Detail publikačního výsledku

Using Optical Methods to Image Shockwaves in Low-Pressure Areas in Order to Increase Accuracy of Simulations of Gas Flows Within Low-Pressure Areas

BAYER, R.; VYROUBAL, P.

Originální název

Using Optical Methods to Image Shockwaves in Low-Pressure Areas in Order to Increase Accuracy of Simulations of Gas Flows Within Low-Pressure Areas

Anglický název

Using Optical Methods to Image Shockwaves in Low-Pressure Areas in Order to Increase Accuracy of Simulations of Gas Flows Within Low-Pressure Areas

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The area of a shockwave is the most specific area of a supersonic gas flow because its general shape is affected not only by the gas itself but also by the pressure difference between the operating (input) pressure and the atmospheric (output) pressure and by the shape of the aperture or jet the gas passes through. Simulating a supersonic gas flow leaving a jet into a high-pressure area requires to use specific constant values depending on the type of the gas and boundary conditions, which were already experimentally verified. However, when simulating a supersonic gas flow entering a low-pressure (or vacuum) area, different constant values are needed. This paper deals with a possibility of using optical methods for displaying a shockwave within a low-pressure area in order to modify a numerical model of the flow to make the simulated shockwave match the one from experiment.

Anglický abstrakt

The area of a shockwave is the most specific area of a supersonic gas flow because its general shape is affected not only by the gas itself but also by the pressure difference between the operating (input) pressure and the atmospheric (output) pressure and by the shape of the aperture or jet the gas passes through. Simulating a supersonic gas flow leaving a jet into a high-pressure area requires to use specific constant values depending on the type of the gas and boundary conditions, which were already experimentally verified. However, when simulating a supersonic gas flow entering a low-pressure (or vacuum) area, different constant values are needed. This paper deals with a possibility of using optical methods for displaying a shockwave within a low-pressure area in order to modify a numerical model of the flow to make the simulated shockwave match the one from experiment.

Klíčová slova

ANSYS Fluent, Electron microscopy, Environmental scanning electron microscope, ESEM, Optical methods, Shadowgraph, Schlieren method, Shock wave, SolidWorks

Klíčová slova v angličtině

ANSYS Fluent, Electron microscopy, Environmental scanning electron microscope, ESEM, Optical methods, Shadowgraph, Schlieren method, Shock wave, SolidWorks

Autoři

BAYER, R.; VYROUBAL, P.

Rok RIV

2018

Vydáno

18.12.2017

Kniha

ECS Transections

ISSN

1938-5862

Periodikum

ECS Transactions

Stát

Spojené státy americké

Strany od

1

Strany do

6

Strany počet

6

BibTex

@inproceedings{BUT140303,
  author="Robert {Bayer} and Petr {Vyroubal}",
  title="Using Optical Methods to Image Shockwaves in Low-Pressure Areas in Order to Increase Accuracy of Simulations of Gas Flows Within Low-Pressure Areas",
  booktitle="ECS Transections",
  year="2017",
  journal="ECS Transactions",
  pages="1--6",
  doi="10.1149/08101.0305ecst",
  issn="1938-5862"
}