scholarly journals Stability of a directional Marangoni flow

Soft Matter ◽  
2020 ◽  
Vol 16 (38) ◽  
pp. 8933-8939
Author(s):  
Corentin Tregouet ◽  
Arnaud Saint-Jalmes
Keyword(s):  
Marangoni Flow ◽  
Inertial Surface ◽  
Soluble Surfactants ◽  
Surface Jet

When a Marangoni flow of soluble surfactants is confined laterally, the flow forms an inertial surface jet which shows meander instabilities. The morphology and the destabilization of this surface jet are analyzed experimentally and theoretically.

Surface treatment of parts in aircraft engineering

2020 ◽  
pp. 68-72
Author(s):  
S.N. Polyanskiy ◽  
S.V. Butakov ◽  
I.S. Olkov ◽  
V.A. Aleksandrov
Keyword(s):  
Surface Treatment ◽  
Aircraft Engine ◽  
Abrasive Machining ◽  
Coating Application ◽  
Aircraft Engineering ◽  
Surface Jet ◽  
Blade Coating

The effectiveness of using jet-abrasive machining of aircraft engine parts is shown. The results of this treatment are shown in order to prepare surfaces for coating application and repair. Keywords: surface, jet-abrasive machining, abrasive, roughness, motor blade, coating. [email protected]

scholarly journals Solutocapillary Marangoni flow induced in a waterbody by a solute source

2021 ◽  
Vol 922 ◽  
Author(s):  
Islam Benouaguef ◽  
Naga Musunuri ◽  
Edison C. Amah ◽  
Denis Blackmore ◽  
Ian S. Fischer ◽  
...  
Keyword(s):  
Marangoni Flow ◽  
Solute Source

Abstract

scholarly journals Particle Accumulation Structures in a 5 cSt Silicone Oil Liquid Bridge: New Data for the Preparation of the JEREMI Experiment

2021 ◽  
Vol 33 (2) ◽  
Author(s):  
Paolo Capobianchi ◽  
Marcello Lappa
Keyword(s):  
Liquid Bridge ◽  
Silicone Oil ◽  
Fluid Dynamic ◽  
Solid Particles ◽  
Critical Threshold ◽  
Marangoni Flow ◽  
Disk Radius ◽  
Carrier Fluid ◽  
Aspect Ratios ◽  
Time Periodic

AbstractSystems of solid particles in suspension driven by a time-periodic flow tend to create structures in the carrier fluid that are reminiscent of highly regular geometrical items. Within such a line of inquiry, the present study provides numerical results in support of the space experiments JEREMI (Japanese and European Research Experiment on Marangoni flow Instabilities) planned for execution onboard the International Space Station. The problem is tackled by solving the unsteady non-linear governing equations for the same conditions that will be established in space (microgravity, 5 cSt silicone oil and different aspect ratios of the liquid bridge). The results reveal that for a fixed supporting disk radius, the dynamics are deeply influenced by the height of the liquid column. In addition to its expected link with the critical threshold for the onset of instability (which makes Marangoni flow time-periodic), this geometrical parameter can have a significant impact on the emerging waveform and therefore the topology of particle structures. While for shallow liquid bridges, pulsating flows are the preferred mode of convection, for tall floating columns the dominant outcome is represented by rotating fluid-dynamic disturbance. In the former situation, particles self-organize in circular sectors bounded internally by regions of particle depletion, whereas in the latter case, particles are forced to accumulate in a spiral-like structure. The properties of some of these particle attractors have rarely been observed in earlier studies concerned with fluids characterized by smaller values of the Prandtl number.

scholarly journals Drag on a spherical particle at the air–liquid interface: Interplay between compressibility, Marangoni flow, and surface viscosities

2021 ◽  
Vol 33 (6) ◽  
pp. 062103
Author(s):  
Meisam Pourali ◽  
Martin Kröger ◽  
Jan Vermant ◽  
Patrick D. Anderson ◽  
Nick O. Jaensson
Keyword(s):  
Spherical Particle ◽  
Liquid Interface ◽  
Marangoni Flow ◽  
Air Liquid Interface

Marangoni-flow-induced partial coalescence of a droplet on a liquid/air interface

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Kai Sun ◽  
Peng Zhang ◽  
Zhizhao Che ◽  
Tianyou Wang
Keyword(s):  
Marangoni Flow ◽  
Partial Coalescence ◽  
Air Interface

scholarly journals Enhanced interfacial deformation in a Marangoni flow: A measure of the dynamical surface tension

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Rodrigo Leite Pinto ◽  
Sébastien Le Roux ◽  
Isabelle Cantat ◽  
Arnaud Saint-Jalmes
Keyword(s):  
Surface Tension ◽  
Marangoni Flow ◽  
Interfacial Deformation
Sign in / Sign up

Export Citation Format

Share Document