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Journal articles on the topic 'Slotted-Wall'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Urashima, Saburo, Koichi Ishizuka, and Hideo Kondo. "ENERGY DISSIPATION AND WAVE FORCE AT SLOTTED WALL." Coastal Engineering Proceedings 1, no. 20 (1986): 172. http://dx.doi.org/10.9753/icce.v20.172.

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The hydrodynamic coefficients are computed based on the measured total force on the single slotted wall in the wave field, or on the measured head loss in the uniform flow channel. The reflection, transmission and force coefficients on the single slotted wall are computed based on the mean values of the hydrodynamic coefficients. The correlations between these calculated values and measured values are found to be good. A design procedure of the single slotted wall is given the paper.

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2

Muataz, W. Sabri, A. Murad Noor, and K.A. Rahim Mohammed. "Bi-directional Beams Waveguide Slotted Antenna at Millimeter Wave." TELKOMNIKA Telecommunication, Computing, Electronics and Control 16, no. 4 (2018): 1515–21. https://doi.org/10.12928/TELKOMNIKA.v16i4.9057.

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This paper focused on designing a bi-directional beams waveguide slotted antenna at millimetre wave spectrum. Waveguide slotted antenna is known for its highly directional pattern. By having bidirectional pattern, the capacity of system coverage can be expanded. The design is implemented by using antenna slot theory on a waveguide structure. The slotted are made on two wall surfaces and the performance is compared to the slotted on single wall. The two models designs are simulated using Computer Simulation Technology (CST) microwave software. The simulation results show that both models operat

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3

Mabey, D. G., and F. W. Steinle. "Computer studies of hybrid slotted working sections with minimum steady interference at subsonic speeds." Aeronautical Journal 89, no. 884 (1985): 135–48. http://dx.doi.org/10.1017/s0001924000014664.

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SummaryCurrently there is renewed interest in the evaluation and reduction of steady wind tunnel wall interference, especially for large models.Evaluation of previous predictions for perforated and slotted tunnels suggests that a hybrid slotted tunnel, ie a slotted tunnel with closed slats and perforated slots) should offer minimum corrections for upwash, flow curvature and solid blockage. This suggestion is confirmed by the present computer studies of a range of rectangular hybrid slotted tunnels.The computer studies are for tunnel working section height to breadth ratios of 0·835 and 0·600 o

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Kai, Hisahiro, Jiro Hirokawa, and Makoto Ando. "Circularly Polarized Post-wall Waveguide Slotted Arrays." IEICE Electronics Express 1, no. 1 (2004): 7–12. http://dx.doi.org/10.1587/elex.1.7.

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5

Heshmati, Amirhossein, Hussein A. Mohammed, Mohammad Parsazadeh, et al. "Effect of Vertical Baffle Installation on Forced Convective Heat Transfer in Channel Having a Backward Facing Step." Applied Mechanics and Materials 388 (August 2013): 169–75. http://dx.doi.org/10.4028/www.scientific.net/amm.388.169.

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In this study, forced convective heat transfer is considered in channel over a backward facing step having a baffle on the top wall. Four different geometries with different expansion ratios and different type of baffles are numerically investigated. The study clearly shows that the geometry with expansion ratio 2 and solid baffle has the highest Nusselt number compared to other geometries. Considering both Nusselt number and skin friction coefficient for all four geometries clearly illustrated an increase in average Nusselt number by increasing the expansion ratio. This study clearly shows th

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6

Macha, J. Michael, Robert J. Buffington, John F. Henfling, David Van Every, and John L. Harris. "Slotted-wall blockage corrections for disks and parachutes." Journal of Aircraft 28, no. 9 (1991): 592–97. http://dx.doi.org/10.2514/3.46069.

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7

Poguluri, Sunny Kumar, and Il-Hyoung Cho. "Mitigation of liquid sloshing in a rectangular tank due to slotted porous screen." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 234, no. 3 (2020): 686–98. http://dx.doi.org/10.1177/1475090219895834.

