gas dynamics
Comparison of Solution Methods for some Classical Flow Problems in Rarified Gas Dynamics
... Barichello, et al. [13] studied a version of the dis- crete-ordinates method to solve in a unified manner some classical flow problems based on the Bhatnagar, Gross and Krook model in the theory of rarefied gas ...
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Vanishing viscosity limit for Riemann solutions to zero-pressure gas dynamics with flux perturbation
... In this paper, by the viscosity vanishing approach, we consider the Riemann problem for zero-pressure gas dynamics with flux perturbation. The Riemann solutions involve parameterized delta shock wave and ...
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Comparing macroscopic continuum models for rarefied gas dynamics : a new test method
... Since boundary conditions for sets of MCMs are still in development, non-mature and inconsistent [4, 20, 25-27], existing test techniques (except the description of Couette flow and Kramer’s problem) do not generally ...
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Interaction of shock waves in gas dynamics: Uniform in time asymptotics
... It is clear that the weak point of this scheme is the consideration of shock waves as noninteracting ones for time close to t ∗ . Moreover, this conflicts with the physical sense of the problem since the actual ...
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Modelling, asymptotic analysis and simulation of the gas dynamics in a chimney
... Keeping in mind the above considerations and simplifications we start with a one dimen- sional fully compressible model. Let ρ, ˜ u, ˜ p ˜ and T ˜ be respectively the density, the velocity, the pressure and the ...
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Maximum Entropy Reconstruction for Gas Dynamics
... for gas dynamics problems in the mid-high- Kn regime must rely on the Boltzmann equation, discussed at some length in [6], [12], and [15] and introduced in the next ...the gas is dilute, in the sense ...
127
Asymptotic Solutions of the Kinetic Boltzmann Equation and Multicomponent Non Equilibrium Gas Dynamics
... equilibrium gas dynamics is derived, that corresponds to the first order in the approximate (asym- ptotic) method for solution of the system of kinetic Boltzmann ...
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An Analytical Treatment to Fractional Gas Dynamics Equation
... Abstract: In this paper, the new iterative method (NIM) is applied to solve nonlinear fractional gas dynamics equation. Further, a coupling of the Sumudu transform and Adomian decomposion (STADM) is used to ...
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Some elementary inequalities in gas dynamics equation
... We describe the sets on which difference of solutions of the gas dynamics equation satisfy some special conditions. By virtue of nonlinearity of the equation the sets depend on the solution gradient ...
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Design and Thermal analysis of Piston in Multi Cylinder Engine by Interring Gas Dynamics
... Abstract: The piston ring performs its function as a seal of high and low pressure sides in a cylinder and a medium of heat transfer from piston to cylinder walls. The operation of piston ring packs influences the ...
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Gas dynamics at the micro-scale : a review of progress in hydrodynamic modelling
... Guo and co-workers 28 developed a numerical solution method for Stops’ original expression for the mean-free-path which, together with 2 nd -order slip boundary conditions, produced good predictions for phenomena such as ...
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General Relativistic Gas Dynamics in the Central Cavity of Binary Black Holes
... As previously remarked in Section 3.3.1, matter sloshes back and forth within a bar-like region centered on the binary center-of-mass. Its mass during early times of our simulations is largely due to a transient whose ...
142
Longitudinal discontinuities in riverine greenhouse gas dynamics generated by dams and urban wastewater
... tochthonous gas production and external supplies of GHGs derived from WWTP ...GHG dynamics but also DOM com- position and ...GHG dynamics in highly human-impacted river systems would contribute to ...
21
Cosmical gas dynamics, why was it so difficult?
... Batchelor (II,117): Firstly I should like to remind people that the determination of the asymptotic level of magnetic energy in a medium of high conductivity which is i[r] ...
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Evaporation boundary conditions for the R13 equations of rarefied gas dynamics
... Increase of the saturation pressure difference ∆p for unchanged temperature difference ∆θ implies an increase in the enthalpy of vaporization. For the transport between two liquid layers, this implies increased ...
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Molecular dynamics studies of anomalous transport in rarefied gas flows
... working gas is Neon and the interaction of molecules is simulated using the Lennard-Jones (LJ) intermolecular ...non-equilibrium gas dynamics are useful for assessing the range of validity of ...
10
Dynamics of a small gap gas lubricated bearing with Navier slip boundary conditions
... bearing dynamics by comparing experimental results with a coupled model for an oil squeeze film ...bearing/seal dynamics has been highlighted by Sayma et ...rarefied gas dynamics to be ...
30
The Influence of Dense Gas Rings on the Dynamics of a Stellar Disk in the Galactic Center
... The SMBH and the young stars are embedded into the cusp of the nuclear star cluster, which has a nearly spherical density pro fi le ( Genzel et al. 2003; Schödel et al. 2007 ) and is a source of mass precession and ...
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Unravelling the electronic structure and dynamics of an isolated molecular rotary motor in the gas phase
... ular motor anions were generated by electrospray ionisation of solutions of 1a (R ¼ COOH) in methanol with a couple of drops of ammonia added. The anions, 1a (R ¼ COO ), were mass selected by a quadrupole and passed into ...
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Application of potential function in molecular dynamics simulation of natural gas hydrate
... natural gas hydrate is studied, using molecular dynamics simulation method, water molecules as the non spherical molecules, two non polar guest molecules are considered for spherical molecules, which the ...
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