inertial migration of the particles. We aim to investigate the combined effect of secondary flow and inertial particle migration on particle focusing through…

The rheological properties of suspensions are important in designing and processing in many industries (e.g., suspension coating and slurry transport, chemical process industries), biological processes and in nature. Some of the previous studies have shown some chaotic rheological behaviors at macro level which are related to the chaotic dynamical behavior at the micro level at very low Reynolds number. Here we aim to study the temporal behavior of suspension containing spherical and non-spherical particles at finite Reynolds number using lattice Boltzmann Method (LBM).