Parallel Latice-Boltzmann Simulation of Fluid Flow in Centrifugal Elutriation Chambers
نویسندگان
چکیده
A b s t r a c t . We present parallel lattice-Boltzmann simulations of fluid flow in a centrifugal elutriation chamber, a cell separation device for human blood cells. The critical factor in this separation technique is the hydrodynamic flow field. Understanding the influence of design parameters of a chamber on the flow field is important in optimizations of this process. Two different issues are considered in this paper: load balancing of the parallel lattice-Boltzmann simulations and preliminary simulations of fluid flow for a range of Reynolds numbers. It is shown that by exploiting appropriate load balancing strategies, such as the orthogonal recursive bisection method, the lattice-Boltzmann scheme is an efficient method for this application. Furthermore, 2D simulations confirm that the quality of separation degenerates above certain Reynolds numbers.
منابع مشابه
Evaluation of two lattice Boltzmann methods for fluid flow simulation in a stirred tank
In the present study, commonly used weakly compressible lattice Boltzmann method and Guo incompressible lattice Boltzmann method have been used to simulate fluid flow in a stirred tank. For this purpose a 3D Parallel code has been developed in the framework of the lattice Boltzmann method. This program has been used for simulation of flow at different geometries such as 2D channel fluid flow an...
متن کاملNumerical Simulation of Fluid Flow Past a Square Cylinder Using a Lattice Boltzmann Method
The method of lattice boltzmann equation(LBE) is a kinetic-based approach for fluid flow computations. In the last decade, minimal kinetic models, and primarily the LBE, have met with significant success in the simulation of complex hydrodynamic phenomena, ranging from slow flows in grossly irregular geometries to fully developed turbulence, to flow with dynamic phase transitions. In the presen...
متن کاملImproving the Cooling Process of Heavy-Duty Engines through Three Dimensional Simulation of Fluid Flow in its Coolant Centrifugal Pump
This paper investigates 3D simulation of fluid flow in a centrifugal pump from the Detroit Diesel company to extract possible engine cooling trends. The velocity and pressure profile of water, the coolant, is analyzed and the characteristic curves of the pump are derived. This provides a useful evaluation of the pump performance at all working conditions. For this aim, a computational fluid dy...
متن کاملNumerical Simulation of Fluid Flow over a Ceramic Nanoparticle in Drug Delivery System
In this work, for better understanding of drug delivery systems, blood flow over a ceramic nanoparticle is investigated through microvessels. Drug is considered as a nanoparticle coated with the rigid ceramic. Due to the low characteristic size in the microvessel, the fluid flow is not continuum and the no-slip boundary condition cannot be applied. To solve this problem lattice Boltzmann method...
متن کاملImplementation of D3Q19 Lattice Boltzmann Method with a Curved Wall Boundary Condition for Simulation of Practical Flow Problems
In this paper, implementation of an extended form of a no-slip wall boundary condition is presented for the three-dimensional (3-D) lattice Boltzmann method (LBM) for solving the incompressible fluid flows with complex geometries. The boundary condition is based on the off-lattice scheme with a polynomial interpolation which is used to reconstruct the curved or irregular wall boundary on the ne...
متن کامل