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We propose a numerical method tailored to perform interface-resolved simulations of evaporating multicomponent two-phase flows. The novelty of the method lies in the use of Robin boundary conditions to couple the transport equations for the ...

• A method is proposed to perform interface-resolved simulations of evaporating multicomponent two-phase flows.
• Robin boundary conditions are used to couple the vaporized species and the same species in the liquid phase.
• A VoF ...

We propose high-resolution numerical schemes for two-phase compressible flow simulations to reproduce dynamically created gas/vapor-liquid interfaces with phase change. In the Godunov-type finite volume framework, suppressing numerical ...

• Hybrid BVD schemes are presented to compute gas/vapor interfaces in 6-equation model for multi-phase flows.
• Interfaces newly generated between liquid and vapor during the evaporation process are well-reproduced for the first time.
• ...

In this paper, the Edge-Based Interface Tracking (EBIT) method is extended to simulate multiphase flows with phase change. As a novel Front-Tracking method, the EBIT method binds interfacial markers to the Eulerian grid to achieve automatic ...

• The Edge-Based Interface Tracking (EBIT) method has been extended to simulate multiphase flows with phase change.
• The ghost fluid method is employed to suppress unphysical oscillations in the approximate projection method.
• The ...

This work proposes an innovative model for multicomponent phase change in interface-resolved simulations. The two-phase system is described by a geometric Volume-Of-Fluid (VOF) approach, and considers multiple components in non-isothermal ...

• Innovative model for multicomponent phase change in VOF, including Stefan flow and thermal effects.
• Novel approach to obtain the advection velocity, also suitable for static droplet evaporation with strong density ratio.
• Solution ...

This paper presents a model for simulating a two-phase flow involving cavitation and condensation, focusing on its application to turbopump flows. The model is derived by extending Kapila's approach, which incorporates thermal and free energy ...

• Modeling multiphase flow in rotating reference frame.
• A new Riemann problem to connect fixed and rotating flow regions.
• Phase change modeling by a relaxation method from pure phase to mixture.
• Cavitating flow in turbopumps ...

Vapor-liquid equilibrium (VLE) is a family of first-principled thermodynamic models for transcritical multiphase flows, which can accurately capture the phase transitions at high-pressure conditions that are difficult to deal with using other ...

• An in situ adaptive tabulation (ISAT) is developed to accelerate the calculation of vapor-liquid equilibrium (VLE) by 10-60 times with <1% error.
• The isoenergetic/isobaric-isochoric VLE solvers are accelerated using the ISAT-VLE method ...

The present work describes the development of a novel fully compressible solver for two-phase flows with liquid-vapour phase change. Phase change phenomena in compressible two-phase flows are driving mechanisms for a multitude of phenomena ...

• Solver to simulate phase change phenomena in two-phase compressible flows.
• Solver based on a semi-implicit projection method for compressible flows.
• Generalized cubic equations of state for liquid, vapour and saturation conditions.

We derive numerical stability conditions and analyze convergence to analytical nonlocal solutions of 1D peridynamic models for transient diffusion with and without a moving interface. In heat transfer or oxidation, for example, one often ...

• A general stability criterion for PD diffusion models, taking into account effect of BCs.
• Convergence to the exact PD solution with continuous and discontinuous ICs.
• Convergence rate is the same for continuous and discontinuous ICs,...

In this paper, a fully conservative sharp-interface method is developed for compressible multiphase flows with phase change. To enforce conservation, the coupling between two different phases is achieved via the interfacial fluxes, which are ...

• A fully conservative sharp-interface method is developed for compressible multiphase flows with phase change.
• A novel approximate Riemann solver is developed to solve the two-phase phase-change Riemann problem.
• The present Riemann ...

This paper presents a method for simulating evaporation in a compressible, interface-resolved framework appropriate for modeling problems of engineering interest. In order to achieve robustness and broad applicability, the method has been ...

• Conservative, sharp-interface model for compressible phase change.
• Discretely consistent interfacial transport with phase change.
• Mixed implicit/explicit time integration at sharp interface.

The eXtreme Mesh deformation approach (X-MESH) is a new paradigm to follow sharp interfaces without remeshing and without changing the mesh topology. Even though the mesh does not change its topology, it can follow interfaces that do change their ...

• We provide a revolutionary way to track physical interfaces.
• A unique mesh is used even for large changes of topologies of the interfaces.
• Large time steps are allowed.
• Interfaces are represented in a sharp manner.
• No ...

In this paper, we introduce a novel way to represent the interface for two-phase flows with phase change. We combine a level-set method with a Cartesian embedded boundary method and take advantage of both. This is part of an effort to ...

Free-surface flow coupled with solid-liquid phase change can be observed in many industrial applications, and it has a great influence on many industrial processes. In this paper, the Incompressible Smoothed Particle Hydrodynamics (...

• ISPH method is developed for free-surface flow coupled with solid-liquid phase change.

• Consistent phase-change procedure are proposed and investigated for any interface capturing method.

In this paper, the modeling of phase change in an incompressible two-phase flow solver is detailed without restricting the numerical methods to a specific interface capturing method. Starting from existing methodologies of the ...

This paper presents a parallel interface tracking approach for evolving geometry problems where both the computational domain and mesh are updated as dictated by the analysis. An interface-fitted conforming hybrid/mixed mesh with anisotropic ...

This work proposes a recent model for modelling the Phase Change (PC) phenomenon based on Cellular Automata (CA) of composite and heterogeneous materials with a complex geometry. We aim to describe the temperature distribution and phases (liquid/...

Designing efficient steel solidification methods could contribute to a sustainable future manufacturing. Current computational models, including physics-based and machine learning-based design, have not led to a robust solidification design. ...

We present a strategy for the numerical solution of convection-coupled phase-transition problems, with focus on solidification and melting. We solve for the temperature and flow fields over time. The position of the phase-change ...

• A strategy for solidification and melting processes with space-time finite elements.

Numerical modeling of phase change problems with convection is known to be computationally expensive. The main challenge comes from the coupling between Navier–Stokes and heat energy equations. In this paper, we develop a new scheme ...

In the present study, a consistent and conservative Phase-Field model is developed to study thermo-gas-liquid-solid flows with liquid-solid phase change. The proposed model is derived with the help of the consistency conditions and ...

• A Phase-Field model for multiphase flows with solidification/melting is developed.