پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 158 |
| تعداد شماره‌ها | 6,240 |
| تعداد مقالات | 67,867 |
| تعداد مشاهده مقاله | 115,411,816 |
| تعداد دریافت فایل اصل مقاله | 90,181,427 |
ضریب زبری در لوله‌های زهکش پوشش‌دار و بدون پوشش صاف و موجدار | ||
| تحقیقات آب و خاک ایران | ||
| دوره 54، شماره 9، آذر 1402، صفحه 1381-1396 اصل مقاله (1.88 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2023.356581.669466 | ||
| نویسندگان | ||
| محمد محبیان بن بازاری؛ حمید زارع ابیانه** | ||
| گروه مهندسی آب، دانشکده کشاورزی، دانشگاه بوعلی‌سینا، همدان، ایران | ||
| چکیده | ||
| ضریب زبری پارامتری موثر در سرعت و بده آب در لوله‌های زهکشی است. ضریب زبری در مدل فیزیکی به ابعاد 100×41×56 سانتی‌متر به‌کمک سه سری آزمایش مستقل در دو لوله صاف و کنگره‌دار به‌قطر 63 و 56 میلی‌متر فاقد پوشش، دارای پوشش مواد معدنی و مصنوعی (توری) تعیین شد. میانگین ضریب زبری مانینگ برای لوله صاف با پوشش مصنوعی، معدنی، بدون پوشش 0106/0، 0111/0، 011/0 و برای کنگره‌دار 0088/0، 009/0، 0091/0 به‌دست آمد. میانگین ضریب زبری مانینگ از رابطه کانگیلت-کاتر برای لوله صاف با پوشش مصنوعی، پوشش معدنی، بدون پوشش 0048/0، 0048/0، 0048/0 و برای کنگره‌دار 0041/0، 0042/0، 0042/0 به‌دست آمد. میانگین n مانینگ از رابطه ترکیبی رینولدز-دارسی‌ویسباخ برای لوله صاف با پوشش مصنوعی، پوشش معدنی، بدون پوشش 005/0، 005/0، 0049/0 و برای کنگره‌دار 0048/0، 0048/0، 0049/0 به‌دست آمد. محاسبه آماره‌های RMSE و R2 بیان‌گر خطای کمتر رابطه گانگیلت-کاتر بود. جریان درون لوله‌های زهکش از نوع متغیر مکانی و متلاطم است که متاثر از نحوه ورود جریان‌های کوچک از منافذ به‌درون لوله است. این حالت ضمن بر هم زدن توزیع یکنواخت سرعت عرضی جریان، موجب بازدارندگی جریان و افزایش ضریب زبری مانینگ در 30 سانتی‌متر اول به‌دلیل دبی و سرعت کم جریان نسبت به 30 سانتی‌متر دوم شد. تفاوت ناچیز بین مقادیر ضریب زبری مانینگ با ضریب مانینگ گانگیلت-کاتر، کم اهمیت است و اعمال ضریب مانینگ 011/0 برای لوله صاف پوشش‌دار و 009/0 برای لوله کنگره‌دار پوشش‌دار رضایت‌بخش است. | ||
| کلیدواژه‌ها | ||
| ضریب مانینگ؛ گانگیلت-کاتر؛ ضریب زبری ترکیبی رینولدز و دارسی ویسباخ؛ لوله‌های صاف و موجدار؛ پوشش زهکشی | ||
| عنوان مقاله [English] | ||
| Experimental Study of roughness coefficient in smooth and corrugated drainage pipes with envelop and non-envelope | ||
| نویسندگان [English] | ||
| mohammad Mohebian Bone Bazari؛ Hamid zareabayneh | ||
| Department of Water Engineering, Faculty of Agriculture, Bu-Ali Sina University , Hamedan, Iran | ||
| چکیده [English] | ||
| Roughness coefficient is an effective factor on water velocity and discharge in drain pipes. Roughness coefficient in experimental box model with dimensions of 100×41×56cm was evaluated with two pipes of smooth and corrugated in a diameter of 63 and 56mm by three series of independent tests. The first set was done on pipes with mineral envelop, the second set on pipes with synthetic materials and the third one on pipes without envelop. The mean values of "n" Manning’s in the smooth pipe with synthetic and mineral envelope and non-envelop materials were measured 0.0106, 0.0111, 0.011, and for the corrugated pipe 0.0088, 0.009, 0.0091. The mean values of "n" Ganguillete-Kutter’s in the smooth pipe with synthetic and mineral envelop and non-envelop materials were obtained 0.0048, 0.0048, 0.0048, and for the corrugated pipe 0.0041, 0.0042, 0.0042. The "n" values from the Reynolds-Darcy Weissbach combination formula in the smooth pipe with synthetic and mineral envelop and non-envelop materials were calculated to be 0.0050, 0.0050, 0.0049 and for the corrugated pipe 0.0048, 0.0048, 0.0049. Two evaluation indexes (R2 and RMSE Error Value) indicated a better result for n value obtained by Ganguillet-Kutter formula. The flow inside the drainage pipes is a turbulent and spatially variable which is affected by the small flows entering the pipe through holes. This flow pattern, while disrupting the uniform distribution of the transverse velocity of the flow, caused flow inhibition and increased Manning's roughness coefficient in the first 30 cm due to the flow rate and low flow speed compared to the second 30 cm. The negligible difference between "n" Manning’s with "n" Ganguillete-Kutter’s is not important and applying 0.011 for Manning coefficient in smooth pipe and 0.009 for corrugating pipe with envelop is satisfactory. | ||