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Liquid sloshing inside a tank with a slotted porous screen at the center is studied based on numerical and experimental methods. Slotted screens with three different porosities (0.0964, 0.1968 and 0.3022) for two submergence depths of 1 and 2 cm have been considered. One of the main advantages of the slotted screens is that the resonance frequency of the sloshing tank can be altered and the sloshing-induced motion/load can be suppressed by energy dissipation across the porous screen. The complexities of slotted screens equipped in a sloshing tank are accompanied by wave breaking, jet formation

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8

Mabey, D. G. "Homogeneous wall boundary condition for oscillatory flow in slotted tunnels." Aeronautical Journal 101, no. 1003 (1997): 99–110. http://dx.doi.org/10.1017/s0001924000066574.

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Abstract The aerodynamic interference between oscillating models and the walls of slotted windtunnels is controlled by the homogeneous wall boundary condition, which has hitherto been uncertain. In this report a new homogeneous boundary condition for slotted tunnels is suggested which incorporates the important effects of plenum chamber depth and slot parameter.In particular, this new boundary condition controls the transverse resonance frequencies of the tunnel, which represent a severe form of wall interference. Hence a comparison of measured resonance frequencies with predictions based on s

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9

Koshkid’ko, V. G., and M. M. Migalin. "Design of a Slotted Waveguide Antenna by Means of VBScript Scripting Language Macros in CAD Ansys HFSS." Journal of the Russian Universities. Radioelectronics 23, no. 1 (2020): 6–17. http://dx.doi.org/10.32603/1993-8985-2020-23-1-6-17.

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Introduction. Modern antenna devices contain a large number of repeating elements. The process of development of CAD models of such devices requires repeatedly performed operations that is a routine task for an engineer. Therefore, the problem of repeating operations automation arises when constructing antenna models with periodic structures.Aim. To demonstrate the automation of slotted waveguide antennas design process in CAD Ansys HFSS.Materials and methods. In order to determine the dimensions of the slotted waveguide antenna the energy method was used. Automation procedure of the design of

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10

Yang, Zhijian, Lisuo Sun, Bo Nan, and Shunli Wei. "Thermal Performance of Slotted Light Steel-Framed Composite Wall." Energies 16, no. 5 (2023): 2482. http://dx.doi.org/10.3390/en16052482.

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In this study, calibrated hot box and finite element simulation methods were used to study the influence of a slotted web on the thermal performance of a lightweight steel stud composite wall. By comparing the results from the simulations and experiments, the accuracy of the finite element method was verified; this method was then used for parameter analyses. The results showed that the wall’s thermal transfer coefficient is inversely proportional to increases in the length of the slot and height of the stud web, leading to improvements in the thermal insulation effect; vice versa, the wall th

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11

Samokhvalov, N. M., and V. V. Vinogradov. "Gas Dedusting by Slotted Filter." Ecology and Industry of Russia 26, no. 6 (2022): 10–15. http://dx.doi.org/10.18412/1816-0395-2022-6-10-15.

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A new deduster is proposed, in which a slotted filter screen with perforated frame wire wound in several layers is used to collect dust, with specific sizes of slots between the coils and layers of wire. The filter is equipped with an efficient regeneration system and can be used to clean hot, aggressive gases, as well as abrasive dust. A stationary filtration method on various dusts with high (98–99% or more) or target cleaning efficiency and acceptable wall friction is developed and studied. The calculation method, which enables cleaning simulations and determination of optimal performance p

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12

Cho, Il-Hyoung. "Effect of Energy Loss by a Vertical Slotted Wall." Journal of Korean Society of Coastal and Ocean Engineers 27, no. 5 (2015): 295–303. http://dx.doi.org/10.9765/kscoe.2015.27.5.295.

