Results 11 to 20 of about 29,230 (218)

Effects of local reinforcement on nozzles in dished ends [PDF]

open access: yes, 2009
The results of a parametric design study, to determine the optimum diameter of reinforcing pad for nozzles in the knuckle region of an ellipsoidal pressure vessel head are presented herein.
Hitchen, J, Nash, D H
core   +3 more sources

Design of nozzles for surface mount technologies produced by additive manufacturing [PDF]

open access: yes, 2023
The increasing use and production of electronic systems, equipped with multiple PCBs, leads to constant development in manufacturing technologies. A predominant choice in PCB production is Surface Mount Technology (SMT).
Pontes, A. J.   +2 more
core   +1 more source

Flow Separation in Rocket Nozzles, a Simple Criteria [PDF]

open access: yes, 2005
Cold and hot flow tests were conducted to investigate the flow separation in rocket nozzles. The results are presented. A separation data base including a wide range of literature data is established to evaluate the influence of propellant combination ...
Ralf Stark, Stark, Ralf
core   +1 more source

Experimental and numerical study of heat flux in dual bell nozzles [PDF]

open access: yes, 2011
The characteristic contour inflection of a dual bell nozzle is the key to altitude adaption. In sea level conditions, it forces the flow to a symmetrical separation, limiting the side load generation and increasing the thrust.
Gernoth, Andreas   +5 more
core   +1 more source

Finite element analysis applied to redesign of submerged entry nozzles for steelmaking [PDF]

open access: yes, 2011
The production of steel by continuous casting is facilitated by the use of refractory hollow-ware components. A critical component in this process is the submerged entry nozzle (SEN).
Ewing, Helen, Nash, David, Hendry, Alan
core   +4 more sources

A Simple Low Cost Water Sprinkling Nozzle For Field Crop Irrigation

open access: yes, 2014
For lowcost pressurized irrigation system for field crops, researchers and manufacturers are continuously in the quest to develop a simple,lowcost nozzle which requires low operating pressure,and can be manufactured using relatively unsophisticated manufacturing facilities and locally available resources.
Rahman, Atiqur Rahman, Singh, AK
openaire   +2 more sources

Numerical and experimental hydrodynamic study of a coolant distributor for grinding applications

open access: yesEngineering Applications of Computational Fluid Mechanics, 2016
In grinding, the high frictional energy is converted into heat, which may cause thermal damage and degradation of the wheel and the workpiece. Unwanted thermal effects must thus be reduced, often by external cooling using a curved-duct coolant ...
Tala Moussa   +3 more
doaj   +1 more source

Modeling Urban Sprinkling with Cellular Automata [PDF]

open access: yes, 2020
peer reviewedThis paper presents a spatiotemporal analysis to simulate and project urban sprinkling with coupled cellular automata (CA) and multinomial logistic regression (MLR) model.
Saganeiti, Lucia   +7 more
core   +2 more sources

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

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