3.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of OsloNO153 papers
- Centre National de la Recherche ScientifiqueFR139 papers
- KTH Royal Institute of TechnologySE92 papers
- SINTEFNO92 papers
- Johannes Gutenberg University MainzDE57 papers
- Delft University of TechnologyNL56 papers
- University of CopenhagenDK55 papers
- ETH ZurichCH46 papers
- Tomsk State Pedagogical UniversityRU44 papers
- University of CambridgeGB41 papers
- Stockholm UniversitySE40 papers
- Eindhoven University of TechnologyNL38 papers
6 papers · 2 filters
Theory of microdroplet and microbubble deformation by Gaussian laser beam
Simen Å Ellingsen
The theory for linear deformations of fluid microparticles in a laser beam of Gaussian profile is presented, when the beam focus is at the particle center as in optical trapping. T…
Effective Rheology of Bubbles Moving in a Capillary Tube
Santanu Sinha, Alex Hansen, Dick Bedeaux +1
We calculate the average volumetric flux versus pressure drop of bubbles moving in a single capillary tube with varying diameter, finding a square-root relation from mapping the fl…
Mixing layer between two co-current Taylor-Couette flows
Simen Å. Ellingsen, Helge I. Andersson
A new mixing layer can be generated if the rotation of either of the two cylinders in a Taylor--Couette apparatus varies discontinuously along the symmetry axis. The mixing zone be…
A bilateral shear layer between two parallel Couette flows
Vagesh D. Narasimhamurthy, Simen Å. Ellingsen, Helge I. Andersson
We consider a shear layer of a kind not previously studied to our knowledge. Contrary to the classical free shear layer, the width of the shear zone does not vary in the streamwise…
Local Wettability Reversal during Steady-State Two-Phase Flow in Porous Media
Santanu Sinha, Morten Grøva, Torgeir Bryge Ødegården +2
We study the effect of local wettability reversal on remobilizing immobile fluid clusters in steady-state two-phase flow in porous media. We consider a two dimensional network mode…
Effective Rheology of Immiscible Two-Phase Flow in Porous Media
Santanu Sinha, Alex Hansen
We demonstrate through numerical simulations and a mean field calculation that immiscible two-phase flow in a porous medium behaves effectively as a Bingham viscoplastic fluid. Thi…