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Velocity profiles of vortex diffuser
Program enables detemination of velocity profiles in dependence of volumetric air flow rate from vortex diffuser and of the distance from the centre of vortex diffuser. The program is intended for isothermal flow....
JE - Nejaderná energetika, spotřeba a užití energie
- 2011 •
- R
Rok uplatnění
R - Software
Vortex breakdown, vorticity dynamics and energy dissipation in conical diffusers
Temporal development of the swirling flow in a conical diffuser was studied, influence of inlet velocity profile on behavior of vrticity dynamics and appearance of vortex breakdown was documented....
BK - Mechanika tekutin
- 2010 •
- O
Rok uplatnění
O - Ostatní výsledky
Simplified model of vortex diffuser in CFD
The project is focused on creating a simplified model of vortex diffuser in CFD for determination of airflow velocity field pattern. Results of numerical analysis of the airflow near the vortex diffuser are compare...
JE - Nejaderná energetika, spotřeba a užití energie
- 2010 •
- D
Rok uplatnění
D - Stať ve sborníku
Velocity profile influence on spiral vortex breakdown in diffuser
Flow in diffuser with circumferential velocity component is accompanied by spiral vortex breakdown for large diffuser divergence angles. This phenomenon tubes operating in part load conditions, where vortex breakdo...
BK - Mechanika tekutin
- 2008 •
- O
Rok uplatnění
O - Ostatní výsledky
Airflow Pattern Near Vortex Diffuser - CFD and Experiment
Authors deal with the calculation and the experimentally determined character of the airflow in the vicinity of the vortex diffuser in their contribution. The purpose of the experiment is verification of boundary conditions entered ...
JE - Nejaderná energetika, spotřeba a užití energie
- 2011 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Connection between inlet velocity field and diffuser flow instability
Simulations of the flow in a straight diffuser were carried out for different and magnitudes of pressure pulsations of the rotating vortex rope were recorded. Two typesof vortices were detected. The first one is a thin vortex
BK - Mechanika tekutin
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Modelling on cavitation in a diffuser with vortex generator
Based on cavitation modelling in Laval nozzle results and experience, problem with the diffuser with vortex generator was defined. The problem describes unsteady multiphase flow of water. Different cavitation models were used when m...
JR - Ostatní strojírenství
- 2013 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
Comprehensive Study Of Unsteady Pressure Pulsations Induced By The Spiral Vortex Structure In A Conical Diffuser
) and the conical diffuser (equipped with the series of pressure transducers). The experimental synchronous and asynchronous pulsations induced by the vortex structure and examine to visualize vortex shape and compare compu...
Energy and fuels
- 2015 •
- O •
- Link
Rok uplatnění
O - Ostatní výsledky
Výsledek na webu
Simulation of vortex breakdown in an enclosed cylinder as a preliminary study of the draft tube vortex rope creation
Vortex breakdown occurs as instability of the steady flow in many engineering applications (turbine diffusers, swirl chambers, etc.). Paper presents investigation of this phenomena in an enclosed cylinder. This original problem is f...
BK - Mechanika tekutin
- 2008 •
- D
Rok uplatnění
D - Stať ve sborníku
Simulation of vortex breakdown in an enclosed cylinder as a preliminary study of the draft tube vortex rope creation
Vortex breakdown occurs as instability of the steady flow in many engineering applications (turbine diffusers, swirl chambers, etc.). Paper presents investigation of this phenomena in an enclosed cylinder. This original problem is f...
BK - Mechanika tekutin
- 2008 •
- D
Rok uplatnění
D - Stať ve sborníku
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