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Journal articles on the topic 'Super-Cavitation'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

S, Goutham. "Effect of Super Cavitation Effect on AUVs." International Journal for Research in Applied Science and Engineering Technology 6, no. 1 (2018): 921–33. http://dx.doi.org/10.22214/ijraset.2018.1139.

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2

Yang, Ying, and Jing Hua Dai. "Experimental Investigation on Cavitation Characteristics of a Three-Groove Journal Bearing." Applied Mechanics and Materials 420 (September 2013): 47–50. http://dx.doi.org/10.4028/www.scientific.net/amm.420.47.

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Under high and super-high speed, oil film of the journal bearing is easy to crack and then becomes cavitation. The existence of cavitation has an important effect on the work characteristics of the shaft. On the journal bearing experiment rig the cavitation characteristics of the three-groove journal beaing were studied. The influences of the shaft rotating speed and supply pressure on cavitation shape were investigated. The results show that rotating speed and supply pressure have a clear effect on the cavitation shape, and the number of cavitation strip in the rupture zone decreases when the

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3

Yang, Ying, Jing Hua Dai, and Xu Li. "Experimental Research on Cavitation Characteristics of a Novel Hybrid Journal Bearing." Applied Mechanics and Materials 420 (September 2013): 74–77. http://dx.doi.org/10.4028/www.scientific.net/amm.420.74.

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Under high and super high speed, the oil film of a journal bearing is easy to crack and then becomes cavitation. The existence of cavitation has a great effect on the work performance of the bearing. The cavitation mechanism of a spiral oil wedge journal bearing was investigated on the experimental rig. The effects of rotating speed and supply pressure on the cavitation shape of oil film and the number of cavitation strip in the rupture zone were analyzed. The results show that the cavitation shape of oil film is a long strip. The number of cavitation strip increases when supply pressure has b

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4

Ahn, Jong-Woo, Gun-Do Kim, Bu-Geun Paik, and Kyoung-Youl Kim. "Development of the Driving Pump for the Super-cavitation & High-speed Cavitation Tunnel." Journal of the Society of Naval Architects of Korea 55, no. 2 (2018): 153–60. http://dx.doi.org/10.3744/snak.2018.55.2.153.

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5

Ravelet, Florent, Amélie Danlos, Farid Bakir, Kilian Croci, Sofiane Khelladi, and Christophe Sarraf. "Development of Attached Cavitation at Very Low Reynolds Numbers from Partial to Super-Cavitation." Applied Sciences 10, no. 20 (2020): 7350. http://dx.doi.org/10.3390/app10207350.

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The present study focuses on the inception, the growth, and the potential unsteady dynamics of attached vapor cavities into laminar separation bubbles. A viscous silicon oil has been used in a Venturi geometry to explore the flow for Reynolds numbers ranging from Re=800 to Re=2000. Special care has been taken to extract the maximum amount of dissolved air. At the lowest Reynolds numbers the cavities are steady and grow regularly with decreasing ambient pressure. A transition takes place between Re=1200 and Re=1400 for which different dynamical regimes are identified: a steady regime for tiny c

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6

Kadivar, Ebrahim, Erfan Kadivar, Khodayar Javadi, and Seyyed Morteza Javadpour. "The investigation of natural super-cavitation flow behind three-dimensional cavitators: Full cavitation model." Applied Mathematical Modelling 45 (May 2017): 165–78. http://dx.doi.org/10.1016/j.apm.2016.12.017.

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7

Zhang, De Xin, Xue Bo Shao, Li Lou, and Lei Liu. "Optimization of Underwater Cavity's Shape." Advanced Materials Research 291-294 (July 2011): 1925–28. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.1925.

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The steady bubble shape as one of the basic research, plays a decisive role in the cavitation’s study, To study it clearly will be not only basis for the study of non-steady cavitation, but also provide the necessary basis for the design of the control for cavitation bubble. In this paper, cavity shape produced by submerged body is studied, and related to the use of foreign experimental results, super-cavitation resistance, drag reduction is discussed.

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8

Yang, Ying, Li Xu, and Wen Qing Liu. "Experimental Study on Cavitation Boundary of Journal Bearing." Applied Mechanics and Materials 378 (August 2013): 362–66. http://dx.doi.org/10.4028/www.scientific.net/amm.378.362.