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13

Shen, Shao-Dong, Yao Cui, Peng Pan, and Jun-Yu Ren. "Development of prefabricated composite energy-dissipating slotted shear wall." Engineering Structures 199 (November 2019): 109577. http://dx.doi.org/10.1016/j.engstruct.2019.109577.

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14

Sauviac, B., and C. R. Simovski. "Magnetic wall from slotted screens and a ground plane." Microwave and Optical Technology Letters 40, no. 3 (2003): 209–11. http://dx.doi.org/10.1002/mop.11330.

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15

Alekperov, Rafik, and Ivan Aksenov. "Decrease of cold-formed slotted studs heat conductivity by slots shape modification." E3S Web of Conferences 97 (2019): 06009. http://dx.doi.org/10.1051/e3sconf/20199706009.

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Cold-formed steel framing is gaining ground in Russia. Now it’s making attempts to adopt curtain wall panels with cold-formed slotted steel members in residential building. In view of cold Russian climate, a problem of mitigation of the cold bridge effect created by the steel have appeared. It’s proposed to improve steel members’ thermal performance by choice a new web holes shape. Stud models with different web holes configuration were investigated by means of fine element analysis in COMSOL Multiphysics software. Their thermal and load-carrying performance was compared with a standard slotte

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16

Alkhalidi, Mohamad, Noor Alanjari, and S. Neelamani. "Wave Interaction with Single and Twin Vertical and Sloped Slotted Walls." Journal of Marine Science and Engineering 8, no. 8 (2020): 589. http://dx.doi.org/10.3390/jmse8080589.

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The interaction between waves and slotted vertical walls was experimentally studied in this research to examine the performance of the structure in terms of wave transmission, reflection, and energy dissipation. Single and twin slotted barriers of different slopes and porosities were tested under random wave conditions. A parametric analysis was performed to understand the effect of wall porosity and slope, the number of walls, and the incoming relative wave height and period on the structure performance. The main focus of the study was on wave transmission, which is the main parameter require

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17

Tran, Duc Huan, and Carsten Drebenstedt. "EFFECT OF CAVITIES SHAPES ON THE ROUGHNESS FRICTION FACTOR IN PERFORATED AND SLOTTED HORIZONTAL WELLS USED TO DEWATER OPENCAST MINES." Mining science and technology, no. 2 (August 12, 2018): 9–13. http://dx.doi.org/10.17073/2500-0632-2018-2-9-12.

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The horizontal wells have been adapted to use for dewatering purpose in the mining industry. Due to unique characteristics, those horizontal filters are rec-ommended to utilize not only the mechanical strength but also the hydraulic per-formance. Pressure drop along the horizontal well is a major factor that affects the performance of a wellbore. The pressure drop incurs due to four separate effects: wall friction, perforation roughness, inflow acceleration and mixing ef-fects. This work presents the effects of the two first factors in perforated or slot-ted pipes, which correspond to the case

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18

Sekimoto, Masaki, Gen Hayashi, Takashi Yamaguchi, and Keigo Kubo. "Performance of Joint Structure of Bent L‐Shaped Steel Members for GFRP Wall Railings." ce/papers 6, no. 5 (2023): 1446–54. http://dx.doi.org/10.1002/cepa.2051.

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AbstractGlass fibre reinforced polymer (GFRP) has excellent material properties such as light weight and corrosion resistance, and has been applied to bridge appendages such as wall railings. In this case, bent L‐shaped steel members (bent members) are used at the joints with the floor slab. The GFRP wall railings were designed to consider the wind loads acting on them, and the bolt holes for the anchor bolts were slotted hole for ease of installation. In this study, the effects of loading conditions and bolt arrangement of anchor bolts slotted holes in the performance of the joint structure w

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19

Girhammar, Ulf Arne, and Bo Källsner. "Tests and Analyses of Slotted-In Steel-Plate Connections in Composite Timber Shear Wall Panels." Advances in Civil Engineering 2017 (2017): 1–20. http://dx.doi.org/10.1155/2017/7259014.

