Results 41 to 50 of about 628,564 (131)

Performance evaluation of an underwater body and pumpjet by model testing in cavitation tunnel

International Journal of Naval Architecture and Ocean Engineering, 2010
Experimental investigations were carried out on an Axi-symmetric Body Model fitted with Pump-jet Propulsor (PJP) in the Cavitation Tunnel at Naval Science and Technological Laboratory (NSTL).
Ch. Suryanarayana, B. Satyanarayana, K. Ramji   +2 more
doaj   +1 more source

Validation Of Numerical Procedure For Assessment Of Centrifugal Pump Cavitation Erosion [PDF]

, 2009
LectureThis paper presents validation of a novel method for assessment of the centrifugal pump cavitation erosion with two configurations of a model feed centrifugal pump: with thru shaft, and Cantilever impeller.
Timouchev, Serguei F., Panaiotti, Sergey S., Soldatov, Vladimir A., Knyazev, Vladimir A.   +3 more
core   +1 more source

Improving The Reliability Of A Decoking Jet Pump Train With A Hydrodynamic Variable Speed Drive [PDF]

, 2010
LectureDelayed coking is a refining process that consists of the upgrading of petroleum residues into lighter and more valuable hydrocarbon fractions by promoting thermal cracking on the residue stream.
Bermudez, Reinaldo
core   +1 more source

Simulation and Experimental Study of a Synthetic Jet Valveless Pump [PDF]

, 2020
A valveless microfluidic pump using a lead zirconate titanate (PZT) diaphragm actuated synthetic jet is developed and fabricated. For this present design, a valveless pump structure is developed in which the pump chamber is sealed on one side and ...
Lam Bao Dang, Ngoc, An Nguyen, Dinh, Thien Xuan, Trinh Chu Duc, Canh-Dung Tran, An Nguyen Ngoc, Duc, Trinh Chu, Tung Thanh Bui, Van Thanh Dau, Bui, Tung Thanh, Nhu, Cuong Nguyen, Tran, Canh-Dung, Thien Xuan Dinh, Dang, Lam Bao, Le Van, Luan, Van, Luan Le, Dau, Van Thanh, Cuong Nguyen Nhu, Luan Le Van   +18 more
core   +1 more source

End-User's Guide To Centrifugal Pump Rotordynamics [PDF]

, 2014
TutorialThis tutorial outlines the basics of pump rotordynamics in a form that is intended to be Machinery End User friendly. Key concepts will be defined in understandable terms, and analysis and testing options will be presented in summary form.
Marscher, William D., Marscher, Bill
core   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, Volume 43, Issue 6, Page 3868-3892, September 2026.
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, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

Micro-jet pump for micro-fluidic systems [PDF]

, 2006
A novel micro-jet pump based on the principle of macroscopic jet pump are presented. The micro-jet pump can be used very easily for sampling in micro-fluidic systems under gas actuation.
Yu XM, 李战华, Zhang DC, Li XH, 崔海航   +4 more
core   +1 more source

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

Advanced Intelligent Systems, Volume 8, Issue 8, August 2026.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

Experimental and Numerical Analysis of the Flow Inside a Configuration Including an Axial Pump and a Tubular Exchanger [PDF]

, 2010
In centrifugal and axial pumps, the flow is characterized by a turbulent and complex behavior and also by physical mechanisms such as cavitation and pressure fluctuations that are mainly due to the strong interactions between the fixed and mobile parts ...
Sofiane Khelladi, BAKIR, Farid, RAVELET, Florent, SOLIS, Moises, Moise´s Solis, KHELLADI, Sofiane, Farid Bakir, Florent Ravelet   +7 more
core   +1 more source

Protein signaling and morphological development of the tail fluke in the embryonic beluga whale (Delphinapterus leucas)

Developmental Dynamics, Volume 253, Issue 9, Page 859-874, September 2024.
Abstract Background During the land‐to‐sea transition of cetaceans (whales, dolphins, and porpoises), the hindlimbs were lost and replaced by an elaborate tail fluke that evolved 32 Ma. All modern cetaceans utilize flukes for lift‐based propulsion, and nothing is known of this organ's molecular origins during embryonic development.
L. M. Gavazzi, M. Nair, R. Suydam, S. Usip, J. G. M. Thewissen, L. N. Cooper   +5 more
wiley   +1 more source