| کلیدواژه‌ها [English] | ||
| Manning coefficient, Ganguillet-Kutter, Combined roughness coefficient of Reynolds and Darcy Weisbach, Smooth and Corrugated pipe, Drainage envelope | ||
| مراجع | ||
|
AbdelDaiem, S., Hoevenaars, J., Mollinga, P., Scheumann, W., Slootweg, R., and Van Steenbergen, F. (2005). Agriculture drainage towards an integrated approach, Journal of Irrigation and Drainage System. 19 (2): 71-87. Abdullah, J.؛ Mohd Arif Zainol, M.R.R.؛ Riahi, A.؛ Zakaria, N.A.؛ Yusof, M.F.؛ Shaharuddin, S.؛ Alias, M.N.؛ Mohd Kasim, M.Z.؛ Abdul Aziz, M.S.؛ Mohamed Noor, N.؛ Hafiz Zawawi, M. and Ikhsan, J. (2023). Investigating the Relationship between the Manning Coefficients (n) of a Perforated Subsurface Stormwater Drainage Pipe and the Hydraulic Parameters. Sustainability. 15 (6929): 1-14. Broughton, S., Makhlouf, M.A. and Metzger, J. (1990). Features of large diameter corrugated polyethylene pipes manufactured at Aga, Egypt. Proceedings of Symposium on Land Drainage for Salinity Control in Arid and Semi-Arid Regions. 3: 142-1551. Cairo, Egypt. Clemmens, A. J., Eisenhauer, D. E., and Maheshwari, B. L. (2001). Infiltration and roughness equations for surface irrigation: How Form Influences Estimation. ASAE Meeting Paper. American Society of Agricultural and Biological Engineers. Ebrahimian, H., liaghat, A., Parsinejad, M., Akram M. (2010). Investigation of approach flow around drain pipe with rice husk envelope (case study: Ran-Behshahr project). Iranian Water Research Journal. 4 (1): 25-34. (In Persian). FAO, (2005). Materials for subsurface land drainage systems, FAO Irrigationand Drainage Paper 60. Rome. Ganguillet, E. and Kutter, W.R., (1869). An investigation to establish a new general formula for uniform flow of water in canals and river. Gupta, S.K. (2019). Drainage Engineering: Principles and Practices, Sientific publishers. P.p: 363. Guzmán, K., La Motta, E.J., McCorquodale, J.A., Roiss, S. and Ermogenous, M. (2007). Effect of Biofilm Formation on Roughness Coefficient and Solids Deposition in Small-Diameter PVC Sewer Pipes. Journal of Environmental Engineering. 133 (4): Pp 364-371. Hassanoghli, Alireza and Pedram. Shohre. (2013). Assessment of Clogging Potential of Three Different Synthetic Drainage Envelopes in Application of Saline Water and Soil by Permeability Test. Journal of Water and Soil. 26 (6): 1395-1409. (In Persian). Hinds, J. (1926). Side channel Spillway. Trans ASCE, 89: 881-927. Hosainzadeh, M., Navvabian, M. and Pirmoradian, N. (2015). Performance Evaluation of Organic and Mineral Development of Drainage Pipes, In Circumstances Similar to Those of Paddy Fields. Iranian Journal of Soil and Water Research. 46 (3): 499-508. (In Persian). International Plumbing Code (IPC), (2021). Fifth Version, 15 Chapter (Chapter 7: Sanitary Drainage). 1304 Pp. Irwin, R.W., and Motycka, J., (1979). Friction factors for corrugated plastic drainage tube, Journal of Irrigation and Drainage. division, ASCE, 105 (1): 29-36. Jafari Talukolaee, M., Shahnazari, A., and Ziatabar-Ahmadi, M.Kh. (2013). An investigation of the effect of two drainage envelope types on subsurface drainage flow rates in paddy fields of Mazandaran province. Journal Water Soil. 27 (1): 123-130. (In Persian). Karimi, B. (2016). Simulation of hydraulic performance in synthetic envelope pp450 and mineral envelope using Permeameter in laboratory condition. Journal of Water and Soil Conservation. 