Results 11 to 20 of about 2,396 (263)
Clusters of organic molecules in a supersonic jet expansion [PDF]
The Journal of Physical Chemistry, 1985 A wide variety of clusters were obtained in seeded supersonic conical jet expansions of organic molecules. It was shown that mixed clusters probably are formed statistically in the collisional region of the expansion, although kinetic effects cannot be excluded.
Jonkman, Harry T. +2 more
openaire +2 more sources
Aerospace, 2021 Several classical and non-classical reduced-order nucleation rate models are presented and compared to experimental values for the homogeneous nucleation rate of CO2 in supersonic nozzles.
Philip A. Lax, Sergey B. Leonov
doaj +1 more source
Effect of Supersonic Nozzle Structure on Vapor Spontaneous Condensation
Chemical Engineering Transactions, 2019 To study the effect of the supersonic nozzle structure on the spontaneous condensation of water vapor, the wet steam model used to study the wet steam liquefaction of steam turbine was introduced into the numerical study of supersonic nozzle in ...
Zhenya Duan +4 more
doaj +1 more source
Spatial mapping of low pressure cluster jets using Rayleigh scattering
Scientific Reports, 2023 In this work, we report evolution of atomic clusters in a highly under-expanded supersonic jet of Argon. A high resolution and sensitive Rayleigh scattering based experimental set-up is designed to overcome the limitations encountered in conventional set-
Milaan Patel +3 more
doaj +1 more source
Laser spectroscopy of supersonic expansions of ICL
Journal of the Chemical Society, Faraday Transactions 2, 1982 High-resolution fluorescence excitation spectra of the B3Π(0+)–X1Σ+ system of ICl, rotationally cooled in a seeded supersonic expansion, have been obtained using a single-mode c.w. dye laser. Problems due to overlap with ICl(A–X) and contaminant I2(B–X) bands, are significantly reduced by the extreme cooling and a number of previously unreported ICl(B ...
Hansen, S +3 more
openaire +2 more sources
Evolution of Supersonic Modes in Hypersonic High-Enthalpy Boundary Layer Transition
气体物理, 2023 With continuous expansion of flight speed and altitude domains, the high-temperature gas effects, especially the thermochemical non-equilibrium (TCNE) effects in hypersonic high-enthalpy boundary layers invalidated the calorically perfect gas (CPG ...
Zhou-yuan ZHAO +3 more
doaj +1 more source
PENETRATION OF A SHOCK WAVE IN A FLAME FRONT [PDF]
INCAS Bulletin, 2009 The present paper deals with the interactions between a fully supersonic flame front, situated in a supersonic two-dimensional flow of an ideal homogeneous combustible gas mixture, and an incident shock wawe, which is penetrating in the space of the hot ...
Dan PANTAZOPOL
doaj +1 more source
Direct Images of the Virtual Source in a Supersonic Expansion
The Journal of Physical Chemistry A, 2007 Direct images of the virtual source in a supersonic expansion of helium are presented. The images were obtained using a Fresnel zone plate with free-standing zones, 540 microm in diameter and with an outermost zone width of 50 nm. The general method can be extended to other beams, including seeded beams. Measurements were carried out at absolute source
REISINGER T +5 more
openaire +6 more sources
Properties of water and argon clusters developed in supersonic expansions
The Journal of Chemical Physics, 2023 Using adiabatic molecular dynamics coupled with the fluid dynamics equations, we model nucleation in an expanding beam of water vapor and argon on a microsecond scale. The size distribution of clusters, their temperature, and pickup cross sections in dependence on velocity are investigated and compared to the geometric cross sections and the experiment.
Martin Klíma +3 more
openaire +3 more sources
Expansion Waves at the Outlet of the Supersonic Two-Phase Flow Nozzle
Journal of Thermal Science and Technology, 2007 Two-phase flow nozzles are used in the total flow system of geothermal power plants and in the ejector of the refrigeration cycle, etc. One of the most important functions of the two-phase flow nozzle is converting two-phase flow thermal energy into ...
Masafumi NAKAGAWA +3 more
doaj +1 more source