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The authors present an experimental and analytical study of slotted-in connections for joining walls in the Masonite flexible building (MFB) system. These connections are used for splicing wall elements and for tying down uplifting forces and resisting horizontal shear forces in stabilizing walls. The connection plates are inserted in a perimeter slot in the PlyBoard™ panel (a composite laminated wood panel) and fixed mechanically with screw fasteners. The load-bearing capacity of the slotted-in connection is determined experimentally and derived analytically for different failure modes. The t

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20

Ljungskog, Emil, Simone Sebben, and Alexander Broniewicz. "Flow Angularity Investigations in an Automotive Slotted Wall Wind Tunnel." Energies 12, no. 23 (2019): 4575. http://dx.doi.org/10.3390/en12234575.

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The Volvo Cars aerodynamic wind tunnel has had a vortical flow angularity pattern in the test section since its original commissioning in 1986. The vortical flow nature persisted after an upgrade in 2006, when the fan was replaced and a moving ground system was introduced. It has been hypothesized that the cause for this flow angularity pattern was leakages around the heat exchanger installed in the settling chamber. The present paper tests this hypothesis by measuring the flow angularity in the test section before and after sealing the leakages. The findings show that the leakage path around

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21

Liu, Jixin, Wei Li, Kailai Deng, and Peng Pan. "Parametric analysis of slotted RC wall for seismic resilient structure." Smart Materials and Structures 30, no. 1 (2020): 015025. http://dx.doi.org/10.1088/1361-665x/abca0a.

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22

Alsaydalani, Majed O., Mohammed A. N. Saif, and Medhat M. Helal. "Hydrodynamic characteristics of three rows of vertical slotted wall breakwaters." Journal of Marine Science and Application 16, no. 3 (2017): 261–75. http://dx.doi.org/10.1007/s11804-017-1427-5.

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23

Yeoh, You-Seok, and Kyeong-Sik Min. "Characteristics of 6 × 26 Slotted Waveguide Array Antenna for Wave Monitoring Radar System." Journal of Electromagnetic Engineering and Science 21, no. 5 (2021): 439–47. http://dx.doi.org/10.26866/jees.2021.5.r.53.

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This paper presents the characteristics of a 6 × 26 slotted waveguide array antenna for a wave monitoring radar system. The proposed antenna was designed as a double-layer structure that operated in the Ku-band and combined the radiating antenna and feeding antenna structures to secure a broad bandwidth. To realize the high-gain properties of the antenna and the beamwidth control, parameters such as the resonance slot length, width, offset, and angle of the feeding slot placed on the broad wall were precisely calculated using the iteration. The measured results for the voltage standing wave ra

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24

BAUTISTA KURI, Antonio, and Santiago Jesús PéREZ RUIZ. "Wall sound insulation measurement in laboratory according to iso 10140-2 standard and sound insulation measurement on the same wall with electrical and telephone sockets." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 10 (2024): 1052–60. http://dx.doi.org/10.3397/in_2024_2765.

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Study related to the measurement of acoustic insulation R to sand and cement block wall with flattening on both sides, which was built inside a Transmission Chamber in accordance with the ISO 10140-2 standard. Subsequently this wall is slotted, placing Conduits, accessories for illumination, electrical and telephone sockets on both sides, finally covering all these installations with products that make it appear that the wall is intact, then the measurement of its acoustic insulation R and Rw is carried out. The results indicate variations that can be very annoying for residents on both sides

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25

Langner, Marcelo, Thais A. Soares, António Figueiredo, Ricardo M. S. F. Almeida, and Romeu Vicente. "Parametric Analysis of Steel Studs to Reduce Thermal Bridges in Light Steel Framing Construction Systems." Buildings 15, no. 2 (2025): 194. https://doi.org/10.3390/buildings15020194.

