The Influences of the Nozzle Throat Length and the Orifice Grooving Degree on Internal Flow Field for a Multi-Entry Fan Nozzle Based on FLUENT — Oak Academic Publishing
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The Influences of the Nozzle Throat Length and the Orifice Grooving Degree on Internal Flow Field for a Multi-Entry Fan Nozzle Based on FLUENT
Beijing Research Center of Intelligent Equipment for Agriculture, Beijing, China
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National Research Center of Intelligent Equipment for Agriculture, Beijing, China
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Key Laboratory of Agri-Informatics, Ministry of Agriculture, Beijing, China
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Beijing Key Laboratory of Intelligent Equipment Technology for Agriculture, Beijing, China
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Beijing Key Laboratory of Intelligent Equipment Technology for Agriculture, Beijing, China
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Beijing Key Laboratory of Intelligent Equipment Technology for Agriculture, Beijing, China
1 Beijing Research Center of Intelligent Equipment for Agriculture, Beijing, China
2 National Research Center of Intelligent Equipment for Agriculture, Beijing, China
3 Key Laboratory of Agri-Informatics, Ministry of Agriculture, Beijing, China
4 Beijing Key Laboratory of Intelligent Equipment Technology for Agriculture, Beijing, China
5 Beijing Key Laboratory of Intelligent Equipment Technology for Agriculture, Beijing, China
6 Beijing Key Laboratory of Intelligent Equipment Technology for Agriculture, Beijing, China
Spray nozzle is a key component in equipment for plant protection and water-saving irrigation. The fan nozzle is a kind of spray nozzle, which is widely used in agriculture and forestry for irrigation and control of diseases, insects, and weeds. In consideration of the increasing velocity of the flow field, when the hydraulic pressure remains unchanged and the flow path becomes narrow, and because the increase of the velocity of spray drops can increase the penetrability of spray drops into the plant canopy, a kind of new fan nozzle with multi entries and simple inner structure was designed and the influences of its structure parameters on the inner flow field were analyzed using FLUENT software. The experimental results showed that the influence of the throat length on the inner flow field of the nozzle was insignificant, while the orifice grooving degree had a significant effect on inner flow field of the nozzle. The larger the grooving degree was, the smaller the pressure and velocity of internal flow field of the nozzle. The nozzle throat length had little influence on the velocity change of internal flow field. Positive correlation was shown between throat length and flow field velocity.
KeywordsFan NozzleOrificeSprayFLUENTMulti-EntryInner Flow Field
Yang, X.-J., Yan, H.-R. and Zhou, H.-Y. (2005) Experimental Study on Fan Nozzle. Chinese Agricultural Mechanization, No. 1, 39-42.
Meng, Y.-H., Zhou, G.-Q., Wu, C.-B., Wang, Z.-G. and Xu, X.-S. (2014) Discussion on Application and Extension of UAV Used for Agricultural Plant Protection in China. China Plant Protection, 34, 33-39.
Torrent, X., Garcerá, C., Moltó, E., et al. (2017) Comparison between Standard and Drift Reducing Nozzles for Pesticide Application in Citrus: Part I. Effects on Wind Tunnel and Field Spray Drift. Crop Protection, 96, 130-143. https://doi.org/10.1016/j.cropro.2017.02.001
Xing, Y.-Y., Han, J.-Y. and Liu, G.-C. (2013) The Analysis of the Prevention and Control of Garden Plant Diseases and Insect Pests. Heilongjiang Agricultural Sciences, No. 8, 51-54.
Lu, Y. and Zhang, W.-D. (2003) Pesticide and Environmental Sustainable Development. Agricultural & Technology, No. 1, 1-5.
Lin, Z.-L., Guo, Y.-Q., Pu, Y., Mao, J.-S., Xia, K.-B., Yang, J. and Cheng, Z.-Q. (2011) Recent Advances in Research in Biological Control of Tobacco Diseases and Pests. Acta Tabacaria Sinica, 17, 90-94.
Liu, P.-Z. (2007) Design of Distribution Bench for Precision Measuring Spray Nozzle Integrative Performance and on Fan Spray Nozzle. Nanjing Agricultural University, Nanjing.
Dai, X.-F. (2003) Development Strategy of Plant Protection Science and Technology in China. Chinese Academy of Agricultural Sciences, Beijing.
Zhai, Y. (2006) Study on Theory and Model of Chinese Ecological Agriculture. Northwest Agriculture & Forestry University, Xianyang.
Xu, Y.-L. (2009) Study on Mixers for Plant Protection Machinery and Chemical In-Line-Mixing Performances. Nanjing Forestry University, Nanjing.
Ru, Y. (2009) Research on Aerial Pesticide Electrostatic Spraying System and Its Application. Nanjing Forestry University, Nanjing.
Wang, X. (2000) Study on Micrometerological Characterization and Herbicide Spray Application in Different Height Wheat Stubble Fields. China Agricultural University, Beijing.
Zhang, M. (2016) Sector and Cone Sprayer with Air Assisted Device Performance Test Research. Shihezi University, Shihezi.
Fan, X.-B., Deng, W. and Wu, G.F. (2016) Research Progress of Spray Drift Control Technology. Journal of Agricultural Mechanization Research, 38, 1-9.
Zhang, J. (2015) Research on Mechanism of Enhancing Deposition and Synergistic Effect of the Spray Adjuvants on Pesticide. Gansu Agricultural University, Lanzhou.
