Results 21 to 30 of about 179,245 (211)

Numerical Simulation of Nozzle Flow Field with Secondary Injection Thrust Vector Control

MATEC Web of Conferences, 2018
Numerical simulations are performed to characterize the secondary injection thrust vector control. For this objective the following measurements were taken: considering the flow to be compressible and turbulent using Realizable k-ε turbulence model ...
Noaman H.R., Bin Tang Hai, Khalil Elsayed   +2 more
doaj   +1 more source

Impinging Performance of High-Pressure Water Jets Emitting from Different Nozzle Orifice Shapes

Geofluids, 2020
The impinging pressure of a water jet is a key factor in engineering applications, and the jet shape has a great influence on this pressure. In this paper, five different nozzle shapes were designed, and impacting tests were conducted based on a self ...
Fei Huang, Jianyu Mi, Dan Li, Rongrong Wang   +3 more
doaj   +1 more source

Evaluation of Influencing Factors in Cleaning Performance for Bio-Fouling Removal Based on High-Pressure Water Jets

Journal of Marine Science and Engineering
Regular inspections and hull cleanings are essential to prevent bio-fouling on ships. However, traditional cleaning methods such as brush cleaning and high-pressure water-jet cleaning at docks are ineffective in cleaning niche areas like bow thrusters ...
Jaehyeon Ahn, Kaicheng Yan, Salim Abdullah Bazher, Jungkeun Oh, Daewon Seo, Su-gil Cho, Hyungwoo Kim   +6 more
doaj   +1 more source

Analysis of flow-field in a dual mode ramjet combustor with boundary layer bleed in isolator

Propulsion and Power Research, 2021
A two-dimensional Reynolds averaged Navier Stokes (RANS) simulation of a dual mode ramjet (DMRJ) combustor is performed, modeling the University of Michigan dual-mode combustor experimental setup operating in reacting mode with different equivalence ...
Nishanth Thillai, Amit Thakur, Srikrishnateja K., Dharani J.   +3 more
doaj   +1 more source

Magnetic Reconnection with Asymmetry in the Outflow Direction [PDF]

, 2009
Magnetic reconnection with asymmetry in the outflow direction occurs in the Earth's magnetotail, coronal mass ejections, flux cancellation events, astrophysical disks, spheromak merging experiments, and elsewhere in nature and the laboratory.
Aurass, Aurass, Bemporad, Bemporad, Birn, Birn, Birn, Borovsky, Borovsky, Brown, C. R. Sovinec, Cassak, Cassak, Cassak, Cassinelli, Chae, Chen, Chen, Ciaravella, Ciaravella, Cothran, Ding, Drake, Eriksson, Galsgaard, Galsgaard, Goedbloed, Gontikakis, Hesse, Hesse, Hooper, Innes, Inomoto, Kiehas, Kiehas, Ko, Kopp, Kuznetsova, La Belle-Hamer, Laitinen, Laitinen, Lazarian, Lee, Lin, Lin, Lin, Lin, Lin, Litvinenko, Litvinenko, Liu, Lui, Martin, Mozer, Mozer, Murphy, N. A. Murphy, Nakajima, Nakamura, Nakamura, Oka, Ono, Owen, Owen, P. A. Cassak, Parker, Parker, Petrukovich, Priest, Pritchett, Reeves, Rogers, Roussev, Runov, Saint-Hilaire, Schettino, Servidio, Shibata, Shimizu, Shiokawa, Sovinec, Sullivan, Sweet, Swisdak, Tanaka, Townsend, ud-Doula, ud-Doula, Vršnak, Wang, Wilkinson, Xing, Yamada, Zhu, Øieroset   +94 more
core   +3 more sources

Research on flow field characteristic of close-coupled gas atomizing nozzles

Fenmo yejin jishu
The atomization nozzle is the core component for the metal powder preparation by close-coupled gas atomization method. The pressure at the tip of the melt delivery tube and the stagnation point is very important for the smooth outflow of the molten metal
BAN Wei, CHEN Jiaqi, LIU Lulu, GE Tao, ZHANG Shuai   +4 more
doaj   +1 more source

Definition of vortex boundary using stagnation pressure

Physical Review Fluids
A novel method is proposed to identify vortex boundary and center of rotation based on tubular surfaces of constant stagnation pressure and minimum of the stagnation pressure gradient. The method is derived from Crocco's theorem, which ensures that the gradient of stagnation pressure is orthogonal to both the velocity and vorticity vectors.
Marc Plasseraud, Krishnan Mahesh
openaire   +2 more sources

Analytical and Numerical Study on Irradiate Ignition of Solid Combustibles in Sub-Atmospheric Pressure

Journal of Thermal Science and Technology, 2008
The aim of the present study is to understand the basics of spontaneous ignition of irradiated solid combustibles in sub-atmospheric pressure via analytical and numerical approaches.
Yuji NAKAMURA
doaj   +1 more source

Normal pressure hydrocephalus (NPH): ischaemia, CSF stagnation or both [PDF]

Brain, 2004
Normal pressure hydrocephalus (NPH) is a clinical and radiographic syndrome first described by Hakim and Adams in 1965 (Hakim and Adams, 1965) and characterized clinically by gait apraxia (‘magnetic gait’), incontinence and dementia, and diagnosed predominantly among people over the age of 60 years. Only a minority of patients present with the complete
openaire   +1 more source

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

, 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., Davis, J. S., Golovkin, I. E., Hsu, S. C., MacFarlane, J. J.   +4 more
core   +1 more source