Academic literature on the topic 'Tangential Spray'

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Journal articles on the topic "Tangential Spray"

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Zulkifli Abdul Ghaffar, Salmiah Kasolang, Ahmad Hussein Abdul Hamid, and Zolkapli Eshak. "Experimental Analysis of Tangential-Vane Swirl Atomizer Spray Angle." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 101, no. 2 (2023): 1–7. http://dx.doi.org/10.37934/arfmts.101.2.17.

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A swirl atomizer is a widely applied spray-generating device. The swirling motion of a swirl atomizer is induced either by a tangential inlet or a swirl-generating vane. The swirling effect produces a spray with a wide angle which is important in various applications such as gas cooling, diesel engine combustion, and automatic hand sanitizer. An intense swirling mechanism was reported to significantly affect the spray angle. An attempt was made by combining tangential inlet and swirl-generating vane in a single embodiment to create a more intense swirling effect. The experiment was conducted w
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KANKKUNEN, ARI, SANTERI KOIVISTO, KARI SAARI, MIKA JARVINEN, JAMES BIGGS, and ANDREW JONES. "Experiments and visualization of sprays from beer can and turbo liquor nozzles." February 2022 21, no. 2 (2022): 95–106. http://dx.doi.org/10.32964/tj21.2.95.

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Industrial scale swirl-type black liquor nozzles were studied using water as the test fluid. Simple water spraying experiments were found to be very beneficial for studying and comparing nozzles for black liquor spraying. These kinds of experiments are important for finding better nozzle designs. Three nozzle designs were investigated to understand the functional differences between these nozzles. The pres-sure loss of nozzle 1 (“tangential swirl”) and nozzle 3 (“turbo”) were 97% and 38% higher compared to nozzle 2 (“tan-gential swirl”). Spray opening angles were 75°, 60°, and 35° for nozzles
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Nasr, G. G., R. A. Sharief, and A. J. Yule. "High Pressure Spray Cooling of a Moving Surface." Journal of Heat Transfer 128, no. 8 (2005): 752–60. http://dx.doi.org/10.1115/1.2217747.

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A novel technique is described for investigating spray cooling of moving hot surfaces. An experimental investigation is described for vertically downwards water sprays impinging on a horizontal steel annulus of 250mm diameter with a surface temperature up to 600°C, and rotating at up to 120rpm, giving a tangential velocity of 1.35ms−1. The central homogeneous zones of sprays from full-cone atomizers are used at pressures up to 2.07MPa and the ranges of impacting spray parameters are 0.98to12.5kgm−2s−1 for mass flux, 49-230μm for volume median drop diameter, and 9.8-32.3ms−1 for impinging veloc
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Han, Z., Z. Xu, and N. Trigui. "Spray/wall interaction models for multidimensional engine simulation." International Journal of Engine Research 1, no. 1 (2000): 127–46. http://dx.doi.org/10.1243/1468087001545308.

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Models were developed to describe the spray wall impingement processes that take place in internal combustion engines. In this report focus is placed on the model formulation and experiment assessment of the spray/wall interaction submodels. It is identified that the Leidenfrost phenomenon is very unlikely to occur in a spark ignition (SI) engine including stratified-charge operation in a direct injection spark ignition (DISI) engine. A more comprehensive splashing/deposition threshold function is proposed to include the effects of surface roughness and pre-existing liquid film. Based on the w
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Ghate, Kushal, and Thirumalachari Sundararajan. "Effects of orifice divergence on hollow cone spray at low injection pressures." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 11 (2018): 4091–105. http://dx.doi.org/10.1177/0954410018813432.

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In this work, the effects of orifice divergence on spray characteristics have been reported. Parameters such as spray cone angle, liquid sheet thickness, coefficient of discharge, break-up length, and Sauter mean diameter are greatly affected by the half divergence angle [Formula: see text] at orifice exit. An experimental investigation is carried out in which water sprays from five atomizers having half divergence angle values of 0°, 5°, 10°, 15°, and 20° are studied at different injection pressures. Image processing techniques are used to measure spray cone angle and break-up length from spr
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Vecchio, C., F. Fabiani, M. E. Sangalli, L. Zema, and A. Gazzaniga. "Rotary Tangential Spray Technique for Aqueous Film Coating of Indobufen Pellets." Drug Development and Industrial Pharmacy 24, no. 3 (1998): 269–74. http://dx.doi.org/10.3109/03639049809085619.

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Zheng, Lei, Rui Zhao, Yong-Le Nian, Jun Liu, and Wen-Long Cheng. "Numerical and experimental study of the effects of tangential to axial velocity ratio and structural parameters inside the nozzle on spray characteristics." Physics of Fluids 35, no. 4 (2023): 043303. http://dx.doi.org/10.1063/5.0140753.

