Results 31 to 40 of about 9,803,992 (369)

Analysis of basic concepts of advanced engines for supersonic civil aircraft on the basis of foreign designers’ experience [PDF]

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2021
The work contains the results of a study of the basic design concepts of advanced engines for supersonic civil aircraft, carried out in order to make a forecast for the development of aviation technology, taking into account the experience of foreign ...
A. D. Alendar   +2 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 P clet number. We consider general equations of state and we give an application for the low Mach number limit combustion problem introduced by Majda.
openaire   +3 more sources

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.
Friedrich Kupka   +4 more
openaire   +2 more sources

Energy and Exergy Analysis and Optimization of Turbofan Engine-TF30-P414 [PDF]

open access: yesIranica Journal of Energy and Environment, 2021
The turbofan engines are one of the constitutes significant components of the aero engines. In this study, the thermodynamic modeling of the TF30-P414 turbofan engine is developed and validated with reference values.
S. D. Farahani   +2 more
doaj   +1 more source

The compressible turbulent shear layer: an experimental study [PDF]

open access: yes, 1988
The growth rate and turbulent structure of the compressible, plane shear layer are investigated experimentally in a novel facility. In this facility, it is possible to flow similar or dissimilar gases of different densities and to select different Mach ...
Papamoschou, Dimitri, Roshko, Anatol
core   +1 more source

Electron Surfing and Drift Accelerations in a Weibel-Dominated High-Mach-Number Shock. [PDF]

open access: yesPhysical Review Letters, 2017
How electrons get accelerated to relativistic energies in a high-Mach-number quasiperpendicular shock is presented by means of ab initio particle-in-cell simulations in three dimensions.
Y. Matsumoto   +3 more
semanticscholar   +1 more source

Movement Characteristics of Shock Train Under Continuous Change of Incoming Mach Number

open access: yes气体物理, 2023
In order to study the movement characteristics of shock train with the variation of incident shock, a direct-connect wind tunnel experimental system with variable incoming Mach number was built.
Zi-ao WANG   +3 more
doaj   +1 more source

On the Low Mach Number Limit for the Compressible Euler System [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2018
In this paper, we propose a new approach to singular limits of inviscid fluid flows based on the concept of dissipative measure-valued solutions.
E. Feireisl   +2 more
semanticscholar   +1 more source

Throat length effect on the flow patterns in off-design conical nozzles [PDF]

open access: yesFME Transactions, 2022
In the present work, a flow field study was performed for off-design conical nozzles with non-circular cylindrical throat sections such as those found in experimental sounding rocket motor applications. The flow field was simulated with the RANS model in
Tolentilo San Luis, Mirez Jorge
doaj   +1 more source

Zero Mach number limit of the compressible Euler–Korteweg equations

open access: yesBoundary Value Problems, 2020
In this paper, we investigate the zero Mach number limit for the three-dimensional compressible Euler–Korteweg equations in the regime of smooth solutions.
Yeping Li, Gang Zhou
doaj   +1 more source

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