Slip length measurement of gas flow

Abdelhamid Maali (1) , Stéphane Colin (2) , Bharat Bhushan (3)

1 LOMA - Laboratoire Ondes et Matière d'Aquitaine
2 ICA - Institut Clément Ader
3 NLB2 - Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics

In this paper, we present a review of the most important techniques used to measure the slip length of gas flow on isothermal surfaces. First, we present the famous Millikan experiment and then the rotating cylinder and spinning rotor gauge methods. Then, we describe the gas flow rate experiment, which is the most widely used technique to probe a confined gas and measure the slip. Finally, we present a promising technique using an atomic force microscope introduced recently to study the behavior of nanoscale confined gas.

Mots clés: Millikan experiment; confined gas; atomic force microscopy; slip length; gas flow

Domaines: Matière Molle [cond-mat.soft]

Abdelhamid Maali, Stéphane Colin, Bharat Bhushan. Slip length measurement of gas flow. Nanotechnology, 2016, 27 (37), pp.374004. ⟨10.1088/0957-4484/27/37/374004⟩. ⟨hal-01392553⟩