Results 81 to 90 of about 9,717,661 (350)
Aerodynamic Parameters Analysis of Transonic Flow Past Unswept and Swept Wings [PDF]
Engineering and Technology Journal, 2011 The transonic flow past unswept and swept wings has been studied. For this purpose the transonic potential flow equation is solved for inviscid compressible flow. The shock waves are replaced by discontinuities across which the entropy is conserved.
Raad Shehab Ahmed
doaj +1 more source
The Shocking Properties of Supersonic Flows: Dependence of the Thermal Overstability on M, alpha, and T_c/T_0 [PDF]
, 2005 We investigate the Mach number dependence of the radiative overstability of shocks. We find that the stability of radiative shocks increases with decreasing Mach number, with the result that M=2 shocks require cooling exponents < -1.2 to be overstable. The frequency of oscillation of the fundamental mode has a strong Mach number dependence.
arxiv +1 more source
The density variance - Mach number relation in isothermal and non-isothermal adiabatic turbulence [PDF]
, 2015 The density variance - Mach number relation of the turbulent interstellar medium is relevant for theoretical models of the star formation rate, efficiency, and the initial mass function of stars.
C. Nolan, C. Federrath, R. Sutherland
semanticscholar +1 more source
Optical Force Probes for Spatially Resolved Imaging of Polymer Damage and Failure
Aggregate, EarlyView.This review explores optical force probes in polymer mechanochemistry, highlighting their role in visualizing mechanical properties through force‐activated optical changes. By integrating optical force probes with high‐resolution microscopy, researchers can achieve real‐time strain mapping and precise imaging of material damage, enhancing stress ...
Berçin V. Asya +4 more
wiley +1 more source
Improving Euler Computations at Low Mach Numbers [PDF]
International Journal of Computational Fluid Dynamics, 1996 This paper consists of two parts, both dealing with conditioning techniques for low-Mach-number Euler-flow computations, in which a multigrid technique is applied. In the first part, for subsonic flows and upwind-discretized linearized 1-D Euler equations, the smoothing behavior of multigrid-accelerated point Gauss-Seidel relaxation is investigated ...
openaire +2 more sources
Coupling strategies for compressible-low Mach number flows [PDF]
Mathematical Models and Methods in Applied Sciences, 2015 In order to enrich the modeling of fluid flows, we investigate in this paper a coupling between two models dedicated to distinct regimes. More precisely, we focus on the influence of the Mach number as the low Mach case is known to induce theoretical and numerical issues in a compressible framework.
Yohan Penel +3 more
openaire +4 more sources
Effects of fuel injection speed on supersonic combustion using separation-resistant struts
AIP Advances, 2021 This paper describes the improvement in combustion efficiency achieved using streamwise vorticity and fuel injections when using hypermixer struts at high Mach numbers.
Toshihiko Hiejima, Kaito Nishimura
doaj +1 more source
The influence of the Mach number on the stability of radiative shocks [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 We study the stability properties of hydrodynamic shocks with finite Mach numbers. The linear analysis supplements previous analyses which took the strong shock limit. We derive the linearised equations for a general specific heat ratio as well as temperature and density power-law cooling functions, corresponding to a range of conditions relevant to ...
Babulakshmanan Ramachandran +2 more
openaire +3 more sources
DESIGN PARAMETERS OF CENTRIFUGAL COMPRESSOR INDUCER
Pamukkale University Journal of Engineering Sciences, 1998 Design characteristics of centrifugal compressor impellers working with compressible fluids are analyzed, and the design parameters of inducer are defined.
Saim KOÇAK
doaj
Low Mach number flows, and combustion [PDF]
arXiv, 2005 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\'eclet number. We consider general equations of state and we give an application for the low Mach number limit combustion problem introduced by Majda.
arxiv