National Repository of Grey Literature 99 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Creation and Validation of Pressure Loss Model for Steam Turbine Control Valves
Sláma, V. ; Mrozek, L. ; Tajč, L. ; Šimurda, David ; Hála, Jindřich
In this paper, a creation and a validation of the pressure loss model for the specific and widely used design of the steam turbine inlet control valve assembly called an L-valve is described. This model is based on a wide range of experimental measurements on the valve model installed in an air tunnel and it is validated by numerical simulations using the commercial code. The results of experimental measurements as well as numerical simulations are shown. Furthermore, differences between experimental and numerical results are discussed. According to the results, the pressure loss model in the form of a smart and effective procedure for calculating the valve assembly pressure losses and choosing an optimal valve sizes has been created.\n
Optical and Pneumatic Measurements on TR-U-9A Cascade
Luxa, Martin ; Šimurda, David
The report contains results and evaluation of conducted optical (interferometry and schlieren technique) and pneumatic measurements on the eroded variant of the new tip section, intended for long rotor blade.
Optical and Pneumatic Measurement on TR-U-10 Cascade
Luxa, Martin ; Šimurda, David
The report contains results and evaluation of conducted optical (interferometry and schlierren technique) and pneumatic measurements on the third variant of the new tip section, intended for long rotor blade.
Measurements on TR-U-9 Cascade
Luxa, Martin ; Šimurda, David ; Hála, Jindřich
The report contains results and evaluation of conducted optical (interferometry and schlieren technique), pneumatic and CTA (hot films) measurements on the second variant of the tip section, intended for long rotor blade.
Measurements on TR-W-2 Cascade
Luxa, Martin ; Šimurda, David
The research report contains experimetal data from optical and pneumatic measurements on transonic profile cascade with non-linear part of suction side downstream the sonic line, which is intended for the rotor wheal of a last stage of steam turbine.
Measurements on TR-W-1 Cascade
Luxa, Martin ; Šimurda, David
The research report contains experimetal data from optical and pneumatic measurements on transonic profile cascade with linear part of suction side downstream the sonic line, which is intended for the rotor wheal of a last stage of steam turbine
Topical Problems of Fluid Mechanics 2020
Šimurda, David ; Bodnár, T.
Proceedings consist of contributions dealing with both research on various problems in fluid mechanics and mathematical or experimental methods utilizable for solution of such problems.
Effects and development of the near-wall flow in the hub section of the last stage steam turbine blade
Hála, Jindřich ; Šimurda, David ; Luxa, Martin ; Fürst, J. ; Bobčík, M. ; Novák, O. ; Synáč, J.
This paper deals with the investigation of three-dimensional vortex structures in the near-wall region of the blade cascade which represents the model of the hub section blading of last stage blades of a steam turbine. The investigation aims to describe the development and mutual interaction of the vortex structures and its influence on the kinetic energy losses. The analyses are based on the RANS numerical simulations and experiments conducted in the high-speed wind tunnel.\n\n
Topical Problems of Fluid Mechanics 2019
Šimurda, David ; Bodnár, T.
Proceedings cover both research on various problems in fluid mechanics and descriptions of mathematical or experimental methods utilizable for solution of such problems.\n
Measurements on KR-D-2 Blade Cascade
Šimurda, David ; Luxa, Martin ; Radnic, Tomáš ; Hála, Jindřich
This report contains results and evaluation of aerodynamic measurements conducted on second variant of transonic compressor blade cascade.

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