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Academic literature on the topic 'DEFLECTOR PLATE'

Author: Grafiati
Published: 11 September 2023

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Journal articles on the topic "DEFLECTOR PLATE"

1

Misyulya, D. I., A. A. Borovik, and S. K. Protasov. "Conic plate deflector." Russian Journal of Applied Chemistry 82, no. 4 (2009): 696–98. http://dx.doi.org/10.1134/s1070427209040302.

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2

Faizal Hakim Hidzir, Mohd, Khairul Imran Sainan, and Hazran Husain. "Title of the Integrity Analysis of O&G Standpipe Separator: Numerical Study Article." International Journal of Engineering & Technology 7, no. 4.27 (2018): 73. http://dx.doi.org/10.14419/ijet.v7i4.27.22483.

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A standpipe is a component that functions to remove the condensate of gas from the oil that flows inside the O&G piping system underneath. Efficient gas removal promotes better crude oil quality and increases productivity. The deflector plates integrity in a stand pipe, where thin plates are mounted on the pipe walls periodically in the direction of fluid flow, has been numerically investigated. The aim of this investigation is to determine how the working fluid density and deflectors thickness influenced the plates integrity. Two working fluids were tested. Natural gas and crude oil which has a higher density. The thickness of the plates was 3 mm and 6 mm. A series of simulation analyses were done analytically through CFD and FEA simulation method using ANSYS software. Based on the results, crude oil produces higher stress onto the plates. This causes large plate deflection. It was observed, the plates near to the standpipe inlet were subjected to the highest stress. Stress on the deflector plates drops as the fluid travel along the pipe height. The deflector plates of 3 mm were failed under these conditions and were not recommended for usage.
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3

Yao, Gang, Linjun Wu, Yang Yang, Maoyi Liu, Yuxiao Chen, and Hongbo Du. "Study on the Suppression Effect on Vortex-Induced Vibration of Double-Deck Truss Girder by the Spatial Position of the Deflector Plate." Applied Sciences 13, no. 17 (2023): 9764. http://dx.doi.org/10.3390/app13179764.

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This paper carried out wind tunnel tests and numerical analysis to study the effect of the spatial position of deflector plates on the vortex-induced vibration (VIV) of a double-deck truss girder. The wind tunnel tests found that setting the web deflector plate and the lower chord deflector plate significantly suppressed the VIV. In order to study the suppression mechanism of the deflector plate on VIV, numerical simulations were conducted using the computational fluid dynamics (CFD) method. We analyzed the suppression mechanism of the deflector plate on VIV by combining the vertical amplitude obtained by numerical simulation with the change in the vorticity magnitude and direction. The results showed that the flow velocity around the lower surface of the airflow was reduced, resulting in significantly lower vorticity at the exact position of the lower chord deflector plate and web deflector plate section compared to the original section. The web deflector plate and the lower chord deflector plate broke the vortex shedding mode in the wake flow region, and the vortex shedding frequency was far away from the self-oscillation frequency of the double-deck truss girder, thus suppressing the VIV.
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4

Son, Namjeong, Yoojin Kim, Mimi Min, Seungho Jung, and Chankyu Kang. "Numerical Investigation of Overtopping Prevention for Optimal Safety Dike Design." International Journal of Environmental Research and Public Health 19, no. 24 (2022): 16429. http://dx.doi.org/10.3390/ijerph192416429.

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Leakage accidents at chemical facilities have a negative impact on both the environment and human life, and the government has established and implemented regulations on dikes in order to minimize such accidents. However, the overtopping phenomenon in which chemicals overflow the dike due to catastrophic leakage requires additional safeguards. In this study, the mitigation effect was confirmed by simulating tanks and dikes using various deflector plates to minimize the effect of spilled chemicals. ANSYS Fluent 19.1, a computational fluid dynamics program, was used, and the overtopping effect was compared with a dike design that satisfies the safety regulations using a volume of fluid (VOF) model that analyzes multiphase flow through a surface tracking technique. Nitric acid and sulfuric acid were used in the study; they were selected because they are frequently involved in leakage accidents. In the event of a leak in a liquid tank, a dike with a deflector plate was very effective in reducing overtopping, and a deflector at a 45° angle was more effective than a 30° deflector. However, it is necessary to install additional safeguards at the joint between the dike and the deflection plate to withstand the force of the liquid.
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5

Kailash, Golecha, T. I. Eldho, and S. V. Prabhu. "Performance Study of Modified Savonius Water Turbine with Two Deflector Plates." International Journal of Rotating Machinery 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/679247.

