Browsing by Author "Dimas, A. A."
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Article
Coherent structures in oscillating turbulent boundary layers over a fixed rippled bed
Grigoriadis, D. G. E.; Balaras, E.; Dimas, A. A. (2013)Coherent structures generated by oscillating turbulent boundary layers with or without a unidirectional current over a fixed, rippled bed are presented. The effect of ripple height and current intensity on the characteristics ...
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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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Article
Large-eddy simulation of wave turbulent boundary layer over rippled bed
Grigoriadis, D. G. E.; Dimas, A. A.; Balaras, E. (2012)Large-eddy simulation (LES) of turbulent boundary layer induced by external oscillatory flow without or with a unidirectional component over rippled bottom is presented. These flows represent prototype turbulent flows of ...
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Article
Large-eddy simulations of unidirectional water flow over dunes
Grigoriadis, D. G. E.; Balaras, E.; Dimas, A. A. (2009)The unidirectional, subcritical flow over fixed dunes is studied numerically using large-eddy simulation, while the immersed boundary method is implemented to incorporate the bed geometry. Results are presented for a typical ...