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Under high and super-high speed conditions, oil film of the journal bearing is easy to crack and then becomes cavitation. The existence of cavitation has a great effect on the work characteristics of the bearing. Cavitation boundary of a three-groove journal beaing was investigated on the journal bearing experimental rig. The influences of rotating speed and supply pressure on cavitation boundary were studied. And experimental equations of reformation location and the percent of rupture area are established. The results show that rupture location of oil film is not related with rotating speed

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9

Kwok, C. T., H. C. Man, and F. T. Cheng. "Cavitation erosion of duplex and super duplex stainless steels." Scripta Materialia 39, no. 9 (1998): 1229–36. http://dx.doi.org/10.1016/s1359-6462(98)00308-x.

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10

Oleksandr, Moloshnyi, and Szulc Przemyslaw. "The investigation of the cavitation processes in the radial labyrinth pump." Open Engineering 8, no. 1 (2018): 322–28. http://dx.doi.org/10.1515/eng-2018-0034.

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Abstract The paper concerns the analysis of the cavitation processes in the flow passages of the radial labyrinth pump. The object of the analysis contains the active (moving) and the passive (stationary) discs with straight channels trajectory and semi-circular cross-section. The conversion of the mechanical energy into hydraulic based on the exchange of the momentum between the liquid remaining in the moving and the stationary areas of the discs as well as on the centrifugal increase of the moment of momentum. The analysis of the cavitation processes was realized by the experimental research

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11

Semenov, Yury, and Yoshinobu Tsujimoto. "A Cavity Wake Model Based on the Viscous/Inviscid Interaction Approach and Its Application to Nonsymmetric Cavity Flows in Inducers." Journal of Fluids Engineering 125, no. 5 (2003): 758–66. http://dx.doi.org/10.1115/1.1598990.

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A cavity wake model based on the flow interaction between the viscous wake behind the cavity and external inviscid cavity flow is proposed. The conditions of interaction between viscous and inviscid flows make it possible to obtain a unique solution of the problem. The viscous wake model is formulated within the theory of boundary layers. The problem for the external inviscid flow is considered in both nonlinear and linear formulation. The developed cavity wake model provides reasonable agreement with experimental data for cavitation performance and cavitation compliance over a wide range of c

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12

Litasov, Konstantin D., Hiroyuki Kagi, Tatyana B. Bekker, Yoshiki Makino, Takafumi Hirata, and Vadim V. Brazhkin. "Why Tolbachik Diamonds Cannot be Natural." American Mineralogist 106, no. 1 (2021): 44–53. http://dx.doi.org/10.2138/am-2020-7562.

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Abstract Taking into account recent publications, we provide additional comprehensive evidence that type Ib cuboctahedral diamonds and some other microcrystalline diamonds from Kamchatka volcanic rocks and alluvial placers cannot be natural and undoubtedly represent synthetic materials, which appear in the natural rocks by anthropogenic contamination. The major arguments provided in favor of the natural origin of those diamonds can be easily disproved. They include the coexistence of diamond and deltalumite from Koryaksky volcano; coexistence with super-reduced corundum and moissanite, Mn-Ni s

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13

Oh, Kyunngwon, and Kyounghaing Lee. "A study on Applicability in Super Cavitation with SLBM of North Korea." International Journal of Aerospace System Engineering 3, no. 2 (2016): 9–13. http://dx.doi.org/10.20910/ijase.2016.3.2.9.

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14

Fahim, J., S. M. M. Hadavi, H. Ghayour, and S. A. Hassanzadeh Tabrizi. "Cavitation erosion behavior of super-hydrophobic coatings on Al5083 marine aluminum alloy." Wear 424-425 (April 2019): 122–32. http://dx.doi.org/10.1016/j.wear.2019.02.017.

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15

., D. Vignesh. "DESIGN OF SUPER CAVITATION SUBMARINE NOSE THAT SUSTAINS UNDER HIGH HYDRAULIC PRESSURE." International Journal of Research in Engineering and Technology 06, no. 04 (2017): 36–42. http://dx.doi.org/10.15623/ijret.2017.0604009.

