Abstract
The flow field has significantly impact on seeding performance in the suction seeding device. A three-dimensional, incompressible, viscous, RNG turbulence model and the SIMPLE method were used by computational fluid dynamics(CFD), and the flow fields of suction cylinder-seeder with different socket’s radiuses were simulated by Fluent. When vacuum is 4kPa and productivity is 350 trays/h, the simulant results show that pressure is uniform, velocity is stable, energy loss mainly occurs near slots and outlet, and there is less interaction among socket-slots; The effect of flow field on socket’s radius to the cylinder isn’t significant by contrasting different socket’s radiuses on the average turbulent kinetic energy, the average vacuum and the maximum difference of velocity behind slots; The experimental results show that the best seeding performance is 84.73% when the socket’s radius is 5.5mm. Although the performance should be improved, but any sockets are never plugged, which shows enough that the seeder is a very promising precision seeding device.
The paper is supported by the National Natural Science Fund Projects (Project number is 50775078), the National “11th Five-Year Plan” to support Projects (Project number is 2006BAD28B01-3), the earmarked fund for Modern Agro-industry Technology Research System and the fund for indraught of person with ability in colleges of Guangdong.
Chapter PDF
Similar content being viewed by others
References
Zhou, H., Ma, X., Yao, Y.: Research advances and prospects in the seeding technology and equipment for tray nursing seedlings of rice. Transactions of the CSAE 24(4), 301–306 (2008) (in Chinese)
Wu, M., Tang, C., Li, M., et al.: The present situation and countermeasures about seeding apparatus of paddy precision seeder. Chinese agricultural mechanization 3, 30–31 (2003) (in Chinese)
Karayel, D., Barut, Z.B., Ozmerzi, A.: Mathematical Modelling of Vacuum Pressure on a Precision Seeder. Biosystems Engineering 87(4), 437–444 (2004)
Guarella, P., Pellerano, A., Pascuzzi, S.: Experimental and Theoretical Performance of a Vacuum Seeder Nozzle for Vegetable Seeds. Journal of Agricultural Engineering Research (64), 29–36 (1996)
Yuan, Y., Ma, X., Jin, H., et al.: Study on vacuum chamber fluid field of air suction seed-metering device for rice bud-sowing. Transactions of the CSAM 36(6), 42–44 (2005) (in Chinese)
Wang, Z., Ma, X., Dong, R., et al.: Numerical simulation for air field of air-suction cylinder seeder. Journal of Jilin Agricultural University 31(6), 781–784 (2009) (in Chinese)
Chen, J., Li, Y., Wang, X., et al.: Finite element analysis for the sucking nozzle air field of air-suction seeder. Transactions of the CSAM 38(9), 59–62 (2007) (in Chinese)
Changle, P., Zhuomao, E., Su, C., et al.: Design and experimental study on air-suction tow-layer cylinder rice seeder. Transactions of the CSAE 5(9), 52–55 (2000)
Wang, F.: Analysis of Computational Fluid Dynamics: Theory and Application of Software CFD, pp. 124–125. Tsinghua University Press, Beijing (2005) (in Chinese)
Wu, B., Yan, H., Zhang, J.: Study on 3-D turbulent numerical simulation and performance foreacast of slurry pump. China Mechanical Engineering 20(5), 585–589 (2009) (in Chinese)
Deng, D.: Fluid flow handbook, p. 471. China Petrochemical Press, Beijing (2004) (in Chinese)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2011 IFIP International Federation for Information Processing
About this paper
Cite this paper
Zuo, Y., Ma, X., Qi, L., Liao, X. (2011). 3-D Turbulence Numerical Simulation for the Flow Field of Suction Cylinder-Seeder with Socket-Slots. In: Li, D., Liu, Y., Chen, Y. (eds) Computer and Computing Technologies in Agriculture IV. CCTA 2010. IFIP Advances in Information and Communication Technology, vol 344. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-18333-1_1
Download citation
DOI: https://doi.org/10.1007/978-3-642-18333-1_1
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-18332-4
Online ISBN: 978-3-642-18333-1
eBook Packages: Computer ScienceComputer Science (R0)