A mass-preserving interface-correction level set/ghost fluid method for modeling of three-dimensional boiling flows

Ningegowda, B.M.; Ge, Zhouyang; Lupo, Giandomenico; Brandt, Luca; Duwig, Christophe

doi:10.1016/j.ijheatmasstransfer.2020.120382

Cited by 18 publications

(3 citation statements)

References 106 publications

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“…Among these, diffuse interface models [22][23][24][25][26] are being developed with various levels of sophistication to account for unresolved mesoscale mixing, even if many challenges are still present regarding the validity of these closures. To investigate the details of separated flows, Eulerian interface capturing methods, such as level set (LS) [27], Volume of Fluid (VOF) [28], and Coupled Level Set and Volume of Fluid (CLSVOF) [29][30][31][32][33], have been progressively developed and improved, achieving nowadays high accuracy in mass conservation, surface tension force evaluation and phase change. However, all these models become numerically challenging and computationally expensive when large thermophysical properties variations are involved.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Transcritical and Supercritical Fuel Injections Using a Multi-Component Two-Phase Flow Model

et al. 2020

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In the present numerical study, implicit large eddy simulations (LES) of non-reacting multi-components mixing processes of cryogenic nitrogen and n-dodecane fuel injections under transcritical and supercritical conditions are carried out, using a modified reacting flow solver, originally available in the open source software OpenFOAM®. To this end, the Peng-Robinson (PR) cubic equation of state (EOS) is considered and the solver is modified to account for the real-fluid thermodynamics. At high pressure conditions, the variable transport properties such as dynamic viscosity and thermal conductivity are accurately computed using the Chung transport model. To deal with the multicomponent species mixing, molar averaged homogeneous classical mixing rules are used. For the velocity–pressure coupling, a PIMPLE based compressible algorithm is employed. For both cryogenic and non-cryogenic fuel injections, qualitative and quantitative analyses are performed, and the results show significant effects of the chamber pressure on the mixing processes and entrainment rates. The capability of the proposed numerical model to handle multicomponent species mixing with real-fluid thermophysical properties is demonstrated, in both supercritical and transcritical regimes.

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Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Transcritical and Supercritical Fuel Injections Using a Multi-Component Two-Phase Flow Model

et al. 2020

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“…The one-fluid method is sometimes termed direct numerical simulation for a two-phase system, as no assumptions or models for the interface shape are employed [16,17]. The one-fluid methods are classified into: sharp interface, such as Level-Set (LS) [18] and Volume-of-Fluid (VoF) [19,20], and diffuse interface, such as phase-field [21]. The one-fluid methods are applied for the simulation of a single vapor bubble condensation widely, but the main challenge in such numerical simulations is a reliable and physical computation of the mass transfer through the interface.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Single Vapor Bubble Condensation with Sharp Interface Mass Transfer Model

Samkhaniani

Stroh

2022

Thermo

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Pure numerical simulation of phase-change phenomena such as boiling and condensation is challenging, as there is no universal model to calculate the transferred mass in all configurations. Among the existing models, the sharp interface model (Fourier model) seems to be a promising solution. In this study, we investigate the limitation of this model via a comparison of the numerical results with the analytical solution and experimental data. Our study confirms the great importance of the initial thermal boundary layer prescription for a simulation of single bubble condensation. Additionally, we derive a semi-analytical correlation based on energy conservation to estimate the condensing bubble lifetime. This correlation declares that the initial diameter, subcooled temperature, and vapor thermophysical properties determine how long a bubble lasts. The simulations are carried out within the OpenFOAM framework using the VoF method to capture the interface between phases. Our investigation demonstrates that calculation of the curvature of interface with the Contour-Based Reconstruction (CBR) method can suppress the parasitic current up to one order.

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“…Extensions of LS methods have been reported in [47,50,48,49,44]. [23,35,54] combine LS method and ghost-fluid approach [25] to incorporate jump conditions in two-phase flow with phase change. Further efforts in the framework of coupled VoF-LS methods were reported in [36,56,33].…”

Section: Introductionmentioning

confidence: 99%

Unstructured Level-Set Method For Saturated Liquid-Vapor Phase Change

Balcázar¹,

Rigola²,

Oliva³

2021

14th WCCM-ECCOMAS Congress

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A novel conservative level-set method for saturated liquid-vapor phase change on unstructured meshes is introduced. Transport equations are discretized by the finite-volume method on collocated unstructured grids. Mass transfer promoted by thermal phase change is computed using the energy jump condition at the interface, as a function of the temperature gradient. The fractional-step projection method is used for solving the pressure-velocity coupling, convective terms are discretized by unstructured flux-limiter schemes, central difference scheme is used for discretization of diffusive terms. Verification and validation cases have been undertaken to prove the accuracy and robustness of the numerical methods, including simulation of the Stefan problem, and film boiling on a cylindrical surface. Excellent agreement between numerical solutions against analytical solution and empirical correlations from the literature is reported.

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A mass-preserving interface-correction level set/ghost fluid method for modeling of three-dimensional boiling flows

Cited by 18 publications

References 106 publications

Numerical Modeling of Transcritical and Supercritical Fuel Injections Using a Multi-Component Two-Phase Flow Model

Numerical Modeling of Transcritical and Supercritical Fuel Injections Using a Multi-Component Two-Phase Flow Model

Simulation of Single Vapor Bubble Condensation with Sharp Interface Mass Transfer Model

Unstructured Level-Set Method For Saturated Liquid-Vapor Phase Change

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