Results 11 to 20 of about 6,510 (259)
Shock and Vibration, 2022 Self-excited oscillating pulsed cavitation jet has many advantages, such as easy operation, simply maintenance, and low investment costs. Based on the structural parameters of the traditional Helmholtz and organ pipe single-chamber self-excited ...
Dongyan Shi +3 more
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Effect of Nozzle Outlet Shape on Cavitation Behavior of Submerged High-Pressure Jet
Machines, 2021 A submerged high-pressure water jet is usually accompanied by severe cavitation phenomenon. An organ pipe nozzle can greatly improve the cavitation performance of the jet, making use of the self-excited oscillation of the flow.
Gaowei Wang +5 more
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Energies, 2021 Supercritical carbon dioxide (SCO2) jets are a promising method to assist drilling, enhance oil–gas production, and reduce greenhouse gas emissions. To further improve the drilling efficiency of SCO2 jet-assisted drilling, organ-pipe nozzles were applied
Mengda Zhang +2 more
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Sound Intensity Distribution Around Organ Pipe
Archives of Acoustics, 2016 The aim of the paper was to compare acoustic field around the open and stopped organ pipes. The wooden organ pipe was located in the anechoic chamber and activated with a constant air flow, produced by an external air-compressor. Thus, a long-term steady
Piotr ODYA +3 more
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Journal of Advanced Dielectrics, 2023 The theory and application of resonances and vibrational modes are part of the foundation of science. In this contribution, examples of acoustical resonators are highlighted, and compared to electromagnetic modes.
Gunnar Gidion +3 more
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Development of an Earthworm-Based Intestinal Soft Robot Equipped with a Gripper
Machines, 2022 An endoscopy is a tool that is used to examine the interior of a hollow organ or cavity of the body by inserting directly into the organ. However, intestinal endoscopy is not friendly to patients due to discomfort, and it can easily cause intestinal ...
Gongxin Li +4 more
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Archives of Acoustics, 2015 The paper presents experimental results of the visualization of the nonlinear aeroacoustic sound generation phenomena occurring in organ flue pipe. The phase-locked particle image velocimetry technique is applied to visualize the mixed velocity field in ...
Witold MICKIEWICZ
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The Dependence of Flue Pipe Airflow Parameters on the Proximity of an Obstacle to the Pipe’s Mouth
Sensors, 2021 This paper describes the influence of the presence of an obstacle near the flue pipe’s mouth on the air jet, which directly affects the parameters of the sound generated by the flue pipe. Labial pipes of the most common types of mouth were tested.
Damian Węgrzyn +2 more
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Synchronization of organ pipes [PDF]
The European Physical Journal B, 2018 We investigate synchronization of coupled organ pipes. Synchronization and reflection in the organ lead to undesired weakening of the sound in special cases. Recent experiments have shown that sound interaction is highly complex and nonlinear, however, we show that two delay-coupled Van-der-Pol oscillators appear to be a good model for the occurring ...
Sawicki, Jakub +2 more
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Cavitation Impact Characteristics of Organ-Pipe Nozzle Under Gas Hydrate Reservoir Conditions
Shiyou jixie, 2023 In order to improve the application effect of cavitation jet technology in the gas hydrate reservoir stimulation, the numerical simulation and experimental study were carried out to study the cavitation impact characteristics of organ-pipe nozzle-the key
Zhang Xin +3 more
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