Transport Characteristics and Parametric Sensitivity of a Single-Stage Circular-Channel Knudsen Pump [PDF]
MicromachinesThermal transpiration enables a Knudsen pump to transport gas without moving components. An axial-integration formulation based on pre-computed transport coefficients from the linearized Shakhov kinetic model is applied to a single-stage unit comprising ...
Dingdong Zhang +4 more
doaj +2 more sources
Gas dynamics at the micro-scale: A review of progress in hydrodynamic modelling [PDF]
, 2009 This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009) +3 more
core +12 more sources
Rarefied flow between plates of finite length via the coupling approach [PDF]
, 2011 This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Croce, G +2 more
core +6 more sources
Comparing macroscopic continuum models for rarefied gas dynamics : a new test method [PDF]
, 2006 We propose a new test method for investigating which macroscopic continuum models, among the many existing models, give the best description of rarefied gas flows over a range of Knudsen numbers.
Zheng, Yingsong +2 more
core +4 more sources
The 33rd International Symposium on Rarefied Gas Dynamics (RGD33) was held in Göttingen, Germany, from July 15 to 19, 2024. Since the first meeting in Nice in 1958, venues have changed every two years across countries and continents. This marked only the third time the RGD symposium was held in Germany, returning to Göttingen exactly 50 years after it ...
Becker, Manfred +1 more
openaire +2 more sources
An open source, parallel DSMC code for rarefied gas flows in arbitrary geometries [PDF]
, 2010 This paper presents the results of validation of an open source Direct Simulation Monte Carlo (DSMC) code for general application to rarefied gas flows. The new DSMC code, called dsmcFoam, has been written within the framework of the open source C++ CFD ...
Reese, J. M. +11 more
core +4 more sources
On the accuracy of macroscopic equations for linearized rarefied gas flows
Advances in Aerodynamics, 2020 Many macroscopic equations are proposed to describe the rarefied gas dynamics beyond the Navier-Stokes level, either from the mesoscopic Boltzmann equation or some physical arguments, including (i) Burnett, Woods, super-Burnett, augmented Burnett ...
Lei Wu, Xiao-Jun Gu
doaj +1 more source
On the modelling of isothermal gas flows at the microscale [PDF]
, 2008 This paper makes two new propositions regarding the modelling of rarefied (non-equilibrium), isothermal gas flows at the micro scale. The first is a new test case for benchmarking high-order, or extended, hydrodynamic models for these flows.
Reese, Jason M., Lockerby, Duncan A.
core +5 more sources
Evaporation Boundary Conditions for the Linear R13 Equations Based on the Onsager Theory
Entropy, 2018 Due to the failure of the continuum hypothesis for higher Knudsen numbers, rarefied gases and microflows of gases are particularly difficult to model.
Alexander Felix Beckmann +3 more
doaj +1 more source
Effect of Different Surface Microstructures in the Thermally Induced Self-Propulsion Phenomenon
Micromachines, 2022 In micro/nano-scale systems where the characteristic length is in the order of or less than the mean free path for gas molecules, an object placed close to a heated substrate with a surface microstructure receives a propulsive force.
Clint John Cortes Otic, Shigeru Yonemura
doaj +1 more source