| Giant Fluctuations Induced by Thermal Diffusion in Complex Liquids | |
Vailati A1; Baaske P2; Bataller H3; Bolis S4; Braibanti M5; Carpineti M1; Cerbino R6; Croccolo F3; Dewandel JL4; Donev A7; Garcia-Fernandez L3,13; Giavazzi F6; Haslinger R2; Hens S8; Knauer M2; Koehler W9; Kufner E10; Ortiz de Zarate JM11; Peeters J8; Schwarz CJ10; Silkina I10; Xu SH(徐升华)12 ; Zapf D9
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| Source Publication | MICROGRAVITY SCIENCE AND TECHNOLOGY
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| 2020-07-14 | |
| Pages | 15 |
| ISSN | 0938-0108 |
| Abstract | The GRADFLEX experiment of ESA has shown that under microgravity conditions a stationary thermodiffusion process is accompanied by giant non-equilibrium fluctuations with size as large as the size of the sample. In the presence of small concentration gradients, the features of the non-equilibrium fluctuations can be described by means of linearized hydrodynamics. However, the linear models are not suitable to describe most cases of applicative interest, such as fluctuations induced by large gradients and under non-stationary conditions. Moreover, presently the investigation of non-equilibrium fluctuations has mainly involved single component fluids and binary mixtures, but recently transport processes in ternary mixtures have attracted increasing interest due to the experiments performed on the International Space Station in the framework of the DCMIX project of ESA. The Giant Fluctuations (NEUF-DIX) project of ESA will investigate non-equilibrium fluctuations during diffusive processes occurring in complex multi-component mixtures, where one of the components is a macromolecule, such as a polymer, a colloid or a protein. Important objectives will be the exploration of the features of the fluctuations under non-ideal conditions, such as large gradients, transient processes, and concentrated samples, and the understanding of how the fluctuations affect the interactions between macromolecules. The project involves the development of a dedicated facility, consisting of an array of shadowgraph optical instruments working in parallel, each one equipped with a thermal gradient cell. Here we outline the design concept of the facility and the results of performance tests performed on a breadboard to evaluate the suitability of the designed instrument to carry out scientific measurements of non-equilibrium concentration fluctuations in space. |
| Keyword | Thermodiffusion Microgravity Non-equilibrium fluctuations Shadowgraph Transport properties |
| DOI | 10.1007/s12217-020-09815-x |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000548757300001 |
| WOS Keyword | NONEQUILIBRIUM FLUCTUATIONS ; MIXTURES ; THERMODIFFUSION ; POLYSTYRENE ; SEMIDILUTE ; SCHLIEREN ; SORET |
| WOS Research Area | Engineering ; Thermodynamics ; Mechanics |
| WOS Subject | Engineering, Aerospace ; Thermodynamics ; Mechanics |
| Funding Organization | Universita degli Studi di Milano within the CRUI-CARE Agreement |
| Classification | 二类 |
| Ranking | 5+ |
| Contributor | Vailati, Alberto |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/84748 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Univ Milan, Dipartimento Fis A Pontremoli, Milan, Italy; 2.NanoTemper Technol GmbH, Munich, Germany; 3.Univ Pau & Pays Adour, E2S UPPA, CNRS, TOTAL LFCR,UMR5150, Anglet, France; 4.Lambda X, Nivelles, Belgium; 5.HE Space Operat BV ESA, NL-2200 AG Noordwijk, Netherlands; 6.Univ Milan, Dipartimento Biotecnol Med & Med Traslaz, Segrate, MI, Italy; 7.NYU, Courant Inst Math Sci, New York, NY USA; 8.Qinetiq Space, Kruibeke, Belgium; 9.Univ Bayreuth, Phys Inst, Bayreuth, Germany; 10.ESA ESTEC, Noordwijk, Netherlands; 11.Univ Complutense Madrid, Dept Estruct Mat Fis Term & Elect, Fac Ciencias Fis, Madrid, Spain; 12.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China; 13.Ctr Natl Etud Spatiales, Paris, France |
| Recommended Citation GB/T 7714 | Vailati A,Baaske P,Bataller H,et al. Giant Fluctuations Induced by Thermal Diffusion in Complex Liquids[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2020:15.Rp_Au:Vailati, Alberto |
| APA | Vailati A.,Baaske P.,Bataller H.,Bolis S.,Braibanti M.,...&Zapf D.(2020).Giant Fluctuations Induced by Thermal Diffusion in Complex Liquids.MICROGRAVITY SCIENCE AND TECHNOLOGY,15. |
| MLA | Vailati A,et al."Giant Fluctuations Induced by Thermal Diffusion in Complex Liquids".MICROGRAVITY SCIENCE AND TECHNOLOGY (2020):15. |
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| Jp2020192.pdf（1638KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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