Results 31 to 40 of about 845 (133)
Novel Nozzle Shapes for Synthetic Jet Actuators Intended to Enhance Jet Momentum Flux
Actuators, 2018 An axisymmetric synthetic jet actuator based on a loudspeaker and five types of flanged nozzles were experimentally tested and compared. The first (reference) type of nozzle was a common sharp-edged circular hole. The second type had a rounded lip on the
Jozef Kordík, Zdeněk Trávníček
doaj +1 more source
International Journal of Coal Science & Technology, 2020 To simulate the transonic atomization jet process in Laval nozzles, to test the law of droplet atomization and distribution, to find a method of supersonic atomization for dust-removing nozzles, and to improve nozzle efficiency, the finite element method
Tian Zhang +5 more
doaj +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Magnetic soft robots offer promise in biomedicine due to their wireless actuation and rapid response, but current fabrication methods are complex and have limited cellular compatibility. A new, contactless bioassembly strategy using hydrodynamic instabilities is introduced, enabling customizable, centimeter‐scale robots.
Wei Gao +5 more
wiley +1 more source
Actuation Strategies for Underwater Jet‐Propelled Soft Robots
Journal of Field Robotics, EarlyView.ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone +3 more
wiley +1 more source
Jet flow issuing from an axisymmetric pipe-cavity-orifice nozzle
EPJ Web of Conferences, 2016 An axisymmetric air jet flow is experimentally investigated under passive flow control. The jet issues from a pipe of the inner diameter and length of 10 mm and 150 mm which is equipped with an axisymmetric cavity at the pipe end.
Broučková Zuzana +3 more
doaj +1 more source
Transonic Flow Field Analysis of a Minimum Nozzle Length Rocket Engine [PDF]
INCAS BulletinThe aim of this paper is to develop a profile of axisymmetric minimum length nozzle giving a uniform and parallel flow at the exit section. The study is done at high temperature, lower than the dissociation threshold of the molecules.
Omar ABADA, Hakim KBAB, Sidali HAIF
doaj +1 more source
Characteristics of Oscillation in Cavity of Helmholtz Nozzle Generating Self-excited Pulsed Waterjet
Chinese Journal of Mechanical Engineering, 2022 Cavity flow oscillations in the axisymmetric cavity are critical to the operating efficiency of self-excited pulsed waterjets, which are widely employed in many practical applications.
Miao Yuan +4 more
doaj +1 more source
Binary‐Solvent‐Programmed Single‐Step Inkjet Printing of Self‐Confined Micro‐Inlaid OLED Arrays
Small Methods, EarlyView.Solvent‐programmed micro‐inlay inkjet printing enables lithography‐free, high‐resolution μ‐OLED arrays in a single step. A thermodynamically tuned 3:1 (w/w) chloroform/dichloroethane blend not only drives interfacial phase separation between the solute and polymers but also stabilizes droplet ejection, forming rim‐confined emissive domains in one pass.
JaeWoo Park +5 more
wiley +1 more source
Bath Vibration During Open Eye Formation in a Physical Model of a Steelmaking Ladle
steel research international, EarlyView.Using a physical model, this study shows that vibration measurements reliably predict open eye size in steelmaking ladles, offering a practical alternative to visual monitoring. Vessel vibrations stabilize faster than the open eye, except at high frequencies near the bottom.
Mika Pylvänäinen +6 more
wiley +1 more source
工程科学与技术, 2014 :Micro laval nozzle has been widely used in such areas as micro propulsion system, supersonic air-jet pulverization,laser cutting,etc.The gas flow characteristics for micro nozzles with different section shapes and different divergent section lengths ...
蔡玉奎, 刘战强, 万熠
doaj