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Pressure swirl nozzles are widely applied in spray cooling, dust removal, and fuel injection. To better connect the nozzle structure with the internal flow to analyze their influence on spray parameters, this paper designs a nozzle structure and uses experimental measurement and computational fluid dynamics simulation methods to investigate the influence of the nozzle's tangential velocity to axial velocity ratio ( vτin/ vzin) and the swirl diversion channel eccentric distance ( dl) on the spray parameters. A phase Doppler particle analyzer was used in the experiment study to determine the spr
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Malkeson, S. P., U. Ahmed, A. L. Pillai, N. Chakraborty, and R. Kurose. "Evolution of Surface Density Function in an Open Turbulent Jet Spray Flame." Flow, Turbulence and Combustion 106, no. 1 (2020): 207–29. http://dx.doi.org/10.1007/s10494-020-00186-2.

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AbstractA three-dimensional Direct Numerical Simulation of an open turbulent jet spray flame representing a laboratory-scale burner configuration has been used to analyse the statistical behaviours of the magnitude of reaction progress variable gradient $$\left| {\nabla c} \right|$$ ∇ c [alternatively known as the Surface Density Function (SDF)] and the strain rates, which affect its evolution. The flame has been found to exhibit fuel-lean combustion close to the jet exit, but fuel-rich conditions have been obtained further downstream due to the evaporation of fuel droplets, which leads to the
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Langner, Marcel, Biwen Zhou, Florian Priese, and Bertram Wolf. "Statistical Investigation of Rotary Fluidized Bed Agglomeration Process with Tangential Spray and In-Line Particle Size Measurement for PAT Process Control." Processes 11, no. 4 (2023): 1066. http://dx.doi.org/10.3390/pr11041066.

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A statistical design of experiments for a rotary fluidized bed agglomeration process is performed to improve both the knowledge of the process and the influence of the process parameters. Agglomerates of a pharmaceutical formulation are manufactured in a laboratory fluidized bed rotor apparatus with a tangential spray nozzle. Particle size is measured in-line over the entire agglomeration process with a spatial filter velocimetry probe installed directly in the process chamber and off-line with dynamic image analysis for comparison. The influence of the process parameters spray rate, spray pre
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Chen, Chen, and Zhigong Tang. "Investigation of the spray formation and breakup process in an open-end swirl injector." Science Progress 103, no. 3 (2020): 003685042094616. http://dx.doi.org/10.1177/0036850420946168.

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The spray formation and breakup process in an open-end swirl injector were studied through experiments and numerical simulations. A high-speed shadowgraph system and a high-speed backlight system were adopted to record the spray. Volume of fluid was used as the interface tracking method to capture the evolution process. The filling process of the liquid film inside the injector was captured. The air core formation process as observed in the experiments differed from that depicted by the numerical simulation results. The results revealed that the spray pattern of the cross-section at the tangen
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Book chapters on the topic "Tangential Spray"

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Mahottamananda, Sri Nithya, D. N. Dilli Babu, and P. N. Kadiresh. "Effect of Number of Inlet Tangential Ports and Their Angle on Spray Characteristics of Plug Type Swirl Injector." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6619-6_15.

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Conference papers on the topic "Tangential Spray"

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Muthu, Selvan G., H. S. Muralidhara, Vinod Kumar Vyas, Kanth T. P. Dinesh, S. Kumaran, and R. Magesh. "Effect of Inlet Tangential Port Area on the Performance of Small – Scale Simplex Atomizer." In ASME 2012 Gas Turbine India Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gtindia2012-9520.

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An experimental investigation was conducted to study the effects of increased area of inlet tangential ports on the performance of small scale simplex atomizer. The spray characteristics of three different simplex atomizer representing increasing area of inlet tangential ports are examined using water as a working fluid. Measurements of coefficient of discharge, spray cone angle, Sauter mean diameter and droplet size distribution were carried out over wide range of injection pressure. Coriolis mass flow meter was used to measure coefficient of discharge. Spray cone angle was measured by image
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Zhang, Chi, Yuzhen Lin, Quanhong Xu, and Gaoen Liu. "Investigation of Tangential Trapped Vortex Combustor." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59089.

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An innovative concept of Tangential Trapped Vortex Combustor (TTVC) applying a swirling flow to eliminate the guide vanes of the compressor and turbine in the future gas turbine engines is presented via theoretical analysis and experimental investigation. In TTVC, the airflow is mostly whirlblast, and the processes of evaporation, mixing, and chemical reaction for the liquid spray combustion take place along the tangential direction. It is shown that the TTVC operation has the potential of improving combustion efficiency, widening combustion stability range, and reducing emissions, mainly due
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Selvan Govindaraj, Muthu, Muralidhara H. Suryanarayana Rao, Vinod Kumar Vyas, Karthy Shanmugasundaram, Narendran Venugopal, and Karthic Sankar. "Effect of Inlet Tangential Port Area on Droplet Size Distribution of Small-Scale Simplex Atomizer." In ASME 2013 Gas Turbine India Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gtindia2013-3549.