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16

Wang, Zhenhua, and Bing Zhang. "In-situ study on cavitation erosion behavior of super ferritic stainless steel." Wear 482-483 (October 2021): 203986. http://dx.doi.org/10.1016/j.wear.2021.203986.

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17

Tabrizi, Amir Bashirzadeh, and Binxin Wu. "The role of compressibility in computing noise generated at a cavitating orifice." International Journal of Aeroacoustics 18, no. 1 (2018): 73–91. http://dx.doi.org/10.1177/1475472x18812801.

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The computational fluid dynamics calculation can be accomplished by solving either compressible or incompressible Navier–Stokes equations to determine the flow-field variables of the noise source. The proper assumption depends on both the physical situation and the Mach number. Although in cavitating devices usually we are dealing with low Mach number flow, cavitation is an acoustic phenomenon that can be affected by compressibility. Cavitation behaves acoustically as a monopole and it is mentioned by some researchers that incompressible solution is sufficient to study the dipole sources. Howe

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18

Šarc, Andrej, Janez Kosel, David Stopar, Martina Oder, and Matevž Dular. "Removal of bacteria Legionella pneumophila, Escherichia coli, and Bacillus subtilis by (super)cavitation." Ultrasonics Sonochemistry 42 (April 2018): 228–36. http://dx.doi.org/10.1016/j.ultsonch.2017.11.004.

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19

Kosel, Janez, Matej Šuštaršič, Martin Petkovšek, Mojca Zupanc, Mija Sežun, and Matevž Dular. "Application of (super)cavitation for the recycling of process waters in paper producing industry." Ultrasonics Sonochemistry 64 (June 2020): 105002. http://dx.doi.org/10.1016/j.ultsonch.2020.105002.

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20

KONDO, Sota, Moena KANAMARU, Satoshi KAWASAKI, and Yuka IGA. "Influence of Rotating Speed of Inducer on the Occurrence of Super-synchronous Rotating Cavitation." Proceedings of the Fluids engineering conference 2019 (2019): OS6–05. http://dx.doi.org/10.1299/jsmefed.2019.os6-05.

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21

Watanabe, Satoshi, Yoshinobu Tsujimoto, and Akinori Furukawa. "Theoretical Analysis of Transitional and Partial Cavity Instabilities." Journal of Fluids Engineering 123, no. 3 (2001): 692–97. http://dx.doi.org/10.1115/1.1378295.

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This paper describes a new time marching calculation of blade surface cavitation based on a linearized free streamline theory using a singularity method. In this calculation, closed cavity models for partial and super cavities are combined to simulate the transitional cavity oscillation between partial and super cavities. The results for an isolated hydrofoil located in a 2-D channel are presented. Although the re-entrant jet is not taken into account, the transitional cavity oscillation with large amplitude, which is known to occur when the cavity length exceeds 75 percent of the chord length

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22

Wang, Xing, Fei Hu Zhang, Yong Zhang, and Ming Zhou. "An Experimental Study of the Nanoparticle Colloid Hydrodynamic Cavitation Jet Polishing Performance under Different Nozzle Designs." Advanced Materials Research 325 (August 2011): 633–37. http://dx.doi.org/10.4028/www.scientific.net/amr.325.633.

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Nanoparticle colloid hydrodynamic cavitation jet polishing (HCJP) is a super-smooth machining technology. This technology utilizes the interface reaction to remove material from the workpiece and uses cavitation effect to improve the processing efficiency. In this paper, the prototype equipment of HCJP is researched. Based on the prototype equipment, the processing experiments of pulsed jet nozzle, swirling jet nozzle and common cone-shaped nozzle have been done and the results of the experiments are compared with each other. The experiment results indicate that the roughness of the surfaces p

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23

Nouroozi, M., M. Pasandidehfard, and M. H. Djavareshkian. "Simulation of Partial and Supercavitating Flows around Axisymmetric and Quasi-3D Bodies by Boundary Element Method Using Simple and Reentrant Jet Models at the Closure Zone of Cavity." Mathematical Problems in Engineering 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/1593849.

