The motivation of the current paper is to provide a detailed review of crucial topics in micro-
and nanoscale gas flows, ie, velocity slip and temperature jump phenomena and their …

The Knudsen pump (KP) is a kind of micro-pump that can form thermally induced flows
induced by temperature fields in rarefied gas environments. It has the advantages of having …

A net gas flow can be induced in the gap between periodically structured surfaces held at
fixed but different temperatures when the reflection symmetry along the channel axis is …

This paper presents a numerical analysis of a novel configuration of Knudsen pump for
rarefied gas flow. The pumping element consists of two facing isothermal ratchet surfaces at …

We derive the continuum equations and boundary conditions governing phonon-mediated
heat transfer in the limit of a small but finite mean-free path from the asymptotic solution of …

The article presents a numerical investigation of separation effect for the mixture of noble
gases in a plane channel with a system of differently heated cylindrical filaments. The …

Thermal transpiration pumping in multistage assemblies is computationally investigated.
Each stage is formed by combining in series-long microchannels with (a) uniform–uniform …

We present numerical simulations of a new system of micro-pump based on the thermal
creep effect described by the kinetic theory of gases. This device is made of a simple smooth …

A Knudsen pump operates under the thermal transpiration effect or the thermal edge effect
on the micro-scale. Due to the uneven temperature distribution of the walls in the channel …

This paper presents a numerical analysis of a novel configuration of the Knudsen pump for
rarefied gas flow. A basic unit of the ratchet-like periodically patterned micro-channel …