Results 31 to 40 of about 4,206,932 (358)

Characteristics of Air Impingement From an Orifice on a Target Plate [PDF]

Engineering and Technology Journal, 2013
The present work is an experimental and numerical CFD study of air impingement from orifices of different sizes in the range of (10-40) mm with a step increase of 10 mm.
Adnan A. Abdul Rasool
doaj   +1 more source

Study of Effect of Convergence Section Geometric on the Performance of a Sonic Nozzle [PDF]

Journal of Applied Fluid Mechanics
Critical flow Venturi nozzles (toroidal, cylindrical, convergent–divergent, or    C–D) nozzles) have discharge coefficients predicted through numerical and experimental investigations.
F. A. Kassem, A. A. Zahran, M. Adel
doaj   +1 more source

Vortex shedding in a two-dimensional diffuser: theory and simulation of separation control by periodic mass injection [PDF]

, 2004
We develop a reduced-order model for large-scale unsteadiness (vortex shedding) in a two-dimensional diffuser and use the model to show how periodic mass injection near the separation point reduces stagnation pressure loss.
Colonius, Tim, Pirozzoli, Sergio, Suzuki, Takao   +2 more
core   +1 more source

OPTIMIZED CONTROLLER DESIGN FOR A BLOWDOWN SUPERSONIC WIND TUNNEL BY USING GENETIC ALGORITHM [PDF]

مجله مدل سازی در مهندسی, 2017
Blowdown Supersonic Wind Tunnels (SWTs) are generally operated with a constant stagnation pressure in the settling chamber, with control usually provided by one or more pressure regulators or control valves. In this paper, first, a Simulink block diagram
Mehradad Bazazzadeh, mojtabah Dehghan Manshadi, amin nazarian shahrbabaki, ali shahriari   +3 more
doaj   +1 more source

Analysis of the forces driving the oscillations in 3D fluidic oscillators [PDF]

, 2019
One of the main advantages of fluidic oscillators is that they do not have moving parts, which brings high reliability whenever being used in real applications.
Baghaei, Masoud, Bergadà Granyó, Josep Maria   +1 more
core   +2 more sources

Estimation of stagnation performance metrics in magnetized liner inertial fusion experiments using Bayesian data assimilation

Physics of Plasmas, 2022
We present a new analysis methodology that allows for the self-consistent integration of multiple diagnostics including nuclear measurements, x-ray imaging, and x-ray power detectors to determine the primary stagnation parameters, such as temperature ...
P. Knapp, M. Glinsky, M. Schaeuble, C. Jennings, M. Evans, J. Gunning, T. Awe, G. Chandler, M. Geissel, M. Gomez, K. Hahn, S. Hansen, E. Harding, A. Harvey-Thompson, S. Humane, B. T. Klein, M. Mangan, T. Nagayama, A. Porwitzky, D. E. Ruiz, P. Schmit, S. Slutz, I. Smith, M. Weis, D. Yager-Elorriaga, D. Ampleford, K. Beckwith, T. Mattsson, K. Peterson, D. Sinars   +29 more
semanticscholar   +1 more source

One-dimensional radiation-hydrodynamic scaling studies of imploding spherical plasma liners [PDF]

Physics of Plasmas 18, 072705 (2011), 2011
One-dimensional radiation-hydrodynamic simulations are performed to develop insight into the scaling of stagnation pressure with initial conditions of an imploding spherical plasma shell or "liner." Simulations reveal the evolution of high-Mach-number (M), annular, spherical plasma flows during convergence, stagnation, shock formation, and disassembly,
arxiv   +1 more source

Increasing stagnation pressure and thermonuclear performance of inertial confinement fusion capsules by the introduction of a high-Z dopant

Physics of Plasmas, 2018
Inertial confinement fusion requires the inertia of the imploding mass to provide the necessary confinement such that the core reaches adequate high density, temperature, and pressure. Experiments utilize low-Z capsules filled with hydrogenic fuel, which
L. B. Berzak Hopkins, L. Divol, C. Weber, S. Le Pape, N. Meezan, J. S. Ross, R. Tommasini, S. Khan, D. Ho, J. Biener, E. Dewald, C. Goyon, C. Kong, A. Nikroo, A. Pak, N. Rice, M. Stadermann, C. Wild, D. Callahan, O. Hurricane   +19 more
semanticscholar   +1 more source

Recovery of steady rotational wave profiles from pressure measurements at the bed [PDF]

, 2023
We derive equations relating the pressure at a flat seabed and the free-surface profile for steady gravity waves with constant vorticity. The resulting set of nonlinear equations enables the recovery of the free surface from pressure measurements at the bed.
arxiv   +1 more source

Experimental Study on Critical Flow of Supercritical CO2 at Steady State and Model Verification

Yuanzineng kexue jishu, 2022
When the loss of coolant accident happens in a reactor, because of the high temperature and high pressure in the reactor and the low external pressure, the critical flow may occur at the break due to sharp depressurization and vaporization.
LI Weiqing;ZHANG Dongxu;ZHAO Minfu
doaj