Numerical Simulation of Flow Structure Near Descent Module in Mars Atmosphere

This paper considers the issues of numerical modeling of nonstationary spatial gas dynamics in the pre-nozzle volume of the combustion chamber of a power plant with a cylindrical slot channel at the power plant of the mass supply surface. The numerical simulation for spatial objects is based on the solution conjugate problem of heat exchange by the control volume method in the open integrated platform for numerical simulation of continuum mechanics problems (openFoam). The calculation results for gas-dynamic and thermal processes in the power plant with a four-nozzle cover are presented. The analysis of gas-dynamic parameters and thermal flows near the nozzle cover, depending on the canal geometry, is given. The topological features of the flow structure and thermophysical parameters near the nozzle cap were studied. For the first time, the transformation of topological features of the flow structure in the pre-nozzle volume at changes in the mass channel’s geometry is revealed, described, and analyzed. The dependence of the Nusselt number in the central point of stagnation on the time of the power plants operation is revealed.

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Direct numerical simulation of natural convection in a square cavity with uniform heat fluxes at the vertical sides: Flow structure and transition

International Journal of Heat and Mass Transfer ◽

10.1016/j.ijheatmasstransfer.2017.08.058 ◽

2017 ◽

Vol 115 ◽

pp. 428-438 ◽

Cited By ~ 3

Author(s):

Ioannis Kouroudis ◽

Panagiotis Saliakellis ◽

Stergios G. Yiantsios

Keyword(s):

Numerical Simulation ◽

Natural Convection ◽

Direct Numerical Simulation ◽

Flow Structure ◽

Heat Fluxes ◽

Square Cavity ◽

Uniform Heat

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Numerical simulation of argon flow structure in plasma vortex reactor

Journal of Physics Conference Series ◽

10.1088/1742-6596/1112/1/012020 ◽

2018 ◽

Vol 1112 ◽

pp. 012020

Author(s):

A I Klimov ◽

S E Kurushina ◽

N E Molevich ◽

D P Porfiriev ◽

I P Zavershinskii

Keyword(s):

Numerical Simulation ◽

Flow Structure ◽

Argon Flow ◽

Vortex Reactor

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Research on the Numerical Simulation of Zoning Flood Retarding and Sand Silting of Flood Plain in the Lower Yellow River

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.243-249.4576 ◽

2011 ◽

Vol 243-249 ◽

pp. 4576-4580

Author(s):

Xiao Lei Zhang ◽

Dong Po Sun ◽

Jun Jie Li

Keyword(s):

Numerical Simulation ◽

Mathematical Model ◽

Flow Structure ◽

Yellow River ◽

Flood Plain ◽

Lower Yellow River ◽

The Lower Yellow River ◽

Water And Sediment ◽

Set Up

The 2-D water and sediment mathematical model which reflects flood retarding and sand silting of flood plain in the Lower Yellow River has been set up in this paper. Through carrying on 2-D water and sediment numerical simulation of the “96.8” typical flood, the authors studied influence of zoning flood retarding and sand silting on flood travel, flow structure of floodplain-channel and transver exchange of water and sediment. The simulating results in different conditions show that, adopting the zoning flood retarding and sand silting in the Lower Yellow River effectively worked on retarding flood and sharpening peaks in the flood retarding basin, guaranteed and expanded transver exchange of water and sediment in the floodplain and channel and maintained the river channel’s vigor. This can relieve “secondary suspended river” states in the Low Yellow River to a certain extent.

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