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A fixed-length Boundary Element Method (BEM) is used to investigate the super- and partial cavitating flows around various axisymmetric bodies using simple and reentrant jet models at the closure zone of cavity. Also, a simple algorithm is proposed to model the quasi-3D cavitating flows over elliptical-head bodies using the axisymmetric method. Cavity and reentrant jet lengths are the inputs of the problem and the cavity shape and cavitation number are some of the outputs of this simulation. A numerical modeling based on Navier-Stokes equations using commercial CFD code (Fluent) is performed t

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24

Yáñez, Marco A., Javier I. Urzua, Sergio E. Espinoza, and Victor L. Peña. "Limited Phenotypic Variation in Vulnerability to Cavitation and Stomatal Sensitivity to Vapor Pressure Deficit among Clones of Aristotelia chilensis from Different Climatic Origins." Plants 10, no. 9 (2021): 1777. http://dx.doi.org/10.3390/plants10091777.

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Aristotelia chilensis (Molina) Stuntz is a promising species in the food industry as it provides ‘super fruits’ with remarkable antioxidant activity. However, under the predicted climate change scenario, the ongoing domestication of the species must consider selecting the most productive genotypes and be based on traits conferring drought tolerance. We assessed the vulnerability to cavitation and stomatal sensitivity to vapor pressure deficit (VPD) in A. chilensis clones originated from provenances with contrasting climates. A nursery experiment was carried out for one growing season on 2-year

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25

Ristic, Slavica, Mirjana Puharic, Marina Kutin, and Dusan Matic. "Determination of air and hydrofoil pressure coefficient by laser doppler anemometry." Theoretical and Applied Mechanics 37, no. 1 (2010): 17–35. http://dx.doi.org/10.2298/tam1001017r.

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Some results of experiments performed in water cavitation tunnel are presented. Pressure coefficient (Cp) was experimentally determined by Laser Doppler Anemometry (LDA) measurements. Two models were tested: model of airplane G4 (Super Galeb) and hydrofoil of high speed axial pump. These models are not prepared for conventional pressure measurements, so that LDA is applied for Cp determination. Numerical results were obtained using a code for average Navier-Stokes equations solutions. Comparisons between computational and experimental results prove the effectiveness of the LDA. The advantages

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26

CALLENAERE, MATHIEU, JEAN-PIERRE FRANC, JEAN-MARIE MICHEL, and MICHEL RIONDET. "The cavitation instability induced by the development of a re-entrant jet." Journal of Fluid Mechanics 444 (September 25, 2001): 223–56. http://dx.doi.org/10.1017/s0022112001005420.

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The instability of a partial cavity induced by the development of a re-entrant jet is investigated on the basis of experiments conducted on a diverging step. Detailed visualizations of the cavity behaviour allowed us to identify the domain of the re-entrant jet instability which leads to classical cloud cavitation. The surrounding regimes are also investigated, in particular the special case of thin cavities which do not oscillate in length but surprisingly exhibit a re-entrant jet of periodical behaviour. The velocity of the re-entrant jet is measured from visualizations, in the case of both

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27

Kwok, C. T., H. C. Man, and L. K. Leung. "Effect of temperature, pH and sulphide on the cavitation erosion behaviour of super duplex stainless steel." Wear 211, no. 1 (1997): 84–93. http://dx.doi.org/10.1016/s0043-1648(97)00072-0.

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28

Kondo, Sota, Moena Kanamaru, Satoshi Kawasaki, and Yuka Iga. "Influence of Rotational Speed of an Inducer on the Propagation Velocity of Super-synchronous Rotating Cavitation." Journal of Physics: Conference Series 1909, no. 1 (2021): 012050. http://dx.doi.org/10.1088/1742-6596/1909/1/012050.

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29

Lee, C. S., Y. G. Kim, and J. T. Lee. "A Potential-Based Panel Method for the Analysis of a Two-Dimensional Super-or Partially-Cavitating Hydrofoil." Journal of Ship Research 36, no. 02 (1992): 168–81. http://dx.doi.org/10.5957/jsr.1992.36.2.168.

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A potential-based panel method is presented for the analysis of a super-or partially-cavitating two-dimensional hydrofoil. The method employs normal dipoles and sources distributed on the foil and cavity surfaces. It is shown that the source plays an important role in positioning the cavity surface through an iterative process. The cavity closure condition is found very effective in generating the cavity shape. Upon convergence, the method predicts the cavitation number together with the lift, drag, and surface pressure distribution for a given cavity length. Systematic convergence tests of th

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30

Ghadimi, Parviz, and Nasrin Javanmardi. "Analysis of Ventilation Regimes of the Oblique Wedge-Shaped Surface Piercing Hydrofoil During Initial Water Entry Process." Polish Maritime Research 25, no. 1 (2018): 33–43. http://dx.doi.org/10.2478/pomr-2018-0003.

