Friction, free axes of rotation and entropy

Alexander Kazachkov; Victor Multanen; Viktor Danchuk; Mark Frenkel; Edward Bormashenko

doi:10.3390/e19030123

Friction, free axes of rotation and entropy

Alexander Kazachkov, Victor Multanen, Viktor Danchuk, Mark Frenkel, Edward Bormashenko

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Friction forces acting on rotators may promote their alignment and therefore eliminate degrees of freedom in their movement. The alignment of rotators by friction force was shown by experiments performed with different spinners, demonstrating how friction generates negentropy in a system of rotators. A gas of rigid rotators influenced by friction force is considered. The orientational negentropy generated by a friction force was estimated with the Sackur-Tetrode equation. The minimal change in total entropy of a system of rotators, corresponding to their eventual alignment, decreases with temperature. The reported effect may be of primary importance for the phase equilibrium and motion of ubiquitous colloidal and granular systems.

Original language	English
Article number	123
Journal	Entropy
Volume	19
Issue number	3
DOIs	https://doi.org/10.3390/e19030123
State	Published - 17 Mar 2017

Keywords

Entropy
Free axis of rotation
Friction
Orientational negentropy
Rotators

Access to Document

10.3390/e19030123

Cite this

@article{b19095740fa343b8b14c1eb1e5b05030,

title = "Friction, free axes of rotation and entropy",

abstract = "Friction forces acting on rotators may promote their alignment and therefore eliminate degrees of freedom in their movement. The alignment of rotators by friction force was shown by experiments performed with different spinners, demonstrating how friction generates negentropy in a system of rotators. A gas of rigid rotators influenced by friction force is considered. The orientational negentropy generated by a friction force was estimated with the Sackur-Tetrode equation. The minimal change in total entropy of a system of rotators, corresponding to their eventual alignment, decreases with temperature. The reported effect may be of primary importance for the phase equilibrium and motion of ubiquitous colloidal and granular systems.",

keywords = "Entropy, Free axis of rotation, Friction, Orientational negentropy, Rotators",

author = "Alexander Kazachkov and Victor Multanen and Viktor Danchuk and Mark Frenkel and Edward Bormashenko",

note = "Publisher Copyright: {\textcopyright} 2017 by the authors.",

year = "2017",

month = mar,

day = "17",

doi = "10.3390/e19030123",

language = "אנגלית",

volume = "19",

journal = "Entropy",

issn = "1099-4300",

publisher = "MDPI Multidisciplinary Digital Publishing Institute",

number = "3",

}

TY - JOUR

T1 - Friction, free axes of rotation and entropy

AU - Kazachkov, Alexander

AU - Multanen, Victor

AU - Danchuk, Viktor

AU - Frenkel, Mark

AU - Bormashenko, Edward

PY - 2017/3/17

Y1 - 2017/3/17

N2 - Friction forces acting on rotators may promote their alignment and therefore eliminate degrees of freedom in their movement. The alignment of rotators by friction force was shown by experiments performed with different spinners, demonstrating how friction generates negentropy in a system of rotators. A gas of rigid rotators influenced by friction force is considered. The orientational negentropy generated by a friction force was estimated with the Sackur-Tetrode equation. The minimal change in total entropy of a system of rotators, corresponding to their eventual alignment, decreases with temperature. The reported effect may be of primary importance for the phase equilibrium and motion of ubiquitous colloidal and granular systems.

AB - Friction forces acting on rotators may promote their alignment and therefore eliminate degrees of freedom in their movement. The alignment of rotators by friction force was shown by experiments performed with different spinners, demonstrating how friction generates negentropy in a system of rotators. A gas of rigid rotators influenced by friction force is considered. The orientational negentropy generated by a friction force was estimated with the Sackur-Tetrode equation. The minimal change in total entropy of a system of rotators, corresponding to their eventual alignment, decreases with temperature. The reported effect may be of primary importance for the phase equilibrium and motion of ubiquitous colloidal and granular systems.

KW - Entropy

KW - Free axis of rotation

KW - Friction

KW - Orientational negentropy

KW - Rotators

UR - http://www.scopus.com/inward/record.url?scp=85024391486&partnerID=8YFLogxK

U2 - 10.3390/e19030123

DO - 10.3390/e19030123

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:85024391486

SN - 1099-4300

VL - 19

JO - Entropy

JF - Entropy

IS - 3

M1 - 123

ER -

Friction, free axes of rotation and entropy

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this