Critical pressure in liquids due to dynamic choking
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU144775" target="_blank" >RIV/00216305:26210/22:PU144775 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/pre/abstract/10.1103/PhysRevE.105.045107" target="_blank" >https://journals.aps.org/pre/abstract/10.1103/PhysRevE.105.045107</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevE.105.045107" target="_blank" >10.1103/PhysRevE.105.045107</a>
Alternative languages
Result language
angličtina
Original language name
Critical pressure in liquids due to dynamic choking
Original language description
The existence of a critical pressure ratio due to gas-dynamic choking is well known for an ideal gas. It is reasonable to assume that liquids whose compressibility is defined by the bulk modulus also have a critical pressure ratio. The problem discussed here is a fundamental one because it deals with the basic principles of the compressible flow of liquids. It has been shown that even though an ideal gas with a constant heat capacity ratio value has a critical pressure ratio, liquid with a constant bulk modulus value experiences a critical pressure difference. As the outlet pressure gradually decreases, the liquid reaches the local speed of sound, and further reduction of this pressure does not lead to an increase in mass flow. This phenomenon occurs in liquids without considering the change from a liquid to a gaseous phase. Behavior is confirmed analytically for different bulk modulus models, and for a constant bulk modulus value, the phenomenon is verified by numerical simulation using computational fluid dynamics. The conclusions published in this work point to striking analogies between the behavior of liquids and ideal gas. The equations governing the motion of liquids derived in this work, thus complete the fundamental description of the critical flow of fluids.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICAL REVIEW E
ISSN
2470-0045
e-ISSN
2470-0053
Volume of the periodical
105
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
1-10
UT code for WoS article
000798342700010
EID of the result in the Scopus database
2-s2.0-85129746515