Results 11 to 20 of about 9,153 (265)
Algorithms, 2022 Uncertainty quantification has proven to be an indispensable study for enhancing reliability and robustness of engineering systems in the early design phase.
Sihmehmet Yildiz +2 more
doaj +1 more source
Subsonic and Supersonic Jets and Supersonic Suppressor Characteristics [PDF]
Aeroacoustics Conference, 1975 Convergent and parallel flow nozzles were used with room temperature air to investigate the flow and acoustic characteristics over a Mach number range of 0.6 to 1.5. For subsonic jets the maximum sound pressure levels occurred at 19.1 from the axis and the sound pressure level decreased monotonically with increasing angle.
H. NAGAMATSU, R. SHEER, JR.
openaire +2 more sources
MIXING IN SUPERSONIC TURBULENCE [PDF]
The Astrophysical Journal, 2010 In many astrophysical environments, mixing of heavy elements occurs in the presence of a supersonic turbulent velocity field. Here we carry out the first systematic numerical study of such passive scalar mixing in isothermal supersonic turbulence. Our simulations show that the ratio of the scalar mixing timescale, $τ_{\rm c}$, to the flow dynamical ...
Pan, Liubin, Scannapieco, Evan
openaire +2 more sources
Dynamic stability of heated geometrically irregular cylindrical shell in supersonic gas flow
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018 On the basis of the Love model, a geometrically irregular heated cylindrical shell blown by a supersonic gas flow from one of its main surfaces is considered.
Grigory N Belostochnyi, Olga A Myltcina
doaj +1 more source
A Review of Studies on Ramjet and Scramjet Engines from an Energy–exergy Viewpoint [PDF]
فناوری در مهندسی هوافضا, 2021 The second law of thermodynamics and exergy is an important issue in the analysis of propulsion systems that have been highly regarded by researchers in recent years. Studies show that the analysis of the first law in air propulsion systems alone has low
Jamasb Pirkandi, AliReza Zolfi
doaj +1 more source
Aerospace, 2018 The aim of this work is to highlight the significance of Fluid–Thermal–Structural Interaction (FTSI) as a diagnosis of existing designs, and as a means of preliminary investigation to ensure the feasibility of new designs before conducting experimental ...
Kalyani Bhide +2 more
doaj +1 more source
Mach Fronts in Random Media with Fractal and Hurst Effects
Fractal and Fractional, 2021 An investigation of transient second sound phenomena due to moving heat sources on planar random media is conducted. The spatial material randomness of the relaxation time is modeled by Cauchy or Dagum random fields allowing for decoupling of fractal and
Junren Ran +2 more
doaj +1 more source
The Supersonic Project: To Cool or Not to Cool Supersonically Induced Gas Objects (SIGOs)? [PDF]
The Astrophysical Journal, 2021 Abstract Supersonically induced gas objects (SIGOs) primarily form in the early universe, outside of dark matter halos due to the presence of a relative stream velocity between baryons and dark matter. These structures may be the progenitors of globular clusters.
Yeou S. Chiou +4 more
openaire +4 more sources
Numerical Analysis of Aerodynamic Interference of Two Passing Cylindrical Bodies at Supersonic Speeds [PDF]
مکانیک هوافضا, 2023 Aerodynamic interference is one of the phenomena that occurs when two flying objects pass near each other. In this case, the change in the pressure distribution on objects passing near each other causes a change in the aerodynamic forces.
Mohammad Ali Ranjbar +2 more
doaj
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