23 (1): 247-260. (In Persian). Kouchakzadeh, S. Akram, M. and Bagheri, F. 2006. Hydraulic performance of corrugated pipes based on their hydraulic performance. Journal of Agriculture Engineering Research, 7 (27): 1-18. (In Persian). Kouchakzadeh, S. and Bagheri, F. 2003. Determination of roughness coefficient for corrugated drainage pipes based on real flow conditions. Journal of Agriculture Sciense. (University of Tehran). 34 (3): 681-692. (In Persian). Maddahzadeh, S. M. A., Esmaili, K. and Ghahraman, B. (2017). Evaluation of Water Table Fluctuations and Drainage Discharge of Bi-Level Drainage System in a Layered Soil. JWSS - Journal of Water and Soil Science (Journal of Science and Technology of Agriculture and Natural Resources). 21 (1): 69-81. (In Persian). Malaekeh. P. (2017). Polyethylene pipes with corrugated walls. Iran Polymer Technology, Research and Development. 2 (2): 77-86. (In Persian). Management and Planning Organization. (2015). Guideline of design and implementation of drainage in asphalt pavement. no. 366. Pp. 107. (In Persian). Mangin, S. F. (2010). Development of an equation independent of Manning’s coefficient n for depth prediction in partially-filled circular culverts. Younstown State University. Master of Science in the Civil and Environmental Engineering Program. 159 Pp. Mehdinejadiani, B., Kashkuli, H.A. and Naseri, A.A. (2008). Evaluation of Synthetic Envelope for Subsurface Drains and Its Comparison with Granular Envelope Under Laboratory Conditions. Iranian Journal of Soil Research (IJSR). 22 (1): 113-125. (In Persian). Noshadi, M., Jamaldini, M. and Sepaskhah, A. (2015). Investigating the Performance of Gravel and Synthetic Envelopes in Subsurface Drainage. Journal of Water and Soil Science. 19 (71): 151-162. (In Persian). Nozari, H , Pour Sadri, A. and Zali, A. (2017). Experimental study of drainage pipes openings arrangement effect on drainage water salt load. Journal of Water and Soil Science. 27 (3): 187-198. (In Persian). Pazira, E., Liaghat, A..M., Darbandi, S., Liaghat, Z., Akram, M. and Azari, A. (2009) Material for subsurface land drainage systems. Publishers: Iranian National Committee on Irrigation and Drainage. Pp, 340 (In Persian). Rezaei Rad, H., Ebrahimian, H., Liaghat, A., Khalaji., F. and Shabani, M. (2021). Effect of inflow rate and initial soil moisture on Manning roughness coefficient in advance and storage phases in furrow irrigation. Journal of Water and Irrigation Management. 11 (2): 159-172. (In Persian). Ritzema, H.P. (1994). Drainage principles and application International Institute for land reclamation and improvement. Pub. No.16. Subramanya, K. (1986). Flow in open channel, first revised edition, Tata McGraw-Hill, New Delhi. Tullis, B.P., Barfuss, S.L and Christensen, R.T. (2006). Changes in hydraulic roughness coefficients for circumferentially strained M294 pipe. Transportation Research Record. 1976 (1): 149–154. Vice Presidency for Strategic Planning and Supervision. (2013). Criteria for Design and Commonly use Drawings of Subsurface Drainage Structures. No. 576. Pp. 30. (In Persian). Yang, H.Y., Wu, J., Guo, C., Li, H. and, Wu, Z. (2023). Effects of geotextile envelope and perforations on the performance of corrugated drain pipes. International Journal of Agricultural and Biological Engineering. 16 (1): 36-44. Youri, M.R., Sharifan, H., and Hezarjaribi, A. (2017). Extrimenal Assessment of Three Types of Envelopes Used in Subsurface Drainages. Iranian Journal of Irrigation and Drainage. 11 (1): 58-68. (In Persian). Zaghloul, N.A. (1998). Flow simulation in circular pipes with variable roughness using SWMM-EXTRAN model. Journal of Hydraulic Engineering. 124 (1): 73-76. | ||
|
آمار تعداد مشاهده مقاله: 78 تعداد دریافت فایل اصل مقاله: 53 |
||