Academic literature on the topic 'A vortex diode'

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Journal articles on the topic "A vortex diode"

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Almeida, Sanjana V., Divya Dixit, Dinesh Bhutada, and Vinay M. Bhandari. "Degradation of Prazosin by using Newer Dual Activity Hydrodynamic Cavitation Reactors." Journal of ISAS 3, no. 3 (2025): 1–25. https://doi.org/10.59143/isas.jisas.3.3.sjpl9246.

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A study was conducted to investigate the degradation of Prazosin, an Alpha-1 Adrenergic Blocker, which is commonly used in the treatment of Hypertension. The study aimed to achieve improved efficiency using Hydrodynamic Cavitation (HC) and Process Intensification. A new cavitation technique that utilises the Dual Activity Reactor, which is a vortex flow-based cavitation device, was introduced in the study. Two different types of vortex diodes were used in a comparative investigation: a Non-Catalytic Aluminium diode and a Dual Activity Copper diode exhibiting catalytic properties. The impact of
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Tadyszak, Krzysztof, Alessandro Jäger, Jiří Pánek, and Martin Hrubý. "Design and Optimization of Microfluidic Vortex Diode." Mathematical and Computational Applications 29, no. 6 (2024): 97. http://dx.doi.org/10.3390/mca29060097.

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The performed research presents modeling results for designing microfluidic vortex diodes. These devices rectify fluid flow and can be used in many applications on micro and macro scales. The modeling, utilizing computational fluid dynamics (CFD) with the turbulence model RANS k-ε in COMSOL Multiphysics, has led to optimizing diodicity—the reversed-to-forward flow pressure drop ratio. The goal was to find the best flow-rectifying geometry within the 2D vortex-type design by changing the wall geometry, diode shape, and inflow velocities, identifying significant parameters and dependencies. Impr
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Zou, Lei, Kai Li, and Jun Huang. "Design and Testing of a Valveless Piezoelectric Pump with Conical Vortex Diodes." MATEC Web of Conferences 306 (2020): 04003. http://dx.doi.org/10.1051/matecconf/202030604003.

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The valveless piezoelectric pump delivers fluid based on the difference of flow resistance of internal tube. In this paper, a vortex diode with conical tangential tube is proposed, which possesses the great characteristic of reverse cut-off, and the analysis of the forward and reverse flow resistance of the conical vortex diode is verified by finite element analysis. Then, a valveless piezoelectric pump with conical vortex diodes as the internal channel is designed, and the prototype is manufactured. The results of the output performance experiment show that the maximum output flow rate of the
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Shaidakov, V. V., E. V. Shestakova, and A. A. Barabanov. "Ensuring the safety of chemical dosing." IOP Conference Series: Earth and Environmental Science 981, no. 3 (2022): 032050. http://dx.doi.org/10.1088/1755-1315/981/3/032050.

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Abstract The article deals with the issues of ensuring the safe dosing of small volumes of chemical reagents with positive displacement pumps. The results of simulation of hydrodynamic processes in valve assemblies are presented. Studies have shown the low efficiency of the reagent supply process using ball and poppet valves. The use of hydraulic diaphragm and vortex diodes is proposed. Based on amathematical modeling, the design features of hydrodiodes and the parameters of their effective operation are substantiated, which makes it possible to exclude fluid pulsation and increase the flow ra
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YOSHITOMI, Hideki, and Tsutomu WADA. "Forward-Flow Cavitation in a Vortex Diode." Transactions of the Society of Instrument and Control Engineers 24, no. 10 (1988): 1033–39. http://dx.doi.org/10.9746/sicetr1965.24.1033.

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Kaigorodov, S. Yu, A. A. Shaposhkov, and I. V. Tsvetkov. "Experimental Study of Characteristics of Vortex Diode." Chemical and Petroleum Engineering 57, no. 3-4 (2021): 227–30. http://dx.doi.org/10.1007/s10556-021-00922-z.

