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Gas outflow into vacuum over a forward- and backward-facing step in a wide range of rarefaction
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In this paper, the authors applied the direct simulation Monte Carlo method to investigate the outflow of rarefied gas into vacuum over a forward and backward-facing step, and the non-equilibrium effects at the ends of the step channel were taken into account by considering the geometry of sufficiently large regions directly adjacent to the inlet and outlet of the channel.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 2021-11-01. It has received 7 citations till now. The article focuses on the topics: Rarefaction & Open-channel flow.read more
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Shock wave-boundary layer interaction in supersonic flow over a forward-facing step
TL;DR: In this paper, a Mach 2.5 flow over a forward-facing step is studied, where the focus is the flow ahead of the step, in particular, the unsteady interactions between the shock, the boundary layer and the separation bubble.
Journal ArticleDOI
Energy analysis of magnetite nanofluid flowing in newly designed sudden expansion tube retrofitted with dimpled fin
Emrehan Gürsoy,Hayati Kadir Pazarlıoğlu,Abdullah Dağdeviren,Mehmet Gürdal,Engin Gedik,Kamil Arslan,Huseyin Kurt +6 more
TL;DR: In this article , forced convection of magnetite nanofluid flow in various expansion ratios has been investigated numerically in the case of Dimpled Tube (DT) 9, and the highest value of performance evaluation criteria (PEC) has been obtained at φ=2.0 vol.
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The First and Second Law Analyses of Thermodynamics for CoFe2O4/H2O Flow in a Sudden Expansion Tube Inserted Elliptical Dimpled Fins
Hayati Kadir Pazarlıoğlu,Emrehan Gürsoy,Mehmet Gürdal,Mutlu Tekir,Engin Gedik,Kamil Arslan,Edip Taşkesen +6 more
TL;DR: In this paper , the authors investigated the effect of the elliptical dimpled fins and its arrays in the sudden expansion tube in terms of thermodynamics laws (energy and entropy generations).
Journal ArticleDOI
Rarefied Gas Flow into Vacuum Through Linearly Diverging And Converging Channels
Oleg V. Sazhin,A. Yu. Sazhin +1 more
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Rarefied gas flow into vacuum through linearly diverging and converging channels
TL;DR: Using the direct simulation Monte Carlo direct method, rarefied gas flow into a vacuum through linearly diverging and gradually diverging channels has been studied in this article , where the problem has been solved in the complete geometrical setup, namely with including certain pre-and post-channel regions in the geometry under consideration.
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Molecular Gas Dynamics and the Direct Simulation of Gas Flows
TL;DR: The direct simulation Monte Carlo (or DSMC) method has, in recent years, become widely used in engineering and scientific studies of gas flows that involve low densities or very small physical dimensions as mentioned in this paper.
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Experimental and Theoretical Investigation of Backward-Facing Step Flow
TL;DR: In this paper, the velocity distribution and reattachment length of a single backward-facing step mounted in a two-dimensional channel were measured using laser-Doppler measurements.
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Lattice boltzmann model for the incompressible navier-stokes equation
Xiaoyi He,Li-Shi Luo,Li-Shi Luo +2 more
TL;DR: Numerical results of simulations of the plane Poiseuille flow driven either by pressure gradient or a fixed velocity profile at entrance as well as of the 2D Womersley flow are presented and are found to be in excellent agreement with theory.