Microchannels and Nanochannels Gas Flow for the Entire Knudsen Number Domain
Конференцијски прилог (Објављена верзија)
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This paper presents an analytical solution for steady rarefied compressible viscous gas flow in the microchannels and nanochannels with constant or slowly varying cross section. It covers both all gas rarefaction regimes (from continuum to free molecular gas flow) and all Mach number regimes (from subsonic to supersonic). The solutions for the velocity and pressure distribution in the channels is obtained by the macroscopic approach, using the one-dimensional model of continuum equations. A specially modeled friction factor is attained by an approach that includes both the general velocity slip boundary condition, and the dynamic viscosity generalized by the rarefaction correction parameter. This method spreads the application of the solution to the entire range of Knudsen numbers. Moreover, inclusion of the inertia effect into the governing equations allows the application of the solution to both subsonic and supersonic gas flows. The presented solution confirms the existence of the K...nudsen minimum in the diverging, converging and microchannels and nanochannels with constant cross section.
Кључне речи:
nanochannel / microchannel / Knudsen minimum / rarefied gas flow / compressible flowИзвор:
AEROMEET2022 Abstract Book, 2022Издавач:
- ALBEDO MEETINGS
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200105 (Универзитет у Београду, Машински факултет) (RS-MESTD-inst-2020-200105)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Milićev, Snežana PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5480 AB - This paper presents an analytical solution for steady rarefied compressible viscous gas flow in the microchannels and nanochannels with constant or slowly varying cross section. It covers both all gas rarefaction regimes (from continuum to free molecular gas flow) and all Mach number regimes (from subsonic to supersonic). The solutions for the velocity and pressure distribution in the channels is obtained by the macroscopic approach, using the one-dimensional model of continuum equations. A specially modeled friction factor is attained by an approach that includes both the general velocity slip boundary condition, and the dynamic viscosity generalized by the rarefaction correction parameter. This method spreads the application of the solution to the entire range of Knudsen numbers. Moreover, inclusion of the inertia effect into the governing equations allows the application of the solution to both subsonic and supersonic gas flows. The presented solution confirms the existence of the Knudsen minimum in the diverging, converging and microchannels and nanochannels with constant cross section. PB - ALBEDO MEETINGS C3 - AEROMEET2022 Abstract Book T1 - Microchannels and Nanochannels Gas Flow for the Entire Knudsen Number Domain UR - https://hdl.handle.net/21.15107/rcub_machinery_5480 ER -
@conference{ author = "Milićev, Snežana", year = "2022", abstract = "This paper presents an analytical solution for steady rarefied compressible viscous gas flow in the microchannels and nanochannels with constant or slowly varying cross section. It covers both all gas rarefaction regimes (from continuum to free molecular gas flow) and all Mach number regimes (from subsonic to supersonic). The solutions for the velocity and pressure distribution in the channels is obtained by the macroscopic approach, using the one-dimensional model of continuum equations. A specially modeled friction factor is attained by an approach that includes both the general velocity slip boundary condition, and the dynamic viscosity generalized by the rarefaction correction parameter. This method spreads the application of the solution to the entire range of Knudsen numbers. Moreover, inclusion of the inertia effect into the governing equations allows the application of the solution to both subsonic and supersonic gas flows. The presented solution confirms the existence of the Knudsen minimum in the diverging, converging and microchannels and nanochannels with constant cross section.", publisher = "ALBEDO MEETINGS", journal = "AEROMEET2022 Abstract Book", title = "Microchannels and Nanochannels Gas Flow for the Entire Knudsen Number Domain", url = "https://hdl.handle.net/21.15107/rcub_machinery_5480" }
Milićev, S.. (2022). Microchannels and Nanochannels Gas Flow for the Entire Knudsen Number Domain. in AEROMEET2022 Abstract Book ALBEDO MEETINGS.. https://hdl.handle.net/21.15107/rcub_machinery_5480
Milićev S. Microchannels and Nanochannels Gas Flow for the Entire Knudsen Number Domain. in AEROMEET2022 Abstract Book. 2022;. https://hdl.handle.net/21.15107/rcub_machinery_5480 .
Milićev, Snežana, "Microchannels and Nanochannels Gas Flow for the Entire Knudsen Number Domain" in AEROMEET2022 Abstract Book (2022), https://hdl.handle.net/21.15107/rcub_machinery_5480 .