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An interface captur...
An interface capturing method for liquid-gas flows at low-Mach number
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- Dalla Barba, Federico (författare)
- CISAS, University of Padova, Padova, Italy
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- Scapin, Nicolo (författare)
- KTH,Strömningsmekanik och Teknisk Akustik,SeRC - Swedish e-Science Research Centre,Linné Flow Center, FLOW
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- Demou, Andreas (författare)
- KTH,Skolan för teknikvetenskap (SCI),demou@kth.se
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- Rosti, Marco E. (författare)
- Complex Fluids and Flows Unit, Okinawa Institute of Science and Technology Graduate University (OIST), 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
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- Picano, Francesco (författare)
- Department of Industrial Engineering & CISAS, University of Padova, Padova, Italy
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- Brandt, Luca (författare)
- KTH,Linné Flow Center, FLOW,SeRC - Swedish e-Science Research Centre,Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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(creator_code:org_t)
- Elsevier Ltd, 2021
- 2021
- Engelska.
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Ingår i: Computers & Fluids. - : Elsevier Ltd. - 0045-7930 .- 1879-0747. ; 216
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Multiphase, compressible and viscous flows are of crucial importance in a wide range of scientific and engineering problems. Despite the large effort paid in the last decades to develop accurate and efficient numerical techniques to address this kind of problems, current models need to be further improved to address realistic applications. In this context, we propose a numerical approach to the simulation of multiphase, viscous flows where a compressible and an incompressible phase interact in the low-Mach number regime. In this frame, acoustics are neglected but large density variations of the compressible phase can be accounted for as well as heat transfer, convection and diffusion processes. The problem is addressed in a fully Eulerian framework exploiting a low-Mach number asymptotic expansion of the Navier-Stokes equations. A Volume of Fluid approach (VOF) is used to capture the liquid-gas interface, built on top of a massive parallel solver, second order accurate both in time and space. The second-order-pressure term is treated implicitly and the resulting pressure equation is solved with the eigenexpansion method employing a robust and novel formulation. We provide a detailed and complete description of the theoretical approach together with information about the numerical technique and implementation details. Results of benchmarking tests are provided for five different test cases.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- Compressible multi-phase flows
- Low-Mach number asymptotic expansions
- Pressure-correction methods
- Volume-of-Fluid method
- Aerodynamics
- Heat transfer
- Incompressible flow
- Liquefied gases
- Navier Stokes equations
- Numerical methods
- Phase interfaces
- Viscous flow
- Asymptotic expansion
- Convection and diffusion
- Engineering problems
- Interface-capturing method
- Liquid gas interface
- Numerical techniques
- Realistic applications
- Theoretical approach
- Mach number
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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