Sharp interface methods for simulation and analysis of free surface flows with singularities: Breakup and coalescence

CR Anthony, H Wee, V Garg, SS Thete… - Annual Review of …, 2023 - annualreviews.org
A common feature of many free surface flows—drop/bubble breakup or coalescence and
film/sheet rupture—is the occurrence of hydrodynamic singularities. Accurately computing …

Quantifying the non-Newtonian effects of pulsatile hemodynamics in tubes

K Giannokostas, D Photeinos, Y Dimakopoulos… - Journal of Non …, 2021 - Elsevier
We investigate in silico the pulsatile blood flow in straight, rigid tubes using an elasto-
viscoplastic, constitutive model coupled with thixotropy (TEVP)(Varchanis et al., 2019; …

Shear stress and intravascular pressure effects on vascular dynamics: Two-phase blood flow in elastic microvessels accounting for the passive stresses

K Giannokostas, Y Dimakopoulos… - … and Modeling in …, 2022 - Springer
We study the steady hemodynamics in physiological elastic microvessels proposing an
advanced fluid–structure interaction model. The arteriolar tissue is modeled as a two-layer …

Steady three-dimensional patterns in gravity-driven film flow down an inclined sinusoidal bottom contour

B Al-Shamaa, T Kahraman, A Wierschem - Physics of Fluids, 2023 - pubs.aip.org
We experimentally studied gravity-driven film flow in an inclined corrugated channel.
Beyond a critical Reynolds number, three-dimensional patterns appear. We identified two …

Advanced constitutive modeling of the thixotropic elasto-visco-plastic behavior of blood: steady-state blood flow in microtubes

K Giannokostas, Y Dimakopoulos, A Anayiotos… - Materials, 2021 - mdpi.com
The present work focuses on the in-silico investigation of the steady-state blood flow in
straight microtubes, incorporating advanced constitutive modeling for human blood and …

Effect of recessed chuck slits on the edge buildup in spin coating for rectangular substrates

Q Liu, P Zhou - Progress in Organic Coatings, 2025 - Elsevier
A recessed chuck is widely used in spin coating of rectangular substrates to reduce the air
turbulence caused by the substrate edges. The slit between the substrate side and the …

Flow of viscoelastic films over grooved surfaces with partial wetting

D Pettas, G Karapetsas, A Syrakos… - Journal of Fluid …, 2024 - cambridge.org
We consider the steady flow of a viscoelastic film over an inclined plane featuring periodic
trenches normal to the main flow direction. The trenches have a square cross-section and …

Three-Dimensional Flow Behavior of a Falling Film on Horizontal Tubes: A Comparative Study on Smooth and Finned Tubes

C Cao, L Xie, Y Du, X Zhu, W Zhang - Industrial & Engineering …, 2022 - ACS Publications
In this work, the two-phase flow behavior of a falling film on horizontal smooth and finned
tube systems was investigated and compared using a three-dimensional computational fluid …

Stability analysis of viscoelastic film flows over an inclined substrate with rectangular trenches

A Marousis, D Pettas, G Karapetsas… - Journal of Fluid …, 2021 - cambridge.org
We consider the hydrodynamic stability of viscoelastic films flowing over inclined structured
substrates with rectangular trenches. This topography allows investigating independently …

Modeling the squeeze flow of droplet over a step

A Mehboudi, S Singhal, SV Sreenivasan - Physics of Fluids, 2022 - pubs.aip.org
In this paper, we study the squeeze flow of a droplet confined between two plates in the
presence of a step. Understanding this fluid mechanics problem is of the utmost importance …