Squeeze flow modeling with the use of micropolar fluid theory

• Autorzy: Kucaba-Piętal A.

Identyfikatory

DOI

10.1515/bpasts-2017-0100

• Języki publikacji: EN

Abstrakty

EN

The aim of this paper is to study the applicability of micropolar fluid theory to modeling and to calculating tribological squeeze flow characteristics depending on the geometrical dimension of the flow field. Based on analytical solutions in the lubrication regime of squeeze flow between parallel plates, calculations of the load capacity and time required to squeeze the film are performed and compared – as a function of the distance between the plates – for both fluid models: the micropolar model and the Newtonian model. In particular, maximum distance between the plates for which the micropolar effects of the fluid become significant will be established. Values of rheological constants of the fluids, both those experimentally determined and predicted by means of using equilibrium molecular dynamics, have been used in the calculations. The same analysis was performed as a function of dimensionless microstructural parameters.

Słowa kluczowe

EN

micropolar fluid; squeeze flow; MEMS; tribology; non-Newtonian fluid

PL

płyn mikropolarny; MEMS; tribologia; ciecz nienewtonowska

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2017
• Tom: Vol. 65, nr 6
• Strony: 927--933
• Opis fizyczny: Bibliogr. 28 poz., rys., wykr., tab.

Twórcy

autor

Kucaba-Piętal A.

• Department of Fluid Mechanics, Rzeszów University of Technology, 8 Powstańców Warszawy St., 35-959 Rzeszów, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).