Results 61 to 70 of about 17,991 (229)

3-D axisymmetric subsonic flows with nonzero swirl for the compressible Euler-Poisson system [PDF]

, 2016
We address the structural stability of 3-D axisymmetric subsonic flows with nonzero swirl for the steady compressible Euler-Poisson system in a cylinder supplemented with non small boundary data. A special Helmholtz decomposition of the velocity field is
Bae, Myoungjean, Weng, Shangkun
core   +2 more sources

Flow Structure of a Coaxial Circular Jet with Axisymmetric and Helical Instability Modes

Journal of Fluid Science and Technology, 2011
The flow structures in a coaxial jet with axisymmetric and helical instability modes for a comparatively low Reynolds number were investigated. The flow visualization and the measurements of velocities were carried out in an open water tank. In addition,
Takahiro KIWATA, Taichi USUZAWA, Nobuyoshi KOMATSU, Shigeo KIMURA, Peter OSHKAI   +4 more
doaj   +1 more source

Thermal–Structural Assessment of a Convergent Nozzle for UAV Applications Using Advanced Steady‐State Thermal Analysis

Journal of Engineering, Volume 2026, Issue 1, 2026.
This study presents an in‐depth structural evaluation of the convergent nozzle in a microgas turbine engine (MGTE), focusing on the performance of various lightweight materials used in aerospace applications. The research investigates both structural and aerothermal characteristics of the nozzle under realistic operating conditions.
Darshan Kumar Jayaram, Gopinath Vinayagam, Beena Stanislaus Arputharaj, Vijayanandh Raja, Arpan Hazra   +4 more
wiley   +1 more source

Design of axisymmetric aerospike nozzle based on modified MOC [PDF]

Scientia Iranica, 2018
In this study a direct method based on the method of characteristics with the assumptions of non-viscous flow and thermal perfect gas is provided to design of axisymmetric plug nozzle. Inputs for numeric code are including output Mach number, specific heat ratio, global gas constant and the number of discrete steps of Prandtl–Meyer expansion fan.
Mehran Masdari, Mojtaba Tahani, Fata Mohammadi fard   +2 more
openaire   +1 more source

Probabilistic Estimation Plastic Properties of Alloy 600 From Spherical Indentation Using Surrogate‐Assisted Bayesian Inference Inverse Approach

Science and Technology of Nuclear Installations, Volume 2026, Issue 1, 2026.
Alloy 600, a nickel‐based material, is widely used in steam generator tubing and penetration nozzles of pressurized water reactors (PWRs) due to its exceptional corrosion resistance and excellent mechanical properties under high‐temperature and high‐pressure water conditions.
Kuan Zhao, ChenKang Guan, Jianlong Zhang, Shengyong Mu, Mohamed Hanfi   +4 more
wiley   +1 more source

Exposure to the Role of Primary Breakup Parameters of an Effervescent Atomizer Using High‐Speed Flow Visualization Techniques

Energy Science &Engineering, Volume 13, Issue 12, Page 5988-6002, December 2025.
Instabilities and Atomization Dynamics of Effervescent Liquid Sheets. ABSTRACT The study experimentally investigates the primary disintegration of a liquid sheet in an inside‐out effervescent atomizer using high‐speed flow visualization, focusing on the effects of bubbly flow.
S. Karthick, K. Balaji, R. Sakthivel, A. K. Indrajith, P. V. Elumalai, Avinash Kumar, Dhinesh Balasubramanian, Yasser Fouad, Manzoore Elahi M. Soudagar, Nasim Hasan   +9 more
wiley   +1 more source

A three-dimensional turbulent compressible flow model for ejector and fluted mixers [PDF]

A three dimensional finite element computer code was developed to analyze ejector and axisymmetric fluted mixer systems whose flow fields are not significantly influenced by streamwise diffusion effects.
Rushmore, W. L., Zelazny, S. W.
core   +1 more source

Impinging Jet Resonant Modes at Mach 1.5 [PDF]

, 2013
High speed impinging jets have been the focus of several studies owing to their practical application and resonance dominated flow-field. The current study focuses on the identification and visualization of the resonant modes at certain critical ...
Alvi, Farrukh, Davis, Timothy
core  

Numerical Study of a Supersonic Nozzle Gas Jet Laden with a Dry Powder Fire-extinguishing Agent Injected from a Bypass Injector [PDF]

Journal of Applied Fluid Mechanics
To enhance the firefighting capabilities of traditional dry powder extinguishers, we incorporated an air-assisted supersonic nozzle, which is simulated using Euler-Lagrange interphase coupling to simulate the injection of firefighting agents into a ...
L. Zhang, S. Wu, Y. Feng, H. Guan
doaj   +1 more source

Investigating the Effects of Atomic Oxygen Cold Plasma Surface Cleaning on the Oil Paint

Advanced Materials Interfaces, Volume 12, Issue 22, November 22, 2025.
This study investigates a novel cleaning technique based on the use of atomic oxygen (AO) generated in atmospheric pressure plasma, with the focus on the systematic investigation of the impact of AO on sensitive organic substrates during the cleaning action, to explore the applicability and limitations of the technique.
Kirill Shumikhin, Michalis Poupouzas, Yijia Song, Celia Duce, Silvia Pizzimenti, Antonella Manariti, Tomas Markevicius, Klaas Jan van den Berg, Ana Sobota, Anton Nikiforov, Rino Morent, Ilaria Bonaduce   +11 more
wiley   +1 more source