Zobrazeno 1 - 10
of 7 254
pro vyhledávání: '"Riemann problem"'
Akademický článek
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Publikováno v:
气体物理, Vol 9, Iss 2, Pp 33-42 (2024)
The practical ghost fluid method (PGFM) utilizes velocity solutions of Riemann problems to model the interface evolution of compressible multi-material flows. This paper presented a simplified neural network model for two-gas flows by predicting the
Externí odkaz:
https://doaj.org/article/2dffbbcd6c8b4a2d8e21c0a63b3f8980
Publikováno v:
Royal Society Open Science, Vol 11, Iss 7 (2024)
The theory of small-amplitude waves propagating across a blood vessel junction has been well established with linear analysis. In this study, we consider the propagation of large-amplitude, nonlinear waves (i.e. shocks and rarefactions) through a jun
Externí odkaz:
https://doaj.org/article/0497987820c94b5da85ce59e37b3d591
Publikováno v:
Mathematics, Vol 12, Iss 20, p 3268 (2024)
In a gas–water interaction problem, the nonlinear relationship between shock wave velocity is introduced into a Hugoniot curve, and a Mie–Grüneisen Equation of state (EOS) is established by setting the Hugoiot curve as the reference state. Unlik
Externí odkaz:
https://doaj.org/article/5206231a8e1f448e9fa465c7f6e2eb2e
Publikováno v:
Data in Brief, Vol 53, Iss , Pp 110081- (2024)
This paper presents fluid dynamics simulation data associated with two test cases in the related research article [1]. In this article, an efficient bimaterial Riemann problem solver is proposed to accelerate multi-material flow simulations that invo
Externí odkaz:
https://doaj.org/article/6c51a71c699442dabbd7ae81a33cb05a
Publikováno v:
Comptes Rendus. Mécanique, Vol 351, Iss G2, Pp 337-353 (2023)
A stable scheme is proposed in this paper in order to obtain approximate solutions of second-moment turbulent models for incompressible flows with or without thermal transport equation. The analysis of the convective terms, which includes the solutio
Externí odkaz:
https://doaj.org/article/a57c7e08498045cb98bb6414d8eafb15
Akademický článek
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Autor:
Maria Laura Martins-Costa, Felipe Bastos de Freitas Rachid, Rogério Pazetto S. da Gama, Rogério M. Saldanha da Gama
Publikováno v:
Axioms, Vol 13, Iss 9, p 587 (2024)
This paper studies constrained Newtonian fluid flows through porous media, accounting for the drag effect on the fluid, modeled using a Mixture Theory perspective and a constitutive relation for the pressure—namely, a continuous and differentiable
Externí odkaz:
https://doaj.org/article/b3c008979ae4486db13102530e54b868
Publikováno v:
Mathematics, Vol 12, Iss 16, p 2444 (2024)
We are concerned with the Riemann problem for the isentropic Euler equations of mixed type in the dark energy fluid. This system is non-strictly hyperbolic on the boundary curve of elliptic and hyperbolic regions. We obtain the unique admissible shoc
Externí odkaz:
https://doaj.org/article/0e5398d1e27f4852b2b8078ac0ed6cd2
Publikováno v:
Известия Саратовского университета. Новая серия. Серия Математика. Механика. Информатика, Vol 23, Iss 1, Pp 58-69 (2023)
In this paper, we study an inhomogeneous Riemann boundary value problem with a finite index and a boundary condition on a ray for a generalized Cauchy – Riemann equation with a singular coefficient. For the solution of this problem, we derived a fo
Externí odkaz:
https://doaj.org/article/63acffbeefdd42d39894be861d179f5b