Performance Metrics of a Parallel Three Dimensional Two-Phase DSMC Method for Particle-Laden Flows
نویسنده
چکیده
Parallelization aspects of a two-phase three dimensional Direct Simulation Monte Carlo (DSMC) method for modeling particle-laden gaseous flow in the vicinity of the Head-Disk Interface (HDI) gap in a modern Hard Disk Drive (HDD) enclosure are discussed in this work. Parallel performance metrics have been extracted and compared by executing this method on supercomputing platforms and various multicore computing systems to illustrate the portability and scalability of the method. Super-linear speedup is obtained for the parallel case on all the computing platforms considered, implying a drastic reduction in the computational time.
منابع مشابه
Parallel three-dimensional DSMC method using mesh refinement and variable time-step scheme
Application of variable time-step and unstructured adaptive mesh refinement in parallel three-dimensional Direct Simulation Monte Carlo (DSMC) method is presented. A variable time-step method using the particle fluxes conservation (mass, momentum and energy) across the cell interface is implemented to reduce the number of simulated particles and the number of iterations of transient period towa...
متن کاملA Low Diffusion Particle Method for Simulating Near-Equilibrium Flows
A new particle method is presented for the numerical simulation of compressible inviscid gas flows, through procedures which involve relatively small modifications to an existing direct simulation Monte Carlo (DSMC) algorithm. Implementation steps are outlined for simulations involving various grid geometries and for gas mixtures comprising an arbitrary number of species. The proposed method is...
متن کاملA preconditioned solver for sharp resolution of multiphase flows at all Mach numbers
A preconditioned five-equation two-phase model coupled with an interface sharpening technique is introduced for simulation of a wide range of multiphase flows with both high and low Mach regimes. Harten-Lax-van Leer-Contact (HLLC) Riemann solver is implemented for solving the discretized equations while tangent of hyperbola for interface capturing (THINC) interface sharpening method is applied ...
متن کاملTwo and Three Dimensional Monte Carlo Simulation of Magnetite Nanoparticle Based Ferrofluids
We have simulated a magnetite nanoparticle based ferrofluid using Monte Carlo method. Two and three dimensional Monte Carlo simulations have been done using parallel computing technique. The aggregation and rearrangement of nanoparticles embedded in a liquid carrier have been studied in various particle volume fractions. Our simulation results are in complete agreement with the reported experim...
متن کاملTowards Development of a Hybrid DSMC-CFD Method for Simulating Hypersonic Interacting Flows
A preliminary hybrid particle-continuum computational framework for simulating hypersonic interacting flows is proposed. The framework consists of the direct simulation Monte Carlo-Information Preservation (DSMC-IP) method coupled with a NavierStokes solver. Since the DSMC-IP method provides the macroscopic information in each time step, determination of the continuum fluxes across the interfac...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008