Results 11 to 20 of about 24,572 (253)

Mach and Froude Numbers on Mars [PDF]

open access: yesThe Planetary Science Journal, 2022
Abstract Mars atmospheric global circulation models exhibit transonic jet streaks during northern winter, which motivates this study of the Mach number, Ma (the ratio of flow speed to the speed of sound), and Froude number, Fr (the ratio of flow speed to the speed of buoyancy waves), as a function of season and location.
Nasr, Camella-Rosa C.   +4 more
openaire   +1 more source

Quasiperpendicular High Mach Number Shocks [PDF]

open access: yesPhysical Review Letters, 2015
Accepted and Published in Physical Review Letters (2015)
Sulaiman, AH   +5 more
openaire   +4 more sources

Fuzzy-based prediction for suddenly expanded axisymmetric nozzle flows with microjets [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
The current research focuses on the implementation of the fuzzy logic approach for the prediction of base pressure as a function of the input parameters.
Jaimon D. Quadros   +5 more
doaj   +1 more source

An experimental validation of a nonlinear acoustic resistance model for an acoustically compact area contraction with steady mean flow [PDF]

open access: yesJASA Express Letters, 2021
In a previously published paper, a model for the nonlinear acoustic response of an area contraction including bias flow was presented. The model's prediction for the zero-driving resistance grew progressively worse as the steady-flow Mach number ...
Luke H. Humphreys   +2 more
doaj   +1 more source

A low Mach number solver: Enhancing applicability [PDF]

open access: yesJournal of Computational Physics, 2013
In astrophysics and meteorology there exist numerous situations where flows exhibit small velocities compared to the sound speed. To overcome the stringent timestep restrictions posed by the predominantly used explicit methods for integration in time the Euler (or Navier-Stokes) equations are usually replaced by modified versions.
Natalie Happenhofer   +4 more
openaire   +3 more sources

Mach number dependence of electron heating in high Mach number quasiperpendicular shocks [PDF]

open access: yesPhysics of Plasmas, 2010
The efficiency of electron heating through microinstabilities generated in the transition region of a quasiperpendicular shock for a wide range of Mach numbers is investigated by utilizing particle-in-cell (PIC) simulation and model analyses. In the model analyses saturation levels of effective electron temperature as a result of microinstabilities are
openaire   +2 more sources

A homogeneous relaxation low mach number model [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2021
In the present paper, we investigate a new homogeneous relaxation model describing the behaviour of a two-phase fluid flow in a low Mach number regime, which can be obtained as a low Mach number approximation of the well-known HRM. For this specific model, we derive an equation of state to describe the thermodynamics of the two-phase fluid.
Faccanoni, Gloria   +2 more
openaire   +1 more source

Flutter analysis of tapered composite fins: Analysis and experiment [PDF]

open access: yesFME Transactions, 2022
In the present work, the aeroelastic stability of tapered composite plates is investigated. Existing flutter models, based on the typical section approach, are reviewed for quasi-steady and unsteady low Mach number axial flows and modified for the thin ...
Dinulović Mirko   +3 more
doaj   +1 more source

Low Mach Number Flows and Combustion [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2006
We prove uniform existence results for the full Navier-Stokes equations for time intervals which are independent of the Mach number, the Reynolds number and the Péclet number. We consider general equations of state and we give an application for the low Mach number limit combustion problem introduced by Majda.
openaire   +2 more sources

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