FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1924741827> ?p ?o ?g. }

• W1924741827 endingPage "A110" @default.
• W1924741827 startingPage "A110" @default.
• W1924741827 abstract "An Equation of State (textit{EoS}) closes the set of fluid equations. Although an ideal EoS with a constant textit{adiabatic index} $Gamma$ is the preferred choice due to its simplistic implementation, many astrophysical fluid simulations may benefit from a more sophisticated treatment that can account for diverse chemical processes. Here, we first review the basic thermodynamic principles of a gas mixture in terms of its thermal and caloric EoS by including effects like ionization, dissociation as well as temperature dependent degrees of freedom such as molecular vibrations and rotations. The formulation is revisited in the context of plasmas that are either in equilibrium conditions (local thermodynamic- or collisional excitation- equilibria) or described by non-equilibrium chemistry coupled to optically thin radiative cooling. We then present a numerical implementation of thermally ideal gases obeying a more general caloric EoS with non-constant adiabatic index in Godunov-type numerical schemes.We discuss the necessary modifications to the Riemann solver and to the conversion between total energy and pressure (or vice-versa) routinely invoked in Godunov-type schemes. We then present two different approaches for computing the EoS.The first one employs root-finder methods and it is best suited for EoS in analytical form. The second one leans on lookup table and interpolation and results in a more computationally efficient approach although care must be taken to ensure thermodynamic consistency. A number of selected benchmarks demonstrate that the employment of a non-ideal EoS can lead to important differences in the solution when the temperature range is $500-10^4$ K where dissociation and ionization occur. The implementation of selected EoS introduces additional computational costs although using lookup table methods can significantly reduce the overhead by a factor $3sim 4$." @default.
• W1924741827 created "2016-06-24" @default.
• W1924741827 creator A5001432824 @default.
• W1924741827 creator A5060676423 @default.
• W1924741827 creator A5065149522 @default.
• W1924741827 creator A5085961056 @default.
• W1924741827 date "2015-08-01" @default.
• W1924741827 modified "2023-10-02" @default.
• W1924741827 title "Astrophysical fluid simulations of thermally ideal gases with non-constant adiabatic index: numerical implementation" @default.
• W1924741827 cites W1969760987 @default.
• W1924741827 cites W1969921010 @default.
• W1924741827 cites W1970142243 @default.
• W1924741827 cites W1972497718 @default.
• W1924741827 cites W1978574709 @default.
• W1924741827 cites W1982040517 @default.
• W1924741827 cites W1984356688 @default.
• W1924741827 cites W1988728649 @default.
• W1924741827 cites W1990653832 @default.
• W1924741827 cites W1992816523 @default.
• W1924741827 cites W1993230081 @default.
• W1924741827 cites W1995371236 @default.
• W1924741827 cites W2011324636 @default.
• W1924741827 cites W2016922024 @default.
• W1924741827 cites W2023968025 @default.
• W1924741827 cites W2033318843 @default.
• W1924741827 cites W2038274723 @default.
• W1924741827 cites W2043057066 @default.
• W1924741827 cites W2044257729 @default.
• W1924741827 cites W2045031456 @default.
• W1924741827 cites W2054450804 @default.
• W1924741827 cites W2059049415 @default.
• W1924741827 cites W2063451176 @default.
• W1924741827 cites W2067345573 @default.
• W1924741827 cites W2067683282 @default.
• W1924741827 cites W2075675122 @default.
• W1924741827 cites W2075776956 @default.
• W1924741827 cites W2080886544 @default.
• W1924741827 cites W2100045365 @default.
• W1924741827 cites W2108490226 @default.
• W1924741827 cites W2123867568 @default.
• W1924741827 cites W2126806502 @default.
• W1924741827 cites W2139764923 @default.
• W1924741827 cites W2145968535 @default.
• W1924741827 cites W2152290024 @default.
• W1924741827 cites W2165917395 @default.
• W1924741827 cites W2168204873 @default.
• W1924741827 cites W2915092619 @default.
• W1924741827 cites W2952822475 @default.
• W1924741827 cites W298257953 @default.
• W1924741827 cites W3098436020 @default.
• W1924741827 cites W3100685835 @default.
• W1924741827 cites W3105414201 @default.
• W1924741827 cites W3106353668 @default.
• W1924741827 cites W3123108674 @default.
• W1924741827 cites W4205236375 @default.
• W1924741827 doi "https://doi.org/10.1051/0004-6361/201526247" @default.
• W1924741827 hasPublicationYear "2015" @default.
• W1924741827 type Work @default.
• W1924741827 sameAs 1924741827 @default.
• W1924741827 citedByCount "18" @default.
• W1924741827 countsByYear W19247418272016 @default.
• W1924741827 countsByYear W19247418272017 @default.
• W1924741827 countsByYear W19247418272018 @default.
• W1924741827 countsByYear W19247418272019 @default.
• W1924741827 countsByYear W19247418272020 @default.
• W1924741827 countsByYear W19247418272021 @default.
• W1924741827 countsByYear W19247418272022 @default.
• W1924741827 countsByYear W19247418272023 @default.
• W1924741827 crossrefType "journal-article" @default.
• W1924741827 hasAuthorship W1924741827A5001432824 @default.
• W1924741827 hasAuthorship W1924741827A5060676423 @default.
• W1924741827 hasAuthorship W1924741827A5065149522 @default.
• W1924741827 hasAuthorship W1924741827A5085961056 @default.
• W1924741827 hasBestOaLocation W19247418271 @default.
• W1924741827 hasConcept C109663097 @default.
• W1924741827 hasConcept C121332964 @default.
• W1924741827 hasConcept C121864883 @default.
• W1924741827 hasConcept C142475440 @default.
• W1924741827 hasConcept C30342001 @default.
• W1924741827 hasConcept C44870925 @default.
• W1924741827 hasConcept C62520636 @default.
• W1924741827 hasConcept C74902906 @default.
• W1924741827 hasConcept C97355855 @default.
• W1924741827 hasConceptScore W1924741827C109663097 @default.
• W1924741827 hasConceptScore W1924741827C121332964 @default.
• W1924741827 hasConceptScore W1924741827C121864883 @default.
• W1924741827 hasConceptScore W1924741827C142475440 @default.
• W1924741827 hasConceptScore W1924741827C30342001 @default.
• W1924741827 hasConceptScore W1924741827C44870925 @default.
• W1924741827 hasConceptScore W1924741827C62520636 @default.
• W1924741827 hasConceptScore W1924741827C74902906 @default.
• W1924741827 hasConceptScore W1924741827C97355855 @default.
• W1924741827 hasLocation W19247418271 @default.
• W1924741827 hasLocation W19247418272 @default.
• W1924741827 hasLocation W19247418273 @default.
• W1924741827 hasOpenAccess W1924741827 @default.
• W1924741827 hasPrimaryLocation W19247418271 @default.
• W1924741827 hasRelatedWork W1662283796 @default.

• next