Numerical Simulation of the Process of Phase Transitions in Gas-Dynamic Flows in Nozzles and Jets

2020 ◽  
pp. 133-151 ◽  
Author(s):  
Igor E. Ivanov ◽  
Vladislav S. Nazarov ◽  
Vladimir Yu. Gidaspov ◽  
Igor A. Kryukov
Keyword(s):  
Numerical Simulation ◽  
Phase Transitions ◽  
Gas Dynamic ◽  
Dynamic Flows

scholarly journals Direct numerical simulation of two-phase gas dynamic flows with phase transition for water and for liquid sodium

2017 ◽  
Vol 115 ◽  
pp. 05009 ◽  
Author(s):  
Anna Aksenova ◽  
Vladimir Chudanov ◽  
Alexey Leonov ◽  
Artem Makarevich
Keyword(s):  
Phase Transition ◽  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Liquid Sodium ◽  
Two Phase ◽  
Gas Dynamic ◽  
Dynamic Flows

scholarly journals Numerical Simulation of Intrachamber Processes in the Power Plant

2021 ◽  
Vol 11 (11) ◽  
pp. 4990
Author(s):  
Boris Benderskiy ◽  
Peter Frankovský ◽  
Alena Chernova
Keyword(s):  
Numerical Simulation ◽  
Power Plant ◽  
Flow Structure ◽  
Power Plants ◽  
Control Volume ◽  
Conjugate Problem ◽  
Topological Features ◽  
Gas Dynamic ◽  
Calculation Results ◽  
Volume Method

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.

Improvement of the Operating Processes in Boiler Furnaces of TÉTs-21 with the Help of Numerical Simulation of Thermal Gas Dynamic Processes

2003 ◽  
Vol 37 (5) ◽  
pp. 297-301
Author(s):  
A. P. Tishin ◽  
I. T. Goryunov ◽  
Yu. L. Gus'kov ◽  
D. A. Barshak ◽  
G. V. Presnov ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Dynamic Processes ◽  
Gas Dynamic

Numerical Simulation of Heat Transfer in a Closed Two-Phase Thermosiphon

2017 ◽  
Vol 743 ◽  
pp. 449-453
Author(s):  
Vladimir Arkhipov ◽  
Alexander Nee ◽  
Lily Valieva
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Phase Transitions ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Mathematical Modelling ◽  
Three Dimensional ◽  
Two Phase ◽  
One Dimensional ◽  
The Finite Difference Method

This paper presents the results of mathematical modelling of three–dimensional heat transfer in a closed two-phase thermosyphon taking into account phase transitions. Three-dimensional conduction equation was solved by means of the finite difference method (FDM). Locally one-dimensional scheme of Samarskiy was used to approximate the differential equations. The effect of the thermosyphon height and temperature of its bottom lid on the temperature difference in the vapor section was shown.

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