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Thermal bridges significantly affect the thermal performance of light steel framing systems due to the high thermal conductivity of steel. The objective of this study is to identify modifications on the steel profiles to reduce heat flux and improve the thermal resistance of both single- and double-layer wall panels. Three approaches were analyzed: (i) slotted steel studs, (ii) integration of less-conductive materials into the web section, and (iii) modifications to web geometry. A numerical model was calibrated based on experimental data and used to perform dynamic simulations with different

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26

Guo, Qifeng, Jiliang Pan, Min Wang, Meifeng Cai, and Xun Xi. "Corrosive Environment Assessment and Corrosion-Induced Rockbolt Failure Analysis in a Costal Underground Mine." International Journal of Corrosion 2019 (March 4, 2019): 1–9. http://dx.doi.org/10.1155/2019/2105842.

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As an effective ground-reinforcing system, rockbolts have been widely used in underground excavations. Corrosion of rockbolts has been one of the most reasons for rockbolts system failure. In this paper, the chemical composition and pH values of the groundwater in Sanshandao Gold mine are first tested. Corrosion of the slotted rockbolts used in roadways of the mine is analysed. The corrosion rate of rockbolts is evaluated based on experimental results from similar corrosive conditions. A time-dependent analytical model on anchoring force degradation caused by corrosion of the rockbolt is devel

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27

Николаев, В. А., and И. В. Кряклина. "CALCULATION OF THE POSSIBILITY OF OPTIMAL NON-IMPACT HIT OF THE DRAGEE INTO THE HOLE OF THE SLOTTED PIPE." Vestnik APK Verhnevolzh`ia, no. 3(63) (September 29, 2023): 85–90. http://dx.doi.org/10.35694/yarcx.2023.63.3.011.

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Предложен комбинированный агрегат обработки почвы и посева, обеспечивающий оптимальное размещение семян в почве. Важным элементом устройства размещения семян является перфорированная труба. В результате расчётов и пространственного моделирования ранее были выявлены зависимости: количества драже между первым и вторым сбрасывателем от наружного диаметра перфорированной трубы, максимального количества отверстий от наружного диаметра перфорированной трубы, исходя из геометрии перфорированной трубы и возможного количества драже между первым и вторым сбрасывателем. На основании проведённых исследова

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28

Zheng, Guochao, Fuli Wang, Baiping Yan, and Runting Cheng. "Temperature suppression of metal panel in electromagnetic field." Circuit World 46, no. 4 (2020): 317–24. http://dx.doi.org/10.1108/cw-07-2019-0069.

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Purpose The purpose of this study is to suppress the temperature rise of high voltage wall bushing metal plate. Design/methodology/approach First, the authors built a model of a traditional metal plate and got the magnetic field intensity distribution by FEA tools. Optimized according to the magnetic field intensity distribution, the authors slot the traditional metal plate and embed permanent magnets in the slot. Finally, the authors got the temperature distribution diagrams of the above three cases at different current levels by FEA tools. Findings Slotted metal plate is beneficial to suppre

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29

Wang, Hejian, Bo Liu, Xiaochen Mao, Botao Zhang, and Zonghao Yang. "Combined Flow Control Strategy Investigation for Corner Separation and Mid-Span Boundary Layer Separation in a High-Turning Compressor Cascade." Entropy 24, no. 5 (2022): 570. http://dx.doi.org/10.3390/e24050570.

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To comprehensively control the corner separation and mid-span boundary layer (BL) separation, this study proposed and evaluated two new flow control configurations. One is a slotted configuration composed of blade-end and whole-span slots, and the other is a combined configuration with end-wall BL suction and whole-span slot. Additionally, the adaptability of the combined configuration to the lower blade solidity (c/t) condition was verified. The results indicate that both the slotted configuration and combined configuration can eliminate the mid-span BL separation, but a better reduction in t

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30

Han, Ou, and Angui Li. "Velocity distribution of wall-attached jets in slotted-inlet ventilated rooms." Building and Environment 194 (May 2021): 107708. http://dx.doi.org/10.1016/j.buildenv.2021.107708.

