Browsing by Author "Frantzis, C."
Now showing items 1-7 of 7
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Conference Object
Development of an efficient two-phase 3D numerical wave flume
Frantzis, C.; Grigoriadis, D. G. E. (Society of Petroleum Engineers, 2017)In the present study an efficient two-phase 3D numerical wave flume was developed, tested and validated. The most important advantage over conventional numerical wave flumes is the use of a constant coefficient Poisson ...
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Article
An efficient method for two-fluid incompressible flows appropriate for the immersed boundary method
Frantzis, C.; Grigoriadis, Dimokratis G. E. (2019)The numerical simulation of two-fluid flows with sharp interfaces is a challenging field, not only because of their complicated physical mechanisms, but also because of increased computational cost. An efficient and robust ...
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Article
An efficient Navier-Stokes based numerical wave tank using fast Poisson solvers and the immersed boundary method
Frantzis, C.; Grigoriadis, Dimokratis G. E.; Dimas, A. A. (2020)An efficient numerical model for wave induced flows and their interaction with impermeable coastal structures, is presented. Using recent developments in the field of two-fluid (water/air) Navier-Stokes (NS) simulations, ...
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Conference Object
Efficient Pressure-Correction Method for Interfacial Tracking Appropriate for the Immersed Boundary Method
Frantzis, C.; Grigoriadis, Dimokratis G. E. (Springer International Publishing, 2019)Solving the Navier–Stokes equations to simulate incompressible two-fluid flows with interfaces, is still a developing scientific field. One of the main challenges, is the reduction of the computational cost which is still ...
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Article
A low-Mach methodology for efficient direct numerical simulations of variable property thermally driven flows
Demou, A. D.; Frantzis, C.; Grigoriadis, Dimoktratis G. E. (2019)Thermally driven flows can be approximated as constant property flows only when temperature differences are relatively small. In that case, the Oberbeck-Boussinesq approximation holds and the set of governing equations is ...
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Article
A numerical methodology for efficient simulations of non-Oberbeck-Boussinesq flows
Demou, A. D.; Frantzis, C.; Grigoriadis, Dimokratis G. E. (2018)The Oberbeck-Boussinesq (OB) form of the Navier-Stokes equations can provide reliable solutions only for problems where the density differences are relatively small and all other material properties can be considered ...
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Article
A numerical methodology for efficient simulations of non-Oberbeck-Boussinesq flows
Demou, A. D.; Frantzis, C.; Grigoriadis, D. G. E. (2018)The Oberbeck-Boussinesq (OB) form of the Navier-Stokes equations can provide reliable solutions only for problems where the density differences are relatively small and all other material properties can be considered ...