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Suri, Dhavala, Akashdeep Kamra, Thomas N. G. Meier, et al. "Non-reciprocity of vortex-limited critical current in conventional superconducting micro-bridges." Applied Physics Letters 121, no. 10 (2022): 102601. http://dx.doi.org/10.1063/5.0109753.

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Non-reciprocity in the critical current has been observed in a variety of superconducting systems and has been called the superconducting diode effect. The origin underlying the effect depends on the symmetry breaking mechanisms at play. We investigate superconducting micro-bridges of NbN and also NbN/magnetic insulator (MI) hybrids. We observe a large diode efficiency of [Formula: see text]30% when an out-of-plane magnetic field as small as 25 mT is applied. In both NbN and NbN/MI hybrid, we find that the diode effect vanishes when the magnetic field is parallel to the sample plane. Our obser
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Kaigorodov, S. Yu, and I. V. Tsvetkov. "Characteristics of a Vortex Diode of Increased Diodicity." Russian Engineering Research 41, no. 12 (2021): 1165–68. http://dx.doi.org/10.3103/s1068798x21120200.

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Skirdkov, P. N., A. F. Popkov, and K. A. Zvezdin. "Vortex spin-torque diode: The impact of DC bias." Applied Physics Letters 113, no. 24 (2018): 242403. http://dx.doi.org/10.1063/1.5064440.

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Thomas, G. M., A. Minassian, and M. J. Damzen. "Optical vortex generation from a diode-pumped alexandrite laser." Laser Physics Letters 15, no. 4 (2018): 045804. http://dx.doi.org/10.1088/1612-202x/aaa9a4.

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Dissertations / Theses on the topic "A vortex diode"

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Motamed-Amini, Amir. "The behaviour and characteristics of a vortex diode in steam flows." Thesis, University of Liverpool, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328173.

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The forward and reverse flow characteristics have been measured for Zobel type vortex diode with 19 mm throat diameter using superheated stea with inlet pressures up to 12 bar absolute, and exhausting into a subatmospheric condenser to achieve inlet to outlet pressure ratios up to 30 A discharge factor, Cf, which relates the measured mass flow rate to the theoretical mass flow rate of a critical flow through a comparable isentropic nozzle, has been used to describe the resistance of the diode. In the choked region of the forward and reverse flow, Cf has a constant value of 0.95 and 0.38 respec
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Оверко, М. В. "Обоснование рациональных параметров рабочих процессов и областей применения перспективных средств защиты водонапорных установок от гидравлических ударов". Thesis, Сумский государственный университет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46030.

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У дисертаційній роботі визначено, науково обґрунтовано і вирішено задачу захисту від гідравлічних ударів водонапірних установок за допомогою великогабаритних діодів або додаткових (резервних) трубопроводів. Створено і досліджено математичні моделі водонапірного трубопроводу зі змінним гідравлічним опором, робочого процесу великогабаритного вихрового діоду з конічним входом у вихрову камеру і відведенням, виконаним на її торцевій поверхні, перехідного процесу у водонапірній установці, яка враховує в наближеній формі динамічні властивості вихрового діоду. Моделі використані для вдосконалення ви
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Books on the topic "A vortex diode"

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Shin-Juh, Chen, and NASA Glenn Research Center, eds. Microgravity diode laser spectroscopy measurements in a reacting vortex ring. National Aeronautics and Space Administration, Glenn Research Center, 2001.

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Book chapters on the topic "A vortex diode"

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"Vortex Diode." In Encyclopedia of Microfluidics and Nanofluidics. Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4614-5491-5_200306.

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Conference papers on the topic "A vortex diode"

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Wang, Junrong, Qi Xiao, Hanbing Ke, Xu Hu, Shaodan Li, and Zhiguo Wei. "Numerical Simulation of Flow Instability in Vortex Diodes." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66512.

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A vortex diode is used as a highly reliable check-valve in nuclear applications, where it mainly benefits from the intrinsic properties of no moving parts and no leakage. Its basic principle is similar to the diode in an electric circuit. The typical structure of a vortex diode consists of a chamber with axial and tangential ports. When the fluid is injected through the axial port, a simple radial flow in the chamber leads to a relatively low flow resistance. On the other hand, in the reverse flow mode, a strongly swirling vortex can be set up in the chamber, resulting in a very high flow resi
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Lv, Qiuping, Minghui Chen, Xiaodong Sun, et al. "Design of Fluidic Diode for a High-Temperature DRACS Test Facility." In 2013 21st International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icone21-16902.

