Results 51 to 60 of about 4,183,596 (242)

Comment on “Jet propulsion by microwave air plasma in the atmosphere” [AIP Adv. 10, 055002 (2020)]

open access: yesAIP Advances, 2020
In this Comment, we analyze the performance of a microwave plasma device presented by Ye et al. [AIP Adv. 10, 055002 (2020)]. The efficiency analysis, using conservation of energy, shows that the methods used by the original authors predict up to 8000 ...
Peter L. Wright   +3 more
doaj   +1 more source

AN INVESTIGATION OF LIQUID METAL AND GAS FLOW CHARACTERISTICS IN CONFINED ATOMIZATION NOZZLE

open access: yesJournal of Engineering, 2005
Supersonic gas jets in confined liquid metal atomizing nozzle were studied by using the method of characteristics. Nitrogen at operation (stagnation) pressure of (1.65Mpa) was used in the study, with three different values of ambient pressure (1.25, 1 ...
Ihsan Y. Hussain
doaj   +1 more source

COLD SPRAY DEPOSITION EFFICIENCY CONTROL OF PROTECTIVE AND RESTORATIVE COATINGS ON MAGNESIUM ALLOYS

open access: yesАвіаційно-космічна техніка та технологія, 2018
The crucial task of developing the technology of low pressure cold gas–dynamic spraying and its wide application in the aviation, automotive and other industries is the possibility of obtaining coatings with given properties and deposition efficiency as ...
Александр Владимирович Шоринов   +1 more
doaj   +1 more source

Influencing factors in the stagnation of the Baiu front that induced heavy rainfall in July 2020 over Kyushu, Japan

open access: yesScientific Reports, 2023
The influencing factors of the long-term stagnation of the Baiu front that induced heavy rainfall in July 2020 over Kyushu, Japan, were examined. In July 2020, the position of the Baiu front from a weather chart at 130° E remained stationary over Kyushu ...
Qoosaku Moteki
doaj   +1 more source

One-dimensional radiation-hydrodynamic simulations of imploding spherical plasma liners with detailed equation-of-state modeling

open access: yes, 2012
This work extends the one-dimensional radiation-hydrodynamic imploding spherical argon plasma liner simulations of T. J. Awe et al. [Phys. Plasmas 18, 072705 (2011)] by using a detailed tabular equation-of-state (EOS) model, whereas Awe et al.
Cassibry, J. T.   +4 more
core   +1 more source

Optimization of operating conditions in the steam turbine blade cascade using the black-box method

open access: yesPropulsion and Power Research, 2023
Water droplets cause corrosion and erosion, condensation loss, and thermal efficiency reduction in low-pressure steam turbines. In this study, multi-objective optimization was carried out using the black-box method through the automatic linking of a ...
Vahid Sadrian   +5 more
doaj  

Control of Reynolds number in a high speed wind tunnel [PDF]

open access: yesJournal of Aerospace Technology and Management, 2009
A conceptual control model for the Reynolds number test based on isentropic relations was established for the supersonic wind tunnel. Comparison of the system response of the model simulation and the actual wind tunnel test data was made to design the ...
Maurício G. Silva   +2 more
doaj  

Drag and pressure fields for the MHD flow around a circular cylinder at intermediate Reynolds numbers

open access: yesJournal of Applied Mathematics, 2005
Steady incompressible flow around a circular cylinder in an external magnetic field that is aligned with fluid flow direction is studied for Re (Reynolds number) up to 40 and the interaction parameter in the range 0≤N≤15 (or 0≤M≤30), where M is the ...
T. V. S. Sekhar   +2 more
doaj   +1 more source

Evaluation of the aerothermodynamic field produced by a pseudospheric body of mercury type at M = 22.6 flying in air in thermodynamic equilibrium

open access: yesAnnals of Geophysics, 1963
Tlie differential equations valid after tlie shock are first<br />given in curvilinear coordinates; the cbosen unknowns are the two velocity<br />components and the entropy and enthalpy.
S. ANGELUCCI, D. CUNSOLO
doaj   +1 more source

Computational Analysis on the Performance of Centrifugal Compressor with Tapered Wall and Rotating Tapered Wall Vaneless Diffuser

open access: yesJournal of Applied Fluid Mechanics, 2021
Computational analysis is performed on a centrifugal compressor fitted with tapered vaneless diffuser in order to increase the rate of diffusion. The main parameter involved in the present study is the wall taper angle of the diffuser, which is varied ...
P. Niveditha, B. V. S. S. S Prasad
doaj  

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