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Effects of the opening speed of the valve in a diaphragmless shock tube for metrological purposes
ID Hernández Castro, Francisco Javier (Avtor), ID Kutin, Jože (Avtor), ID Svete, Andrej (Avtor)

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Izvleček
To develop a measurement system for calibrating high-frequency dynamic pressure that is capable of acting as a primary dynamic pressure calibration standard, a new concept of the shock tube, called the diaphragmless shock tube, has recently been developed. In most such shock tubes, the diaphragm is replaced with a commercially available, ISTA KB fast-opening valve (FOV). In this article, a numerical model was built in OpenFOAM to investigate the effects of the opening mechanism of ISTA KB-40-100 FOV on the formation of the shock wave in a shock tube with an internal radius of 20 mm. Numerical simulations were performed for the driver-driven pressure ratio of 40 and the valve-opening speeds of 5, 10, and 20 m/s, which were compared with the case of instantaneous valve opening, and the results predicted by the ideal shock tube theory. The observed variables were the mass flow through the valve, as well as the pressure, the temperature, and the shock wave velocity in the formation region behind the valve. The results show that when the shock wave undergoes an initial acceleration, the shock front accelerates more at higher opening speeds of the valve. The results also show that the valve-opening mechanism generates a series of reflection waves that propagate into the driven section, giving the shock wave velocity an oscillatory character, which can affect the calibration and measurement capability of the shock tube as a primary high-frequency, time-varying, pressure calibration standard.

Jezik:Angleški jezik
Ključne besede:diaphragmless shock tubes, numerical simulations, OpenFOAM, primary calibration method, shock wave formation, time-varying pressure
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2024
Št. strani:Str. 158-168
Številčenje:Vol. 24, no. 1
PID:20.500.12556/RUL-153408 Povezava se odpre v novem oknu
UDK:531.7:519.62
ISSN pri članku:1530-437X
DOI:10.1109/JSEN.2023.3333323 Povezava se odpre v novem oknu
COBISS.SI-ID:179395587 Povezava se odpre v novem oknu
Datum objave v RUL:04.01.2024
Število ogledov:518
Število prenosov:57
Metapodatki:XML DC-XML DC-RDF
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Gradivo je del revije

Naslov:IEEE sensors journal
Skrajšan naslov:IEEE sens. j.
Založnik:Institute of Electrical and Electronics Engineers
ISSN:1530-437X
COBISS.SI-ID:22563589 Povezava se odpre v novem oknu

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:brezmembranske udarne cevi, numerične simulacije, OpenFOAM, primarna kalibracijska metoda, formiranje udarnega vala, časovno spreminjajoči tlak

Projekti

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:J2-3054
Naslov:Napredni sistem udarne cevi za visokofrekvenčno primarno dinamično tlačno umerjanje

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0223
Naslov:Prenos toplote in snovi

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