On the V2-Based Turbulence Model for Free-Stream and Wall-Bounded High-Speed Compressible Flows

Молчанов, А. М.; Yanyshev, D. S.; Bykov, L. V.; Platonov, I. M.

doi:10.1615/interjfluidmechres.2018025734

Cited by 2 publications

(1 citation statement)

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“…Computation mesh had 1035253 cells. Several test problems from the previous work of our team (see [9] and [10]) were considered. The obtained strong scaling results were similar to the one shown in figure 4.…”

Section: Strong Scaling Measurementsmentioning

confidence: 99%

Utilization of parallel computing for mathematical modeling of high-enthalpy flows

Gribinenko¹,

Молчанов²,

Siluyanova³

et al. 2022

J. Phys.: Conf. Ser.

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The complexity of problems in gas dynamics is increasing from year to year, which makes sequential computational codes more and more inadequate and brings the importance of creating their parallel implementations. The problem of building the parallel implementations is not simple, especially in case of parallelization of the existing sequential codes. In this paper we present a method of simulation of high-enthalpy flows and describe the peculiarities of its parallel implementation utilizing PETSc library, which gives a wide variety of tools to simplify creation of parallel codes. The results for calculation of OREX reentry module as well as analysis of scalability of the parallel code implementation are given.

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Section: Strong Scaling Measurementsmentioning

confidence: 99%

Utilization of parallel computing for mathematical modeling of high-enthalpy flows

Gribinenko¹,

Молчанов²,

Siluyanova³

et al. 2022

J. Phys.: Conf. Ser.

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Method of the numerical modelling of unstationary processes in the combustion chamber of a gas turbine engine

Savchuk

Yakovlev

2021

J. Phys.: Conf. Ser.

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Estimation of the stability margins of combustion processes in the combustion chamber of a gas turbine engine is a vital task of current subsonic and supersonic propulsion engineering and this article describes the approach to its Computational Fluid Dynamics simulation. The aim of the work is to create and verify a methodology for assessing the stability regimes of combustion processes in the combustion chamber of a gas turbine engine based on an artificial simulation of the excitation of non-stationary processes in the temperature-pressure parameters using “ANSYS Fluent”. The further comparison of the computed results and the real data of the physical experiment in the model device will take place to verify the method. During the research this methodology and a software product will be developed for computing the characteristics of the combustion processes before and after the excitation of the artificial unstable process. This technique, when verified, will allow to clarify the instability limits for specific operating modes (engine stall, flame suppression, lean flameout) of existing and projected gas turbine engines. The obtained numerical results allow us to make an assumption about the fundamental possibility of obtaining convergent solutions in close according with the future experimental data.

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On the V2-Based Turbulence Model for Free-Stream and Wall-Bounded High-Speed Compressible Flows

Cited by 2 publications

References 0 publications

Utilization of parallel computing for mathematical modeling of high-enthalpy flows

Utilization of parallel computing for mathematical modeling of high-enthalpy flows

Method of the numerical modelling of unstationary processes in the combustion chamber of a gas turbine engine

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