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RISRadiometric flow in periodically patterned channels: fluid physics and improved configurations
With the aid of direct simulation Monte Carlo (DSMC), we conduct a detailed investigation
pertaining to the fluid and thermal characteristics of rarefied gas flow with regard to various
arrangements for radiometric pumps featuring vane...
Effects of thermal creep and high order slip/jump on natural convection in microchannels
Natural convection gaseous slip flows in open-ended vertical parallel-plate microchannels with symmetric wall heat fluxes are numerically investigated. A second-order model, including thermal creep effects, is considered ...
A new form of the second order temperature jump boundary condition for the low-speed nanoscale and hypersonic rarefied gas flow simulations
The accuracy of the numerical simulation of rarefied gas flows, in particular the Navier-Stokes-Fourier (N-S-F) equations, depends on the employed surface boundary conditions. In the literature, the combination of the second order slip...
DSMC Investigation of Rarefied Gas Flow through Diverging Micro/Nano-channels
Direct simulation Monte Carlo (DSMC) method with simplified Bernoulli-trials (SBT) collision
scheme has been used to study the rarefied pressure-driven nitrogen flow through diverging
microchannels. The fluid ...
On the Thermally-Driven Gas Flow through Divergent Micro/Nanochannels
A detailed study on thermally driven flows through divergent micro/nanochannels is presented. Rarefied gas flow behavior and thermal mass flow rate were investigated with different divergence angles ranging between 0° and 7° at two aspect ratios (AR...
On the vortical characteristics and cold-to-hot transfer of rarefied flow in a lid-driven isosceles orthogonal triangular cavity with isothermal walls
Rarefied gas flows in nano-scale isosceles triangular cavities with a motion away from the square corner are considered over a wide range of flow rarefactions regimes, i.e., 0.01≤Kn≤10, using the direct simulation Monte Carlo (DSMC) method. We put...
Evaluation of a New Collision Partner Selection Scheme in the Framework of the Direct Simulation Monte Carlo (DSMC)
The current study concerns to the presentation and assessment of a new collision scheme, i.e., Generalized Bernoulli Trials (GBT) scheme, in the Direct Simulation of Mont Carlo (DSMC) method. Here, in the new collision ...
Regulation of Anti-Fourier Heat Transfer for Non-equilibrium Gas Flows through Micro/Nanochannels
In this study, we use the direct simulation Monte Carlo (DSMC) to elaborate on the heat transfer patterns in the pressure-driven rarefied flow through micro/nanochannels. Finite length planar micro/nanochannels are considered ...
Comprehensive assessment of newly-developed slip-jump boundary conditions in high-speed rarefied gas flow simulations
n this paper we numerically evaluate the recently developed Aoki et al. slip and jump conditions in high-speed rarefied gas flows for the first time. These slip and jump conditions are developed to be employed with the Navier...
Investigation of the SBT/SBT-TAS Performance in Unsteady Flows
This work concerned about modifications that help the Direct Simulation of Monte Carlo (DSMC) method to employ smaller amount of simulators/particles in unsteady flow conditions. As it is clear in flow fields with high ...