999C1a:GAP101/10/1230 - Výsledky hledání - Digitální repozitář

host :: přihlásit Digitální repozitář
		Hledej		Nový záznam		Nápověda		O repozitáři

Hlavní stránka > Výsledky hledání: 999C1a:GAP101/10/1230

Hledej:

Tipy pro vyhledávaní :: Rozšířené hledání

Hledej ve sbírkách:

Seřadit podle:	Zobrazit výsledky:	Výstupní formát:

	Vortex structures generated by dbd plasma actuator Procházka, Pavel P. This article deals with the research of vortex structures generated by a plasma actuator. Plasma actuators belong to devices that can be used for active flow control. Plasma actuator flow control has been in the center of interest for the last two decades. However, one can find only a limited amount of information dealing with the physical principal of this phenomenon. The conclusion of this article is formulated to give an explanation of physical laws acting during generating, evaluating and decay vortex structures in a complex way to ensure that results could be apply in the future for more applicable research. Úplný záznam
	On the Reynolds number role in structure of recirculation zone b ehind backward facing step in a narow channel Uruba, Václav Topology of the time-mean flow-field behind the backward facing step in a narrow channel is presented for various Reynolds numbers. The flow-field is studied in planes close to the channel bottom and in the plane of symmetry. Special attention is devoted to the appearance of secondary and higher order structures defined on the time-mean basis. Experimental results are obtained from PIV measurements. Úplný záznam
	Application of the opd method in a flow-field dynamics analysis Uruba, Václav The Oscillation Pattern Decomposition method (OPD) is applicable on the dynamical velocity vector fields of turbulent flow coming from either mathematical simulation (DNS) or from experiment using an appropriate technique (time-resolved PIV in most cases). The OPD method is based on idea of identification of patterns rated according to their stability of appearance. Úplný záznam
	Velocity correlations in turbulent boundary layer on smooth and rough surfaces Uruba, Václav The spatial velocity correlations within a turbulent boundary layer are evaluated from PIV experiments for two cases, boundary layer on smooth and rough walls respectively. Basic features of the two cases are shown. Typical length-scales and shapes of coherent structures could be estimated form the evaluated correlations. Úplný záznam
	Spatiotemporal Velocity Correlations in a Turbulent Boundary Layers Uruba, Václav ; Jonáš, Pavel The spatio-temporal velocity correlations within a turbulent boundary layer are evaluated from PIV experiments. Basic features of those characteristics are shown. Mean scales and shapes of coherent structures could be estimated. Úplný záznam
	Some Results of Simulations of 3D Backward Facing Step Louda, Petr ; Kozel, K. ; Příhoda, Jaromír The paper deals with numerical simulation of 3D incompressible flow over backward facing step. The RANS technique is used with an explicit algebraic Reynolds stress turbulence model. The numerical solution is achieved by implicit finite volume method. The results are compared with measurement. Úplný záznam
	On structure of recirculation zone behind backward-facing step in a narrow channel Uruba, Václav The time mean structure of the flow behind a step in a narrow channel was shown. The footprint behind the step is not connected with vortical structures, as formulated in older studies, but the low pressure generation close to the channel bottom in the recirculation region seems to be more relevant. Úplný záznam
	Colloquium Fluid Dynamics 2012 : Proceedings Uruba, Václav ; Jonáš, Pavel The purpose of the Colloquium is to bring together experts on theoretical and experimental fluid mechanics from the academic institutes, universities and other research and development establishments and to offer the opportunity to exchange and update information on the solved problems and to serve as a forum for discussion with leading scientists. Úplný záznam
	Dynamics of flow behind backward-facing step in a narrow channel Uruba, Václav The results and their analysis from experiments obtained by TR-PIV are presented on the model of backward-facing step in a narrow channel. The recirculation zone is studied in details. Mean structures are evaluated from fluctuating velocity fields. Then dynamics of the flow is characterized with help of POD (BOD) technique. Substantial differences in high energy dynamical structures behaviour within the back-flow region and further downstream behind the flow reattachment have been found. Úplný záznam
	Mean structure of the flow over backward facing step in a narrow channel Uruba, Václav Flow structure behind the backward facing step in a narrow channel was studied in details. The step height was 25 % of the channel width. The structure of the region just behind the step forming the back-flow region was subjected to experimental investigation using stereo PIV technique. Time-mean 3D structures behind the step are evaluated and shown in the paper. Úplný záznam

Chcete být upozorněni, pokud se objeví nové záznamy odpovídající tomuto dotazu?
Přihlásit se k odběru RSS.

Digitální repozitář :: :: :: ::
Powered by v1.1.2
Spravuje

Tato stránka je dostupná také v následujících jazycích:
Česky English