Zobrazeno 1 - 10
of 101 330
pro vyhledávání: '"gas flows"'
Autor:
Fei, Fei
This paper introduces a new asymptotic-preserving Monte Carlo (APMC) method for simulating multi-species gas flows. This method decomposes the collision operator of the traditional APMC methods into macro and micro collision parts: the macro collisio
Externí odkaz:
http://arxiv.org/abs/2410.20322
Let rarefied gas be confined in an infinite layer with diffusely reflecting boundaries that are isothermal and non-moving. The initial-boundary value problem on the nonlinear Boltzmann equation governing the rarefied gas flow in such setting is chall
Externí odkaz:
http://arxiv.org/abs/2411.17068
We develop an online optimisation algorithm for in situ calibration of collision models in simulations of rarefied gas flows. The online optimised collision models are able to achieve similar accuracy to Direct Molecular Simulation (DMS) at significa
Externí odkaz:
http://arxiv.org/abs/2411.13423
Autor:
Mulumba, Dorcus, Knapen, Johan, Comeron, Sebastien, Almeida, Cristina Ramos, Obonyo, Willice, Santaella, Pereira, Baki, Paul
Understanding how gas flows into galactic centres, fuels the AGN, and is in turn expelled back through feedback processes is of great importance to appreciate the role AGN play in the growth and evolution of galaxies. We use the MUSE-AO optical spect
Externí odkaz:
http://arxiv.org/abs/2410.03110
Multiscale rarefied gas flows with moving boundaries pose significant challenges to the numerical simulation, where the primary difficulties involve robustly managing the mesh movement and ensuring computational efficiency across all flow regimes. Bu
Externí odkaz:
http://arxiv.org/abs/2408.09316
Autor:
Tian, Songyan, Wu, Lei
Simulating complex gas flows from turbulent to rarefied regimes is a long-standing challenge, since turbulence and rarefied flow represent contrasting extremes of computational aerodynamics. We propose a multiscale method to bridge this gap. Our meth
Externí odkaz:
http://arxiv.org/abs/2408.08219
Autor:
Vasileiadis, Nikos, Tatsios, Giorgos, White, Craig, Lockerby, Duncan A., Borg, Matthew K., Gibelli, Livio
This paper presents uniGasFoam, an open-source particle-based solver for multiscale rarefied gas flow simulations, which has been developed within the well-established OpenFOAM framework, and is an extension of the direct simulation Monte Carlo (DSMC
Externí odkaz:
http://arxiv.org/abs/2409.10288
Autor:
Stepney, Matthew, Banerji, Manda, Tang, Shenli, Hewett, Paul C., Temple, Matthew J., Wethers, Clare F., Puglisi, Annagrazia, Molyneux, Stephen J.
We present a deep X-Shooter rest-frame UV to optical spectral analysis of the heavily reddened quasar, ULASJ2315+043 at z=2.566, known to reside in a major-merger host galaxy. The rest-frame optical is best-fit by a dust-reddened quasar E(B-V)_QSO =
Externí odkaz:
http://arxiv.org/abs/2408.10403
Simulating gas flow within the divertor, which is a crucial component in nuclear fusion reactors, is essential for assessing and enhancing its design and performance. Traditional methods, such as the direct simulation Monte Carlo and the discrete vel
Externí odkaz:
http://arxiv.org/abs/2409.05895