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Výsledek výzkumu

Investigation of Unsteady High-Speed Flow Field in the Radial Stator Turbine Cascade by Means of Interferometry

Synthesis of results from measurements by means of different modifications of interferometric method offers complex picture of unsteady behaviour of two-dimensional high-speed flow field....

BK - Mechanika tekutin

  • 2008
  • D
Výsledek výzkumu

On Selected Experimental Methods In High-Speed Aerodynamics

ofspecial topics related to practical application. In particular: flow in axial and radial turbine cascades, unsteady flow in cascades, flow in minichannels, unsteady flow around a vibrating prof...

BK - Mechanika tekutin

  • 2011
  • O
Výsledek výzkumu

High-Frequency Unsteady Radial Turbine Map Approximation and Extrapolation by 1-D simulation using GT Power Modules

Experiment based turbine map consists in reduced mass flow rate or isentropic efficiency in dependence on pressure ratio close to optimum reduced speed (blade tip speed ratio). It is described and parametrized by the new fu...

JT - Pohon, motory a paliva

  • 2008
  • R
Výsledek výzkumu

Wind tunnel tests of oscillating wing using the surface pressure transducers.

the development of unsteady measurement on the oscillated half-wing model in high speed...

JU - Aeronautika, aerodynamika, letadla

  • 2010
  • Jx
Výsledek výzkumu

On the Unsteady Aerodynamics of a High-Speed Turbine with Squealer Blade Tips

-resolved flow field of an HP turbine stage mounting engine-representative squealer of the stage outlet flow, strongly modulated by periodic flow phenomena originated by the interaction between blade rows. The experimental ...

Aerospace engineering

  • 2018
  • D
  • Odkaz
Výsledek výzkumu

Characteristics of a Two-phase Flow Inside the Mixing Chamber of an Effervescent Atomizer

, thereby forming a two-phase flow. A simplified transparent model of atomizer has been designed in order to observe the two-phase flow of light heating oil and air mixture. High-speed camera Redlake MotionPro was ...

BK - Mechanika tekutin

  • 2004
  • D
Výsledek výzkumu

Method of optical measurement of unsteady flow fields with periodicity in time domain

The optical measurement method of unsteady high speed flow fields with a periodic structure was developed. The method enables measurements of flow field in selected phases of the period. The multiple measu...

BK - Mechanika tekutin

  • 2007
  • X
Výsledek výzkumu

ANALYSIS OF PRESSURE PULSATIONS OF CAVITATING FLOW IN CONVERGING-DIVERGING NOZZLE

Cavitating flow in converging-diverging nozzle (axisymmetric Venturi tube) is investigated. Characterization of the cavitating flow was done with high speed camera properties obtained from high-speed

JE - Nejaderná energetika, spotřeba a užití energie

  • 2015
  • D
Výsledek výzkumu

Evaluation of Interferograms of Unsteady Subsonic Airflow Past a Fluttering Airfoil

The paper reports on time-resolved interferometric measurements of unsteady ow elds around a uttering NACA0015 airfoil. A mechanical model with two degrees of freedom (pitch and plunge) has been designed and tested in a high-<...

BK - Mechanika tekutin

  • 2016
  • D
  • Odkaz
Výsledek výzkumu

A Shock Sensor - Based Second - Order Blended (Bx) Upwind Residual Distribution Scheme for Steady and Unsteady Compressible Flow

and the high accuracy of the LDA scheme. The blending coefficient is constructed such that the scheme is stable in regions with high gradients and second order accurate in smooth flow regions. Extension for unsteady

BA - Obecná matematika

  • 2008
  • D
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