Punčochářová, Petra - Search Results - Digital Repository

guest :: login Digital Repository
		Search		Submit		Help		About

Home > Search Results: Punčochářová, Petra

Search:

Search Tips :: Advanced Search

Search collections:

Sort by:	Display results:	Output format:

	Numerická simulace stlačitelného proudění s nízkým Machovým číslem skrz oscilující štěrbinu Punčochářová, Petra ; Fürst, J. ; Kozel, Karel ; Horáček, Jaromír The work deals with the numerical solution of 2D unsteady compressible viscous flows in a symmetric channel for a low inlet airflow velocity. The unsteadiness of the flow is caused by a prescribed periodic motion of a part of the channel wall with large amplitudes, nearly closing the channel during the oscillations. The flow in the channel can represent a simplified model of airflow coming from the trachea, through the glottal region with periodically vibratin vocal folds to the human vocal tract. The numerical solution is realized by finite volume method and the explicit predictor-corrector MacCormack scheme with Jameson artificial viscosity using a grid of quadrilateral cells. The moved grid of quadrilateral cells is considered in the form of conservation laws using Arbitrary Lagrangian-Eulerian method. Detailed record
	Numerické řešení nestacionárního proudění stlačitelné viskozní tekutiny v kanále Punčochářová, Petra ; Kozel, Karel ; Fürst, J. ; Horáček, Jaromír This work deals with numerical solutin of viscous laminar flows in a channel with time-changing wall. MacCormack scheme and Jameson artificial viscosity are used for numerical solution in the form of finite volume method with grid of quadrilateral cells. Mathematical model is unsteady system of 2D laminar Navier-Stokes equations. Unsteady behavior is caused by time dependent-boundary of lower. The channel represents a simple case of vocal tract. an unsteady domain is presented using Arbitrary Lagrangian-Eulerian method. In the work several numerical results of flows in two different channels are presented. Detailed record
	Numerické modelování nestacionárního proudění viskozní tekutiny ve 2D kanále pro nízká Machova čísla Punčochářová, Petra ; Kozel, Karel ; Fürst, J. ; Horáček, Jaromír The work presents an unsteady viscous flow for low upstream Mach number (M =0.012) in a 2D channel. Unsteady flow is caused by a moving part of the channel wall as a given function of time. The problem is described by the system of Navier-Stokes equations for compressible leminar flows. It is numerically solved by the explicit central finite volume version of MacCormack scheme on a grid of quadrilateral cells. Moved grid of quadrilateral cells is considered in the form of conservation laws using Arbitrary Lagrangian-Eulerian method. Physically the flow in the symmetrical channel can present some very simple model of flow in a human vocal tract. The aim is to compare two different cases of this problem of the flowfield. Detailed record

See also: similar author names
2	Punčochářová, P.
4	Punčochářová, Pavlína

Interested in being notified about new results for this query?
Subscribe to the RSS feed.

Digital Repository :: :: :: ::
Powered by v1.1.2
Maintained by

This site is also available in the following languages:
Česky English