Results 21 to 30 of about 62,025 (300)

Impinging jets array: an experimental investigation and numerical modeling [PDF]

E3S Web of Conferences, 2019
This paper reports on the measurements of wall shear stress and static pressure along a smooth static wall upon which jet impingement occurs. The effect of a single circular jet, respectively an array of jets is studied using a high speed/resolution ...
Dhondoo Nilesh, Simionescu Ştefan-Mugur, Bălan Corneliu   +2 more
doaj   +1 more source

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

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

Novel approach to characterize the cross‐linking effect of liquid silicone rubber via cavity pressure analysis during injection molding

Journal of Applied Polymer Science, Volume 140, Issue 4, January 20, 2023., 2023
In this paper, the cross‐linking reaction during the processing of liquid silicone rubber in the injection molding process is illustrated by measuring the cavity pressure. This shows a characteristic curve when derived twice. This curve is attributable to cross‐linking. With this knowledge, processes can be optimized and costs saved.
Dennis F. Weißer, Dennis Mayer, Johannes Schmid, Matthias H. Deckert   +3 more
wiley   +1 more source

Internet usage among women‐led micro and small enterprises and household membersʼ use of the internet at home: Evidence from Indonesia during the COVID‐19 pandemic

Asia &the Pacific Policy Studies, Volume 9, Issue 3, Page 370-393, September 2022., 2022
Abstract This study examines whether internet usage among micro and small enterprises (MSEs) could influence household membersʼ use of the internet in terms of intensity as well as usage for productive activities. Using longitudinal data from MSEs in Yogyakarta, Indonesia, covering the period before and during the COVID‐19 pandemic, the study finds ...
Niken Kusumawardhani, Anna Falentina, Palmira Bachtiar, Veto Indrio   +3 more
wiley   +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

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  

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

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

Pressure anomalies beneath solitary waves with constant vorticity [PDF]

arXiv, 2022
While some works have investigated the particle trajectories and stagnation points beneath solitary waves with constant vorticity, little is known about the pressure beneath such waves. To address this gap, we investigate numerically the pressure beneath solitary waves in flows with constant vorticity.
arxiv