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31

Sedin, Yngve C.-J., and Hans Sorensen. "Computed and measured wall interference in a slotted transonic test section." AIAA Journal 24, no. 3 (1986): 444–50. http://dx.doi.org/10.2514/3.9287.

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32

Heidebrecht, Alexander. "Simulation and model support correction for slotted wall transonic wind tunnels." International Journal of Engineering Systems Modelling and Simulation 5, no. 1/2/3 (2013): 33. http://dx.doi.org/10.1504/ijesms.2013.052378.

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33

Li, Yan Yan, Pei Lei Li, and Xian Rong. "Experimental Research on Seismic Behavior of Dual Function Slotted Infill Wall." Applied Mechanics and Materials 94-96 (September 2011): 293–97. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.293.

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According to the dual impact of infill wall on the frame structures, the normal infill wall has been improved. In order to investigate the seismic behavior of infill frame structures with different vertical slit width under reversed cyclic loading, experimental research on three groups of infill frame structures has been performed. And the failure characteristic, bearing capacity, ductility and hysteretic property are analyzed. From the results of test, it can be seen that infill frame structures with slits have a good seismic performance and the vertical slit width is an important factor, whi

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34

Naqui, J., M. Durán-Sindreu, and F. Martín. "Differential and Single-Ended Microstrip Lines Loaded with Slotted Magnetic-LC Resonators." International Journal of Antennas and Propagation 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/640514.

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This paper is focused on magnetic-LC (MLC) resonators, namely, slotted resonators that can be considered the complementary counterparts of the so-called electric-LC (ELC) resonators. Both resonators exhibit two symmetry planes (i.e., they are bisymmetric), one of them being an electric wall and the other a magnetic wall at the fundamental resonance. Therefore, compared to other electrically small resonators such as folded stepped impedance resonators (SIRs), split ring resonators (SRRs), and their complementary counterparts, MLC and ELC resonators exhibit a very rich phenomenology. In this pap

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35

Wu, Shenghao, Jiming Chen, Qin Chen, and Haitao Pei. "Measurementimprovement of flow quality of slotted test section in transonic wind tunnel." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 39, no. 3 (2021): 660–67. http://dx.doi.org/10.1051/jnwpu/20213930660.

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Experimental studies were carried out in the 0.6 m×0.6 m continuous transonic wind tunnel of CARDC in order to investigate the flow characteristics of the slotted test section. Experimental results show that the root-mean-square deviation of axial Mach number in the model area is above 0.01 when the test section Mach number is above 1.0.Numerical simulation under the same conditions to investigate the flow characteristics of the slotted section, together with the experimental studies indicate tow phenomena may directly cause the Mach number fluctuation. Firstly, a straight section was installe

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GUANGYUAN, LIU, LIU DAWEI, and GUO QIUTING. "Experimental Investigations of the Flow through Slotted Wall in Transonic Wind Tunnel*." Journal of Physics: Conference Series 1877, no. 1 (2021): 012034. http://dx.doi.org/10.1088/1742-6596/1877/1/012034.

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37

Zhang, Yan, Zhi Ning Chen, Xianming Qing, and Wei Hong. "Wideband Millimeter-Wave Substrate Integrated Waveguide Slotted Narrow-Wall Fed Cavity Antennas." IEEE Transactions on Antennas and Propagation 59, no. 5 (2011): 1488–96. http://dx.doi.org/10.1109/tap.2011.2123055.

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38

Løkke, M., and A. Ostergaard. "Accurate synthesis of linear non-resonant narrow wall inclined slotted waveguide arrays." IET Microwaves, Antennas & Propagation 5, no. 13 (2011): 1646. http://dx.doi.org/10.1049/iet-map.2010.0443.

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39

Lupan, Lidia Maria, Daniela Lucia Manea, and Ligia Mihaela Moga. "Improving Thermal Performance of the Wall Panels Using Slotted Steel Stud Framing." Procedia Technology 22 (2016): 351–57. http://dx.doi.org/10.1016/j.protcy.2016.01.108.