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Abstract The suction side of a surface piercing hydrofoil, as a section of a Surface Piercing Propeller (SPP), is usually exposed to three phases of flow consisting air, water, and vapour. Hence, ventilation and cavitation pattern of such section during the initial phase of water entry plays an essential role for the propeller’s operational curves. Accordingly, in the current paper a numerical simulation of a simple surface piercing hydrofoil in the form of an oblique wedge is conducted in three-phase environment by using the coupled URANS and VOF equations. The obtained results are validated

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31

Shim, Sung-Ik, Yong-Soo Park, Soon-Tae Kim, and Chi-Bok Song. "Effects of Rare Earth Metal addition on the cavitation erosion-corrosion resistance of super duplex stainless steels." Metals and Materials International 8, no. 3 (2002): 301–7. http://dx.doi.org/10.1007/bf03186100.

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32

SHIMONI, Daichi, Daisuke NAKAGAWA, Masataka IJIRI, Kumiko TANAKA, and Toshihiko YOSHIMURA. "Basic research of water jet cavitation toward the development of super high temperature and pressure bubble generation mechanism." Proceedings of Mechanical Engineering Congress, Japan 2018 (2018): S0510402. http://dx.doi.org/10.1299/jsmemecj.2018.s0510402.

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33

Zhang, Wei, Bingbing Han, Kunpeng Zhang, and Qian Ding. "Dynamic Analysis of a Rotor System Supported on Squeeze Film Damper with Air Entrainment." International Journal of Bifurcation and Chaos 27, no. 14 (2017): 1750212. http://dx.doi.org/10.1142/s0218127417502121.

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Squeeze film dampers (SFDs) are widely used in compressors and turbines to suppress the vibration while traversing critical speeds. In practical applications, air ingestion from the outside environment and cavitation may lead to a foamy lubricant that weakens oil film damping and dynamic performance of rotor system. In this paper, a rigid rotor model is established considering both lateral and pitching vibration under different imbalance excitations to evaluate the effect of air entrainment on rotor system. Tests with three different imbalances are carried out on a rotor-SFD apparatus. Volume

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34

Blim, A., L. Jarecki, and S. Blonski. "Modeling of pneumatic melt drawing of polypropylene super-thin fibers in the Laval nozzle." Bulletin of the Polish Academy of Sciences: Technical Sciences 62, no. 1 (2014): 43–54. http://dx.doi.org/10.2478/bpasts-2014-0005.

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Abstract Melt spinning of the fibers by supersonic air jet in the Laval nozzle is a novel, efficient and energy saving method of formation of super-thin fibers. In the process, polymer melt is extruded from a row of orifices and fast drawn by the pneumatic forces. In the modelling, air velocity, temperature and pressure distributions are computed from the k-! aerodynamic model. Computations of the polymer air-drawing dynamics are based on the mathematical model of melt spinning in a single-, thin-filament approximation and Phan-Thien/Tanner non-linear viscoelasticity of the polymer melt. Axial

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35

Vukmanovic, Z., M. B. Holness, M. J. Stock, and R. J. Roberts. "The Creation and Evolution of Crystal Mush in the Upper Zone of the Rustenburg Layered Suite, Bushveld Complex, South Africa." Journal of Petrology 60, no. 8 (2019): 1523–42. http://dx.doi.org/10.1093/petrology/egz038.

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Abstract The Upper Zone of the Rustenburg Layered Suite of the Bushveld Complex contains the world’s largest Fe–Ti–V ± P deposit and formed from the last major injection of magma into the chamber. Quantitative textural analysis of Upper Zone rocks was undertaken to constrain the processes operating during mush formation and solidification, focussing on horizons with the greatest density contrast to isolate the effects of gravitational loading. We examined three magnetitite layers, together with their underlying and overlying anorthosites. The similarity of microstructures in anorthosites above

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36

Trägärdh, P., P. Lindell, and N. Sasaki. "Double Acting Tanker: Experiences from Model Tests and Sea Trials." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 219, no. 3 (2005): 109–19. http://dx.doi.org/10.1243/147509005x10413.

