Results 111 to 120 of about 444,432 (419)

A dynamic model for nozzle clog monitoring in fused deposition modelling

open access: yes, 2017
Purpose Fused deposition modelling (FDM) is one of the most popular additive manufacturing processes, and is widely used for prototyping and fabricating low-cost customized parts.
Yedige Tlegenov, Y. Wong, G. Hong
semanticscholar   +1 more source

Erratum: Underexpanded Jet Development from a Rectangular Nozzle with Aft-Deck

open access: yesAIAA Journal, 2017
An experimental study is reported of underexpanded supersonic jet plumes issuing from a high-aspect-ratio convergent rectangular nozzle. Schlieren visualization, Pitot probe, and Laser Doppler Anemometry measurements are carried out to capture the plume ...
P. Behrouzi, J. McGuirk
semanticscholar   +1 more source

Sandblasting nozzle [PDF]

open access: yes, 1981
A nozzle for use with abrasive and/or corrosive materials is formed of sintered ceramic compositions having high temperature oxidation resistance, high hardness and high abrasion and corrosion resistance.
Pawlik, E. V.   +2 more
core   +1 more source

Elliptic supersonic jet morphology manipulation using sharp-tipped lobes

open access: yes, 2020
Elliptic nozzle geometry is attractive for mixing enhancement of supersonic jets. However, jet dynamics, such as flapping, gives rise to high-intensity tonal sound.
Abhinav Anand   +6 more
core   +1 more source

Numerical simulation analysis on water jet pressure distribution at various nozzle aperture [PDF]

open access: yes, 2018
The low velocity water jet is required by small scale Unmanned Underwater Vehicle (UUV) to control its position, either to remain statics in its position or to perform a slow and steady locomotion.
Abdul Aziz, Mohd Sharizal   +5 more
core   +1 more source

Spray Deposition for Solvent Annealing of Hybrid Poly(3,4‐Ethylenedioxythiophene) Polystyrene Sulfonate Cellulose Silver Nanowire Composite Electrodes Using a Roll‐to‐Roll Coater

open access: yesAdvanced Engineering Materials, EarlyView.
The fabrication and post‐treatment via solvent annealing of poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate‐based electrodes using spray deposition in a roll‐to‐roll setup are presented. The decrease in sheet resistance and its correlation with nanostructure and molecular structure in the electrodes as a function of the processing parameters is ...
Marie Betker   +10 more
wiley   +1 more source

Numerical Investigation of the Dynamic Characteristics of a Dual-Throat-Nozzle for Fluidic Thrust-Vectoring

open access: yes, 2017
A computational method tailored for the simulation of fluidic thrust-vectoring systems is employed to investigate the dynamic response of a dual-throat nozzle in open- and closed-loop control.
M. Ferlauto, R. Marsilio
semanticscholar   +1 more source

Multi-purpose wind tunnel reaction control model block [PDF]

open access: yes, 1978
A reaction control system nozzle block is provided for testing the response characteristics of space vehicles to a variety of reaction control thruster configurations.
Daileda, J. J., Dresser, H. S.
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Subsonic Flows in a Multi-Dimensional Nozzle [PDF]

open access: yes, 2011
In this paper, we study the global subsonic irrotational flows in a multi-dimensional ($n\geq 2$) infinitely long nozzle with variable cross sections. The flow is described by the inviscid potential equation, which is a second order quasilinear elliptic equation when the flow is subsonic.
arxiv   +1 more source

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