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40

Peng, Wei, and Pei-Xue Jiang. "Effect of shock waves on supersonic film cooling with a slotted wall." Applied Thermal Engineering 62, no. 1 (2014): 187–96. http://dx.doi.org/10.1016/j.applthermaleng.2013.09.013.

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41

Koshkid’ko, V. G., Ya O. Galtsov, and D. A. Portnykh. "A Substrate Integrated Waveguide Slotted Antenna." Journal of the Russian Universities. Radioelectronics 26, no. 4 (2023): 70–80. http://dx.doi.org/10.32603/1993-8985-2023-26-4-70-80.

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Introduction. Slotted waveguide antenna arrays are widely used across centimeter- and millimeter-wavelength ranges due to numerous advantages, including their good directional properties, compact dimensions, flat shape, convenience of power supply, and high efficiency. At the same time, the current trend toward miniaturization of electronic devices and their integration requires new solutions, such as the development of devices based on wave-guides integrated into the substrate (Substrate Integrated Waveguide – SIW).Aim. To simulate a SIW-based slotted antenna with characteristics similar to t

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42

Nawaz Khan, M., M. N. Karimi, M. A. Khan, M. Y. Siddiqui, and T. Rehmaan. "Effect of undercut slots on the overall performance of microchannel heatsink." IOP Conference Series: Materials Science and Engineering 1259, no. 1 (2022): 012009. http://dx.doi.org/10.1088/1757-899x/1259/1/012009.

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Abstract In the current study, a numerical analysis has been performed to examine the performance characteristics of the slotted microchannel heat sink. Twelve equidistant slots are entrenched at the base wall of the channel. Four different shapes of slots are considered in this study. They are rectangular (case 1), trapezoidal (case 2), V (case 3) and curved shaped (case 4). Numerical simulations have been performed for these cases with Reynold’s number ranging between 150 to 350 with a constant heat flux of 100 W/cm2 and the results are compared with the plain channel. It is observed that ca

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43

Krestin, Evgeny A., and Vladimir B. Zhilnikov. "Pressure distribution study in cone slot gap drives of electric power systems." Urban construction and architecture 12, no. 3 (2022): 176–82. http://dx.doi.org/10.17673/vestnik.2022.03.25.

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The distribution of pressure in the conical slotted gaps of drives of electric power systems has been studied. A general expression is found to determine the pattern of pressure change along the flow of a viscous fluid in the gaps of non-contact seals, and special cases are also considered. For a narrowing gap, the maximum pressure will be in the section with the smallest gap. In this case, the plunger will tend to take a coaxial position. In the expanding gap, the maximum pressure will be in the section with a larger gap, so the plunger will be pressed against the wall of the sleeve by the fo

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Dong, Hong Ying, Wan Lin Cao, Hai Peng Wu, and Fang Fang Xu. "Seismic Behavior of Damage-Reduction Based, Energy Dissipation Composite Shear Walls." Advanced Materials Research 742 (August 2013): 34–39. http://dx.doi.org/10.4028/www.scientific.net/amr.742.34.

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A new damage-reduction based composite shear wall was proposed. It combines with three different energy dissipation units, which are the CFST column, SP deep beam and RC strip. The CFST column is set to be exposed outside or concealed inside the concrete. CFST columns and SP deep beams constitutes the core structure. During loading, RC strips between columns work with the core structure so as to reduce the damage and consume the energy. Four specimens with different design parameters, including 2 shear walls with exposed CFST columns and 2 with concealed CFST columns, were tested under horizon

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Kumar, Neeresh, Akshay Warkade, Bal Mukund Jha, and Seema Doongarwal. "Design and Development of a Conjoined Narrow Wall Slotted Waveguide Array Antenna with Low Side Lobe Levels." Defence Science Journal 75, no. 3 (2025): 300–303. https://doi.org/10.14429/dsj.20897.