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The acronym DAT stands for double acting tanker, a concept where the ship is designed to run astern in heavy ice conditions while remaining hydrodynamically efficient for ahead propulsion in open water conditions. Two large aframax DATs - 106.000 dwt (deadweight tons) each - have been delivered by Sumitomo Heavy Industries to Fortum Oil and Gas OY. They are the first crude carriers built according to the DAT principle and also the first using pod propulsion from the beginning (Fig. 1). They will also be the world's largest crude carriers with ice class 1A super and are primarily intended for y

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37

Seehanam, Wirapan, Kulachate Pianthong, Wuttichai Sittiwong, and Brian Milton. "Injection pressure and velocity of impact-driven liquid jets." Engineering Computations 31, no. 7 (2014): 1130–50. http://dx.doi.org/10.1108/ec-09-2012-0218.

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Purpose – The purpose of this paper is to describe a procedure to simulate impact-driven liquid jets by computational fluid dynamics (CFD). The proposed CFD model is used to investigate nozzle flow behavior under ultra-high injection pressure and jet velocities generated by the impact driven method (IDM). Design/methodology/approach – A CFD technique was employed to simulate the jet generation process. The injection process was simulated by using a two-phase flow mixture model, while the projectile motion was modeled the moving mesh technique. CFD results were compared with experimental result

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38

Ferdowsian, Espanta. "Formation of Cavitation and Supercavitation in a Rectangular Shape Nozzle." International Journal of Science and Engineering Applications 10, no. 9 (2021). http://dx.doi.org/10.7753/ijsea1009.1002.

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Flow inside a rectangular shape nozzle is simulated in this study. Finite volume scheme is utilized as the main solver for the current study. Second order scheme is utilized to discretize pressure. Second order upwind scheme is utilized for solving momentum equation. Then the momentum equation is coupled with the continuity equation to obtain the pressure and velocity at each cell. Cavitation inception and super cavitation is also found and discussed in this study and the results were also verified with previous Winklhofer et al. experiments.

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39

Ertas, Bugra, Adolfo Delgado, and Jeffrey Moore. "Dynamic Characterization of an Integral Squeeze Film Bearing Support Damper for a Supercritical Co2 Expander." Journal of Engineering for Gas Turbines and Power 140, no. 5 (2017). http://dx.doi.org/10.1115/1.4038121.

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The present work advances experimental results and analytical predictions on the dynamic performance of an integral squeeze film damper (ISFD) for application in a high-speed super-critical CO2 (sCO2) expander. The test campaign focused on conducting controlled orbital motion mechanical impedance testing aimed at extracting stiffness and damping coefficients for varying end seal clearances, excitation frequencies, and vibration amplitudes. In addition to the measurement of stiffness and damping, the testing revealed the onset of cavitation for the ISFD. Results show damping behavior that is co

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40

Xue, Peihong, Hao Liu, Yanqiang Mo, Yuhong Qi, and Meihua Jin. "Facile Fabricating Strategy for Bioinspired Flexible Film with Cavitation: Liquid Super‐Repellent Material with Stimulate‐Response on Liquid Adhesion." Macromolecular Materials and Engineering, December 29, 2020, 2000605. http://dx.doi.org/10.1002/mame.202000605.

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41

Ertas, Bugra. "Compliant Hybrid Gas Bearing Using Integral Hermetically Sealed Squeeze Film Dampers." Journal of Engineering for Gas Turbines and Power 141, no. 10 (2019). http://dx.doi.org/10.1115/1.4044644.

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AbstractThis paper focuses on an integral gas-film lubricated bearing concept developed to enable the oil-free operation of super-critical carbon dioxide (sCO2) turbomachinery. The externally pressurized tilting pad bearing concept possesses a flexible bearing support with an integral hermetically sealed squeeze film damper. Unlike the past concepts using modular hermetic squeeze film dampers presented, the bearing design in this work utilizes advanced manufacturing methods to yield an integral single piece design in efforts to reduce space envelope, cost, and improve overall design reliabilit

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