Shen, C.-J. (2014) Experimental Research and Numerical Simulation Effervescent Atomization Spray Nozzle. Shihezi University, Shihezi.
Deng, W., He, X.K. and Ding, W.M. (2009) Experimental Study on Improving Deposition Rate Using PWM-Based Intermittent Spray from Enlarged Nozzle. Transactions of the CSAE, 25, 104-108. (In Chinese)
Xie, C., He, X.-K., Song, J.-L., et al. (2013) Comparative Research of Two Kinds of Flat Fan Nozzle Atomization Process. Transactions of the Chinese Society of Agricultural Engineering, 29, 25-30. (In Chinese)
Garcerá, C., Moltó, E. and Chueca, P. (2017) Spray Pesticide Applications in Mediterranean Citrus Orchards: Canopy Deposition and Off-Target Losses. Science of the Total Environment, 599-600, 1344. https://doi.org/10.1016/j.scitotenv.2017.05.029
Bozdogan, A.M., Erdem, T. and Bozdogan, N.Y. (2017) Determination of Residue, Drift and Biological Efficacy of Different Spray Methods against Flower Thrips (Frankliniella spp.) (Thys. Thripidae) in Strawberries. AMA Agricultural Mechanization in Asia Africa & Latin America, 48, 27-32.
Salvador, R., Bautista-Capetillo, C., Burguete, J., et al. (2009) A Photographic Method for Drop Characterization in Agricultural Sprinklers. Irrigation Science, 27, 307-317. https://doi.org/10.1007/s00271-009-0147-2
Miller, P.C.H., Ellis, M.C.B., Katan, J., et al. (2000) Effects of Formulation on Spray Nozzle Performance for Applications from Ground-Based Boom Sprayers. Crop Protection, 19, 609-615. https://doi.org/10.1016/S0261-2194(00)00080-6
Burguete, J., Playan, E., Montero, J., et al. (2003) Improving Drop Size and Velocity Estimates of an Optical Disdrometer: Implications for Sprinkler Irrigation Simulation. Transaction of the ASABE, 50, 2103-2116. https://doi.org/10.13031/2013.24112
Liu, G., Zhang, X.H., Fan, G.Q., Duan, J.B., Chu, X.Q., Zhou, G.P., Chen, X. and Wang, Y. (2014) Application Status and Development Trend of Cotton Spraying Machine. Journal of Agricultural Mechanization Research, 36, 225-228.
Hu, B. (2008) Study on the Properties of Corona Plasma Discharge Atomization and Design of Sprayer Heads. Chang’an University, Chang’an.
Luo, Y. (2008) Numerical Simulation of Interior Flow-Field about Plant Protection Nozzle. Hunan Agricultural University, Changsha.
Cui, J. (2014) Mechanisms of Multi-Directional Breakup and Atomization of Liquid Jets and Performance Analysis. Hebei Agricultural University, Baoding.
Fan, R. (2014) The Establishment of Spectrum and the Development of Application Software of Nozzle for Plant Protection. Northwest Agriculture & Forestry University, Xianyang.
Shen, C.-J., Tang, Z.-H., Meng, X.-J., Jia, S.-X., Zhou, Y. and Zheng, X. (2011) The Material Abrasion Properties and Anti-Attrition Methods of Plant Protection Nozzles. Journal of Agricultural Mechanization Research, 33, 21-24.
Chen, Y.-J. (2009) Parametric Design and Experimental Investigations of Fan Nozzle Based on RP. Nanjing Agricultural University, Nanjing.
Zhang, Q., Yuan, S.Q., Liu, J.P., et al. (2016) Optimization Design of Nozzle and Numerical Simulation of Internal Flow Field in Low-Pressure Sprinkler. Journal of Drainage and Irrigation Machinery Engineering, 34, 449-454. (In Chinese)
Yuan, S.Q., Zhu, X.Y., Li, H. and Ren, Z.Y. (2005) Numerical Simulation of Inner Flow for Complete Fluidic Sprinkler Using Computational Fluid Dynamics. Transactions of the Chinese Society for Agricultural Machinery, 36, 46-49.
Ding, X.H. (2018) The Design of the Multi-Channel Combined Nozzle of the Air-Borne Variable Sprayer and Study on the Performance. Nanjing Forestry University, Nanjing.
Zhang, J.-W., Liu, S.-Y., Feng, Y., Zhang, X.-L. and Wang, N.-C. (2017) Numerical Simulation of Radial Flow Field in Multi-Nozzle Impinging Stream Reactor. Journal of Shenyang University of Chemical Technology, 31, 50-55+90.
Sun, Y., Liu, X.J., Zhang, H.Y., Liu, F.J., Zhang, Q.Q. and Jin, B. (2013) Development of Gas-Solid Two-Phase Flow-Reaction CFD Model for Vortex Reactor. Transactions of the Chinese Society for Agricultural Machinery, 44, 194-200.
Zhang, S.J., Li, X.H., Zhu, B.L. and Hu, Q.B. (2009) Applicability of k-ε Eddy Viscosity Turbulence Models on Numerical Simulation of Centrifugal Pump. Chinese Journal of Mechanical Engineering, 45, 238-242. https://doi.org/10.3901/JME.2009.04.238
Huang, Y. (2005) Numerical Simulation of Flow-Field around the Building Based on Fluent. Huazhong University of Science and Technology, Wuhan.