Detail publikace
COMPUTATIONAL MODELLING OF ADDITIONAL EFFECTS DURING FLUID FILM INTERACTION WITH STRUCTURES
MALENOVSKÝ, E. POCHYLÝ, F.
Český název
COMPUTATIONAL MODELLING OF ADDITIONAL EFFECTS DURING FLUID FILM INTERACTION WITH STRUCTURES
Anglický název
COMPUTATIONAL MODELLING OF ADDITIONAL EFFECTS DURING FLUID FILM INTERACTION WITH STRUCTURES
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
This contribution is focused on the interaction of a rigid body with a thin fluid layer. Some technical applications are for example: long and short, cavitating or noncavitating journal bearings. The governing equations for this analysis are the Navier Stokes (NS) eq., and the continuity and boundary conditions. The theoretical basis of a new approach to the analysis of dynamic behavior of nonstationary motion in time and frequency domains is presented. This totally new approach is based on separating the shaft and liquid layer from each other. It is possible to establish, using this separation, a database of additional effects of fluid film for a given one shaft parameter, which can be the shaft center position. The Bézier body is used for approximating the geometrical configuration as well as the velocities and pressures. The method of control volumes is used for the solution. Curvilinear co-ordinates are used for describing the geometrical configuration and perpendicular co-ordinates are used for solving velocities and pressures.
Český abstrakt
V příspěvku je uveden teoretický přístup k analýze a přístup k výpočtovému modelování dynamických vlastností tenkých tekutinových vrstev. Je uvedeno porovnání řešení dle dvou přístupů. První přístup vychází z transformace, která má tvar konvolutorního integrálu. Pokud je tekutina stlačitelná, má tento přístup značné omezení. V takovém případě musí být pro separování pohybu tělesa a tekutiny použita jiná transformace. V tomto případě nemá transformace tvar konvolutorního integrálu. Ze závislostí komplexní dynamické síly na frekvenci buzení lze stanovit tenzory přídavných účinků
Anglický abstrakt
This contribution is focused on the interaction of a rigid body with a thin fluid layer. Some technical applications are for example: long and short, cavitating or noncavitating journal bearings. The governing equations for this analysis are the Navier Stokes (NS) eq., and the continuity and boundary conditions. The theoretical basis of a new approach to the analysis of dynamic behavior of nonstationary motion in time and frequency domains is presented. This totally new approach is based on separating the shaft and liquid layer from each other. It is possible to establish, using this separation, a database of additional effects of fluid film for a given one shaft parameter, which can be the shaft center position. The Bézier body is used for approximating the geometrical configuration as well as the velocities and pressures. The method of control volumes is used for the solution. Curvilinear co-ordinates are used for describing the geometrical configuration and perpendicular co-ordinates are used for solving velocities and pressures.
Klíčová slova česky
Navier Stokes eq. computational modelling, fluid film interaction
Klíčová slova anglicky
Navier Stokes eq. computational modelling, fluid film interaction
Rok RIV
2004
Vydáno
01.07.2004
Místo
Paris
ISBN
1-86058-447-0
Kniha
Proceedings of the 8th international conference on flow-induced vibration
Číslo edice
1
Počet stran
10
BIBTEX
@inproceedings{BUT12169,
author="Eduard {Malenovský} and František {Pochylý},
title="COMPUTATIONAL MODELLING OF ADDITIONAL EFFECTS DURING FLUID FILM INTERACTION WITH STRUCTURES",
booktitle="Proceedings of the 8th international conference on flow-induced vibration",
year="2004",
month="July",
address="Paris",
isbn="1-86058-447-0"
}