Project detail

The high-frequency pressure pulsations in hydraulic machines

Duration: 01.05.2002 — 30.04.2005

Funding resources

Czech Science Foundation - Postdoktorandské granty

- part funder (2002-05-01 - 2005-04-30)

On the project

Navrhovaný projekt je zaměřený na problematiku vysokofrekvenčních tlakových pulzací v hydraulických strojích

Description in English
The proposed project deals with the high-frequency pressure pulsations at water turbines. These pressure pulsations are generated by the stator-rotor blade lattice interaction. The frequency is a multiple of the turbine speed. The hydraulic systemscannotbe regarded as one-dimensional because of the high frequency of the pressure pulsations and relatively small dimensions of the spiral case compared to pressure pulsation wave length. For this reason the proposed project concentrates on thetransfer matrix formulation that considers two-dimensional dynamic behaviour of the hydraulic system. This formulated transfer matrix will allow more precise prediction of the high-frequency pressure pulsations in hydraulic systems with water turbines inthe design stage of a real project.

Mark

GP101/02/D057

Default language

Czech

People responsible

Habán Vladimír, doc. Ing., Ph.D. - principal person responsible

Units

Victor Kaplan Dept. of Fluid Engineering
- beneficiary (2002-05-01 - 2005-04-30)

Results

HABÁN, V.; POCHYLÝ, F. Vliv druhé viskozity a odporu na rozváděcích lopatkách na vysokofrekvenční pulsace v soustavě s čerpadlovou turbínou. In PROCEEDINGS INTERACTION AND FEEDBACKS 2003. Praha: Institute of Thermomechanics AS CR Prague, 2003. s. 27 ( s.)ISBN: 80-85918-84-6.
Detail

NAGY, Z., PROVAZNÍK, I., FEDRA, P. Wavelet interpolation of 2D images. In Proceedings of International Conference Wavelets and Applications Workshop. Ascona, 1998. p. 195 ( p.)
Detail

POCHYLÝ, F.; FIALOVÁ, S.; HABÁN, V. Flow with large deformation of boundaries. Strojnícky časopis, 2005, vol. 56,2005, no. 4, p. 211-220. ISSN: 0039-2472.
Detail

POCHYLÝ, F.; FIALOVÁ, S.; HABÁN, V. Solution of Navier-Stokes equations with Large Deformation of Boundaries. In Flow-Induced Vibration Volume Il. Paris, France: E. DE LANGRE & F. AXISA, 2004. p. 123-127. ISBN: 2-7302-1142-X.
Detail

NAGY, Z., SZABÓ, Z. Image format conversion by wavelets from SIF into CCIR 601 (4:2:2) with sharpness retained. In Proceedings of 3rd International Student Conference on Electrical Engineering - Poster 99. Praha: CVUT, 1999. p. 36 ( p.)
Detail

Responsibility: Habán Vladimír, doc. Ing., Ph.D.