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The Direct Reactor Auxiliary Cooling System (DRACS) is a passive heat removal system proposed for the Advanced High-Temperature Reactor (AHTR) that combines the coated particle fuel and graphite moderator with a liquid fluoride salt as the coolant. The DRACS features three coupled natural circulation/convection loops relying completely on buoyancy as the driving force. A fluidic diode has been proposed in the DRACS primary loop to maintain the passive feature. Fluidic diodes are passive flow control devices with low flow resistance in one direction and high flow resistance in the opposite dire
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Wang, Junrong, Zhiguo Wei, Jinlan Gou, Qi Xiao, Shaodan Li, and Yong Li. "CFD Numerical Simulation of Water Hammer in a Vortex Diode." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-81790.

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In the pipeline system of nuclear industry, shock wave pressure in a pipe will be caused by the fast closing check valve after the pumping stops. This phenomenon is known as water hammer, which brings hidden danger to the security and reliability of the pipeline system. Specially, water hammer may cause serious damage on the pipeline system by the valve misoperation, by the valve malfunction, or by other unexpected events. A vortex diode is used as a highly reliable check-valve in nuclear applications, where it mainly benefits from the intrinsic properties of no moving parts and no leakage. In
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Okulov, A. Yu. "Vortex light emission from solid-state microchip diode-pumped lasers." In Frontiers in Optics. OSA, 2019. http://dx.doi.org/10.1364/fio.2019.jw4a.51.

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Chen, Shin-Juh, W. Dahm, Joel Silver, and Nancy Piltch. "Microgravity diode laser spectroscopy measurements in a reacting vortex ring." In 39th Aerospace Sciences Meeting and Exhibit. American Institute of Aeronautics and Astronautics, 2001. http://dx.doi.org/10.2514/6.2001-187.

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Shikder, Allarakha, and Naveen K. Nishchal. "Generation of vector vortex beam using partially coherent light." In Digital Holography and Three-Dimensional Imaging. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/dh.2023.hm4c.2.

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In this study, we present a simple and flexible non-interferometric method to generate vector vortex beam using light emitting diode. The approach is based on dual modulation technique that creates various polarization singularity beams with a spatial light modulator.
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Jiao, Lei, Congnan Chen, Junlian Yin, Jintao Liu, and Yulin Wu. "Experimental and Numerical Study on the Cavitation Stability of Vortex Diode." In 8th International Symposium on Cavitation. Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2826-7_207.

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Ma, Yuanyuan, Jung-Chen Tung, Katsuhiko Miyamoto, and Takashige Omatsu. "Direct generation of vortex beams from a diode-pumped Pr3+:YLF laser." In CLEO: Applications and Technology. OSA, 2019. http://dx.doi.org/10.1364/cleo_at.2019.jtu2a.62.

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Shikder, Allarakha, and Naveen K. Nishchal. "Generation of controllable optical vortex array by in-line phase modulation with a light emitting diode." In Frontiers in Optics. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/fio.2023.jm7a.106.

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Ma, Yuanyuan, Jung-Chen Tung, Yung-Fu Chen, et al. "Handedness Control of Visible Optical Vortex Output from a Diode-Pumped Pr3+:YLF Laser." In 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2019. http://dx.doi.org/10.1109/cleoe-eqec.2019.8873080.

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Reports on the topic "A vortex diode"

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Houck, E. D. Vortex diode jet performance and theory. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10157696.

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Yoder Jr, Graydon L., Yousri M. Elkassabgi, Gerardo I. De Leon, Caitlin N. Fetterly, Jorge A. Ramos, and Richard Burns Cunningham. Vortex Diode Analysis and Testing for Fluoride Salt-Cooled High-Temperature Reactors. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1036568.

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