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This paper discusses the development of a multipiece narrow wall slotted waveguide array antenna (SWAA) for the X-band frequency range (9.1 GHz - 9.5 GHz). Slots were cut on the narrow wall, and the SWAA operates as a travelling wave type. Slot angles were calculated via polynomial equations, whereas slot depths were determined on the basis of fixed resonance lengths corresponding to slot angles. A 54-slot prototype was developed by joining three waveguide pieces and then cutting the slots. The fabricated prototype was tested for both bench-level measurements and radiation pattern parameters,

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Sun, Hongyue, Jinku Bai, Weiye Ding, Xizeng Zhao, and Yifan Fan. "Numerical simulation on hydrodynamic performance of perforated caisson breakwater with slotted shoreward wall." Ocean Engineering 299 (May 2024): 117294. http://dx.doi.org/10.1016/j.oceaneng.2024.117294.

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Rona, Aldo, Renato Paciorri, and Marco Geron. "Design and Testing of a Transonic Linear Cascade Tunnel With Optimized Slotted Walls." Journal of Turbomachinery 128, no. 1 (2005): 23–34. http://dx.doi.org/10.1115/1.2101856.

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In linear cascade wind tunnel tests, a high level of pitchwise periodicity is desirable to reproduce the azimuthal periodicity in the stage of an axial compressor or turbine. Transonic tests in a cascade wind tunnel with open jet boundaries have been shown to suffer from spurious waves, reflected at the jet boundary, that compromise the flow periodicity in pitch. This problem can be tackled by placing at this boundary a slotted tailboard with a specific wall void ratio s and pitch angle α. The optimal value of the s-α pair depends on the test section geometry and on the tunnel running conditio

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Meyer, O., W. Nitsche, and I. Futterer. "Numerical and experimental investigations on the reduction of wind tunnel wall interference by means of adaptive slots." Aeronautical Journal 105, no. 1052 (2001): 571–80. http://dx.doi.org/10.1017/s0001924000012513.

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Abstract The flow in many wind tunnel experiments is affected by the presence of test section walls. The resulting interference can be minimised by correcting the measured model pressures, or by influencing the model flow directly with the use of ventilated or adaptive test section walls. The objective behind the latter technique is to guide the flow in the test section to achieve low interference (i.e. free flow) condition at the model. The most successful technique of flexible, adaptive walls is still restricted to small research wind tunnels due to its mechanical complexity. However, a very

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KRESTIN, Evgeny A. "UNSTEADY HYDRODYNAMIC PROCESSES IN THE SLIT GAPS NONCONTACT SEALS IN A STEP CHANGE IN PRESSURE." Urban construction and architecture 5, no. 1 (2015): 100–106. http://dx.doi.org/10.17673/vestnik.2015.01.15.

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Determination of leakage of fluid through the slotted annular gaps in dynamic studies leads to the discrepancy between the theoretical and experimental results. This discrepancy is particularly large for non-stationary processes in hydraulic systems. Dynamic characteristics of annular sealing cracks in a typical non-contact seals in stepwise (unit step) change of pressure are found. The velocity profile, the flow of leaks, the force of viscous friction on the channel wall are determined, the relaxation during the defined transition and the weighting function of the sealing gap are viewed.

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Pfaff, Christopher A. "A re-evaluation of the roof of the South Stoa at the Argive Heraion." Annual of the British School at Athens 96 (November 2001): 261–79. http://dx.doi.org/10.1017/s0068245400005293.

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The fifth-century BC South Stoa at the Argive Heraion was first excavated in the 1890s and was published in 1902 by E. Tilton. It was subsequently re-examined by J. J. Coulton, who clarified important aspects of the stoa's design. Ongoing investigations of the architecture of the Argive Heraion have now brought to light new evidence for the building which requires modification of the previous restorations of the roof. A series of slotted wall blocks assigned to the back wall of the building indicate that the stoa had a large shed roof instead of the saddle roof restored by Tilton and Coulton.

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