Results 31 to 40 of about 3,596 (201)

Mesoscale Analysis of Cavitation and Cavitation Erosion [PDF]

, 2020
Cavitation is one of the most common types of damage in hydraulic and hydropower engineering projects. In 1941, the spillway of the Boulder Dam in the U.S. suffered cavitation and developed a deep cavitation pit of 35 m in length, 9.5 m in width, and 13.7 m in depth at the end of its ogee section as a result of the washing away of over 4500 m3 of ...
openaire   +1 more source

Prediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow Model

Journal of Fluid Science and Technology, 2010
We developed a numerical simulation code and a method of estimation for predicting the cavitation erosion in pumps. Cavitation erosion is closely related to cavitation intensity based on bubble dynamics.
Masashi FUKAYA, Yoshiaki TAMURA, Yoichiro MATSUMOTO   +2 more
doaj   +1 more source

Correlation between Mechanical Properties—Structural Characteristics and Cavitation Resistance of Rolled Aluminum Alloy Type 5083

Metals, 2023
The 5000 series aluminum alloy 5083 is distinguished by excellent processability, excellent welding characteristics, and a strong resilience to corrosion, particularly in maritime environments.
Dionisie Istrate, Ilare Bordeasu, Brândușa Ghiban, Bogdan Istrate, Beatrice-Gabriela Sbarcea, Cristian Ghera, Alexandru Nicolae Luca, Petrisor Ovidiu Odagiu, Bogdan Florea, Dinu Gubencu   +9 more
doaj   +1 more source

Prediction of Cavitation Erosion

Journal of the Society of Naval Architects of Japan, 1995
The objective of this study is to develop a procedure of predicting the cavitation erosion intensity. To this end, it is necessary to estimate impulsive forces caused by collapse of cavity bubbles. In the first report the authors measured cumulative events of impulsive forces by collapse of cavity bubbles on a two-dimensional foil with a piezoelectric ...
Akihisa Konno, Hiroharu Kato, Hajime Yamaguchi, Masatsugu Maeda   +3 more
openaire   +4 more sources

Comparison of cavitation erosion behaviors between the as-cast and friction stir processed Ni–Al bronze in distilled water and artificial seawater

Journal of Materials Research and Technology, 2021
In this investigation, the friction stir processing (FSP) method was utilized to improve the properties of the surface of the as-cast nickel aluminum bronze (NAB) alloy in two different processing parameters.
Yang Li, Ying Lian, Yanjun Sun
doaj   +1 more source

Numerical investigation on propeller cavitation performance with erosion risk under ship hull wake and oblique flow condition

Engineering Applications of Computational Fluid Mechanics
In this work, the cavitation erosion risks of PC456 propeller blades surface in a ship-propeller-rudder system under different cavitation numbers are explored.
Yu Sun, Depeng Ma, Rui Wu, Han Han, Huan Ping, Renyi Wang, Kezhong Wei   +6 more
doaj   +1 more source

Experimental Study on the Mechanism of the Combined Action of Cavitation Erosion and Abrasion at High Speed Flow

International Journal of Concrete Structures and Materials, 2019
A new experimental method on simulating the combined action of cavitation erosion and abrasion was proposed to investigate the erosion mechanism of overflow structure induced by the said processes.
X. Wang, Y. A. Hu, Z. H. Li
doaj   +1 more source

Cavitation erosion behaviour of MAB-CU4 alloy: influences of cavitation number, attack angle, time, and stand-off distance

Materials Research Express
The present study comprehensively examines the cavitation erosion behaviour of a manganese aluminium bronze alloy (MAB-CU4 alloy) as a function of several parameters (i.e., cavitation angle, cavitation number, time, and stand-off distance), particularly ...
Sedat Can Tini, Adalet Zeren, Yasemin Yıldıran Avcu, Eray Abakay, Mert Guney, Egemen Avcu   +5 more
doaj   +1 more source

Wearable Kirigami‐Apertured Capacitive Sensors for Continuous Cardiac Volumetric Monitoring

Advanced Functional Materials, EarlyView.
A wearable kirigami‐apertured carbon nanotube‐paper composite (K‐CPC) capacitive sensor enables cardiac volumetric monitoring. The kirigami process creates a central aperture with cantilevered fibers that confine the electric field, enhancing both sensitivity and lateral resolution.
Yu‐Jen Cheng, Shawn Kim, Jonathan Avery, Younghoon Kwon, Jae‐Hyun Chung   +4 more
wiley   +1 more source

Hybrid Amyloid–Boron Nitride Aerogels for Lightweight Sound Insulation

Advanced Materials, EarlyView.
Amyloid fibrils template the mild formation of boron nitride–rich hybrid aerogels with hierarchical porosity, enhanced BN‐like ordering, and fibril‐reinforced mechanics. These ultralight materials combine thermal stability with strong sound absorption and transmission loss, offering a sustainable bio‐assisted route toward lightweight acoustic shields ...
Mohammad Peydayesh, Andrin Lustgarten, Stefan Schoenwald, Enrico Boschi, My Hanh Bui, Ali Miserez, Felix Donat, Christoph R. Müller, Raffaele Mezzenga   +8 more
wiley   +1 more source