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An experimental investigation was conducted to study the effects of increased area of inlet tangential ports on the droplet size distribution of small-scale simplex atomizer. The spray characteristics of four different simplex atomizers representing increasing area of inlet tangential ports (diameter range 0.6 mm to 0.9 mm) are examined using water as working fluid. Measurements of droplet size and droplet size distributions of the four different atomizer configurations were carried using Malvern droplet size instrument at various downstream locations from final orifice exit. These measurments
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Alvarado, Jorge L., and Yen-Po Lin. "Multiple Droplet Impingements on Nanostructured Surfaces for Enhanced Spray Cooling." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44509.

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Spray cooling has been studied thoroughly over the years in an effort to understand its unique heat transfer potential. Spray cooling is characterized by its ability to dissipate high heat transfer rates while maintaining relatively uniform surface temperatures. Despite of all the recent developments, liquid-surface properties such as contact angle and surface tension have been shown to limit the ability of spray cooling to dissipate high heat flux. Recent high-speed images of multiple droplet impingent events have revealed that liquid film thickness, impact crown morphology, and tangential ve
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Mancilla, Paulo C., Pitchaiah Chakka, and Sumanta Acharya. "Performance of a Trapped Vortex Spray Combustor." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0058.

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The performance of a liquid-fueled trapped vortex (TV) combustor is analyzed both experimentally and computationally. The TV cavity, formed between a forebody and an afterbody, is placed coaxially inside a combustor shell. Fuel and primary air are injected from the inside face of the afterbody. The flame holding capability of this trapped vortex configuration is evaluated for different primary equivalence ratios. Very low overall lean-blow-out (LBO) equivalence ratios are obtained for the TV combustor over a wide range of annular and primary airflow rates. It is found that by injecting the pri
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Stringer, F. W., and A. N. Irwin. "Design Features Influencing the Distribution of Fuel Within the Spray From an Air Blast Fuel Injector." In ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/92-gt-235.

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This paper describes work carried out to determine the influence of several design features upon the performance of an air blast fuel injector. The design features studied were the number of tangential fuel holes feeding the swirl chamber, the depth of the swirl chamber, and the shape of the downstream section of the swirl chamber. The performance parameters considered were, fuel distribution, flow number, air side effective area, spray cone angle and spray SMD. The fuel used was aviation kerosine. Apparatus for the relatively simple and rapid determination of the fuel distribution within the
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Wu, Chuanyu, Leiying He, Xudong Hu, and Qinchuan Li. "CAD-Based Automatic Generation of Robot Trajectory in Shoe Spray Systems." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34153.

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Automatic generation of robot trajectory for adhesive spray is highly desirable for shoe manufacturing. However, nowadays robotic trajectories are programmed by teach-in instead of automatic approaches. To cope with it, an approach based on a programming tool will be described. It aims at enabling the automatic generation of robot spray trajectories from different kinds of shoe sole models in three-dimensional CAD files. Trajectory could be generated as an offset curve on the surface patch of shoe sole. A set of operating points in spray trajectory can be calculated by means of linear interpol
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Conrad, T., A. Bibik, D. Shcherbik, E. Lubarsky, and B. T. Zinn. "Modification of the Reaction Zone Using a Smart Fuel Injector for Control of Instabilities in Liquid Fueled Combustors." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68869.

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This paper describes an experimental investigation of suppressing combustion instabilities in a liquid fueled (n-heptane) atmospheric combustor incorporating an array of “smart” fuel injectors. These injectors were designed so that their spray properties could be manipulated without changing the overall operating conditions (power, mass flow rates, equivalence ratio, etc.) of the combustor. The dependence of these spray properties upon the smart injector settings was determined for a single injector using a series of cold flow experiments, including spray images and PDPA measurements of spray
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Guettler, Nico, Stephan Paustian, Qiaoyan Ye, and Oliver Tiedje. "Numerical and Experimental Investigations on rotary Bell Atomizers with predominant Air Flow Rates." In ILASS2017 - 28th European Conference on Liquid Atomization and Spray Systems. Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/ilass2017.2017.4650.

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For high-quality spray painting of small parts, a rotary bell atomizer with a narrow spray pattern is used in the automotive industry. The required unusual high shaping air flow rate yields in an atomization process predominated by a pneumatic atomization and rather than by a rotary atomization, called hybrid bell atomizer in this article. Numerical and experimental investigation on typical high-speed rotary bell atomizers, with rotation type of high rotational speed 40000-60000 rpm of the bell, were already successful demonstrated. For these high-speed rotary bell atomizer for painting bigger
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Levy, Y., V. Sherbaum, V. Ovcharenko, and V. Nadvani. "Study of Two Miniature Air-Assist Atomizers With Radial and Axial Air Swirlers." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90711.

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The performances of two types of miniature air-assist atomizers were investigated; one with air being directed to the liquid spray through radial-tangential air channels and the other with air supplied through a small axial swirler. The study has shown that droplet size is reduced significantly when the air velocity increases up to about 50 m/s. However, further increase in air velocity has only a weak effect on the droplet size. In the absence of air supply, elevating the liquid pressure causes a reduction in the droplet diameter. The maximum values of the droplet mass flux shifts to the spra
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