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Savonius rotor is a vertical axis rotor with simple in design and easy to fabricate at lower cost. The rotation of the rotor is due to the drag difference between the advancing blade and returning blade. Net driving force can be increased by reducing the reverse force on the returning blade or increasing the positive force on the advancing blade. Former can be realized by providing a flow obstacle to the returning blade and latter can be realized by concentrating the flow towards the advancing blade. The objective of the present work is to identify the optimal position of the deflector plate (on advancing blade side) placed upstream to the flow which would result in increase in power generated by the rotor. Tests are conducted to identify the optimum position of the deflector plate on the advancing blade side in the presence of a deflector plate on the returning blade side at its optimum position. Results suggest that two deflector plates placed at their optimal positions upstream to the flow increase the coefficient of power to 0.35. This is significantly higher than the coefficient of power of 0.14 observed for the rotor without deflector plates.
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6

Iwasińska-Kowalska, Olga. "A SYSTEM FOR PRECISE LASER BEAM ANGULAR STEERING." Metrology and Measurement Systems 21, no. 1 (2014): 27–36. http://dx.doi.org/10.2478/mms-2014-0003.

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Abstract A system for precise angular laser beam deflection by using a plane mirror is presented. The mirror was fixed to two supports attached to its edges. This article details the theoretical basis of how this deflector works. The spring deflection of a flat circular metal plate under a uniform axial buckling was used and the mechanical stress was generated by a piezoelectric layer. The characteristics of the deformation of the plate versus the voltage control of the piezoelectrics were examined and the value of the change resolution possible to obtain was estimated. An experimental system is presented and an experiment performed to examine this system. As a result, a resolution of displacement of 10-8 rad and a range of 10-5 rad were obtained.
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7

Gao, Guangjun, Yan Zhang, Fei Xie, et al. "Numerical study on the anti-snow performance of deflectors in the bogie region of a high-speed train using the discrete phase model." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 233, no. 2 (2018): 141–59. http://dx.doi.org/10.1177/0954409718785290.

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In this paper, the three-dimensional unsteady Reynolds-averaged Navier-Stokes equations with an RNG double-equation turbulence model and a discrete phase model were used for the investigation of snow accumulation on the bogie of a high-speed train. Two kinds of deflector plates, one installed at the front end and the other at the rear end of the bogie, were proposed to reduce snow accumulation. The accuracy of the CFD methodology was validated against wind tunnel tests. The results showed that high-speed air will impact the plates where snow particles get accumulated. The snow covering on the bogie rarely drifts back into the bogie region with air. The amount of accumulating snow in the optimum models is reduced by 50.58% on average as compared to those in the original models. At the rear end of the bogie, the inclined deflector plate reduced snow accumulation by up to 10.91% compared to the vertical deflector plate.
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8

Escartí-Guillem, Mara S., Sergio Hoyas, and Luis M. Garcia-Raffi. "Deflector shape impact on aero-acoustic noise generation and propagation." Journal of the Acoustical Society of America 152, no. 4 (2022): A222. http://dx.doi.org/10.1121/10.0016076.

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The vibroacoustic loading generated during the launch of space vehicles can cause the failure of electronic and mechanical components. Therefore, the prediction and mitigation of these vibroacoustic levels are crucial to improve the reliability of launchers and payload comfort. Because a properly designed flame deflector has the power to significantly reduce the acoustic pressure level, the aeroacoustics characteristics of diverse types of flame deflectors must be understood. Three different deflector geometries have been analysed: a wedge-type deflector, which is currently used on the VEGA rocket launch pad, a 30-degree inclined deflector, since new studies highlight its noise reduction capacity, and a flat deflector, since the impact on a flat plate is the simplest case of reflection. The sound generation and propagation in the launch platform full domain for each case were studied using dedicated computational fluid dynamics in BSC MareNostrum. To assess noise generation, the main shock waves were identified, and the evolution of the generated sound pressure was assessed. Moreover, the sound pressure levels at the fairing surface have been studied. Further research is focused right now on the use of an efficient solver running on graphics processing units that is capable of computing large-scale turbulence.
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9

Yu, Shao Zhen, Yi Jiang, Yan Li Ma, Yan Yan Ma, and Bo Wei Liu. "Simulation and Optimize Design for Deflector Plate of the Vehicle Mounted Vertically Thermal Launched Missile." Advanced Materials Research 459 (January 2012): 579–83. http://dx.doi.org/10.4028/www.scientific.net/amr.459.579.

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In this dissertation, academic analysis of the influence to deflector plate in gas jet field of a Vehicle-mounted Vertically Thermal Launched missile as well as simulation study. The finite volume method, a fully structured grid, three-dimensional N-S equation is used for the numerical simulation of the process during the missile launching. The two main factors: temperature and forces on the launcher is the standard we test a launching system. The temperature on the position we test will rise with the decreasing length of the deflector. Especially, when the length is near to the potential core, the temperature changed greatly. Also, the angles of the deflector under the same length have less impacted on the temperature field. However, the force on the deflector would be change greater than the temperature with the change of angles
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10

Verma, R. S., M. A. Jo, and A. S. Deora. "Forced Convection Across Horizontal Hot Cylinder Using Slotted Deflector Plate." Journal of The Institution of Engineers (India): Series C 94, no. 3 (2013): 275–79. http://dx.doi.org/10.1007/s40032-013-0075-z.

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