Computational investigation of micro bacward-facing step duct flow in slip regime

Bayram Celik; Firat Oguz Edis

doi:10.1080/15567260701715438

Computational investigation of micro bacward-facing step duct flow in slip regime

Bayram Celik, Firat Oguz Edis^*

^*Corresponding author for this work

Department of Astronautical Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

A comprehensive computational analysis is performed to investigate the nature of rarefied gas flow through a backward-facing step duct. A characteristic-based split Navier-Stokes FEM solver is used for the simulations of the flows found in slip regime. The second-order slip-velocity and temperature-jump boundary conditions of Beskok and Karniadakis are applied on the duct walls. Changing flow and heat transfer behavior of the flow due to the varying conditions characterized with non-dimensional parameters are presented and discussed in this article.

Original language	English
Pages (from-to)	319-331
Number of pages	13
Journal	Nanoscale and Microscale Thermophysical Engineering
Volume	11
Issue number	3-4
DOIs	https://doi.org/10.1080/15567260701715438
Publication status	Published - Jul 2007

Keywords

Characteristic-based-split
Finite element method
Microflows
Step duct

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10.1080/15567260701715438

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abstract = "A comprehensive computational analysis is performed to investigate the nature of rarefied gas flow through a backward-facing step duct. A characteristic-based split Navier-Stokes FEM solver is used for the simulations of the flows found in slip regime. The second-order slip-velocity and temperature-jump boundary conditions of Beskok and Karniadakis are applied on the duct walls. Changing flow and heat transfer behavior of the flow due to the varying conditions characterized with non-dimensional parameters are presented and discussed in this article.",

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AU - Edis, Firat Oguz

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AB - A comprehensive computational analysis is performed to investigate the nature of rarefied gas flow through a backward-facing step duct. A characteristic-based split Navier-Stokes FEM solver is used for the simulations of the flows found in slip regime. The second-order slip-velocity and temperature-jump boundary conditions of Beskok and Karniadakis are applied on the duct walls. Changing flow and heat transfer behavior of the flow due to the varying conditions characterized with non-dimensional parameters are presented and discussed in this article.

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KW - Finite element method

KW - Microflows

KW - Step duct

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Computational investigation of micro bacward-facing step duct flow in slip regime

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Keywords

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