Low Mach, compressibility, and finite size effects of localized uniform heat sources in a gas
Sign Up to like & getrecommendations! Published in 2019 at "Theoretical and Computational Fluid Dynamics"
DOI: 10.1007/s00162-019-00496-w
Abstract: The temporal evolution of the initial shock front and the low Mach regime produced behind the front due to the sudden introduction of a spherical, finite-size, low Biot number, uniformly heated energy source in a… read more here.
Keywords: size effects; compressibility finite; finite size; low mach ... See more keywords
An Accurate Sharp Interface Method for Two-Phase Compressible Flows at Low-Mach Regime
Sign Up to like & getrecommendations! Published in 2019 at "Flow, Turbulence and Combustion"
DOI: 10.1007/s10494-020-00125-1
Abstract: An accurate numerical approach is presented for computing two-phase flows with surface tension at low-Mach regime. To develop such a model, where slight compressible effects are taken into account as well as correct thermodynamical closures,… read more here.
Keywords: phase; low mach; two phase; mach regime ... See more keywords
Low Mach preconditioned density-based methods with implicit Runge–Kutta schemes in physical-time
Sign Up to like & getrecommendations! Published in 2021 at "Journal of The Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-021-03055-9
Abstract: As far as the authors are aware, low Mach preconditioned density-based methods found in the peer-reviewed literature only employ multi-step schemes for physical-time integration. This essentially limits the maximum achievable temporal accuracy-order of these methods… read more here.
Keywords: mach; time; mach preconditioned; density based ... See more keywords
One-dimensional turbulence investigation of variable density effects due to heat transfer in a low Mach number internal air flow
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Heat and Fluid Flow"
DOI: 10.1016/j.ijheatfluidflow.2019.108481
Abstract: Abstract A novel spatial formulation of the One-Dimensional Turbulence (ODT) model is applied to a vertical pipe-flow with heat transfer, analogous to the Direct Numerical Simulation (DNS) performed by Bae et al. [Phys. Fluids 18, (075102)… read more here.
Keywords: variable density; low mach; formulation; number ... See more keywords
Nonexistence of low-Mach irrotational inviscid flows around polygons
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Differential Equations"
DOI: 10.1016/j.jde.2016.11.014
Abstract: Abstract Consider inviscid flows around any bounded simple polygon. For sufficiently small but nonzero Mach number, irrotational flows do not exist. read more here.
Keywords: mach irrotational; nonexistence low; low mach; flows around ... See more keywords
Pressure-based integral formulations of Lighthill–Curle's analogy for internal aeroacoustics at low Mach numbers
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2017.01.030
Abstract: Abstract The use of unsteady incompressible-flow simulations has become very popular for aeroacoustic noise predictions at low Mach numbers, as it provides a good compromise between computational time and reliable predictions. The acoustic radiation of… read more here.
Keywords: low mach; lighthill curle; curle analogy; mach numbers ... See more keywords
Low Mach number limit on thin domains
Sign Up to like & getrecommendations! Published in 2020 at "Nonlinearity"
DOI: 10.1088/1361-6544/ab52df
Abstract: We consider the compressible Navier-Stokes system describing the motion of a viscous fluid confined to a straight layer $\Omega_{\delta}=(0,\delta)\times\mathbb{R}^2$. We show that the weak solutions in the 3D domain converge strongly to the solution of… read more here.
Keywords: limit thin; thin domains; low mach; number ... See more keywords