Modeling and Simulation of the Erosion Rate in Hydraulic Structures

Authors

  • Shams Cheyad civil engineering department/wasit university
  • Ali N. Hilo Civil engineering department, Wasit University, Wasit, Iraq
  • Thaar S. Al-Ghasham Civil engineering department, Wasit University, Wasit, Iraq
  • Ali Hameed Abd Mechanical Engineering department, College of Engineering, Wasit University
  • Rawaa H. Ismaeil Civil engineering department, Wasit University, Wasit, Iraq

DOI:

https://doi.org/10.31185/ejuow.Vol10.Iss1.239

Keywords:

concrete erosion, hydraulic structures, ANSYS

Abstract

Basically, the durability of hydraulic structures is heavily influenced by concrete surface resistance against mechanical wear. Hydro-abrasion is the term used to describe deterioration of concrete surface inflicted by the continuous removal of surface material due to the effect of water-dragged solids. This type of cumulative damage for the surface of concrete may be seen in practically all hydraulic systems, in varying degrees of severity. Essentially, such hydro-abrasive concrete wear reduces the life span of the hydraulic structure, and as a result of the maintenance necessary, the facility's non-operation during the repair time increases costs. The impact employed by the flow inclination angle, density (sand concentration in water), and velocity were studied in this work. The three various angles (30°, 45°, and 60°) different densities (35 and 45 kg/m3), and different velocities of 600, 900, and 1200 rpm were numerically determined using the program of ANSYS and the discrete phase model (DPM) for simulating the fluid solids. According to the directed numerical simulation, the greatest rate of erosion was observed when the inclination angle of the flowing water was 60°, while the least value was obtained when the inclination angle of flow was 45°, in addition, the erosion rate increases as the density and velocity increases.

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References

Hilo A N, Ghasham T S, Hamedi M H, Ayoob N S and Abd A H 2019 Numerical and experimental study of abrasion erosion in hydraulic structures of high-velocity water flow In 2019 12th International Conference on Developments in eSystems Engineering (DeSE) 415-420

Ismaeil, R. H., Hilo, A. N., Al-Gasham, T. S., & Abd, A. H. (2021, February). Concrete Erosion Modelling by Water Jet using Discrete Phase Method. In IOP Conference Series: Materials Science and Engineering (Vol. 1058, No. 1, p. 012032). IOP Publishing.‏

Liu, Y.W., Yen, T., and Hsu, T.H., Abrasion erosion of concrete by water-borne sand, Cement and concrete research, 36 (2006) 1814-1820.

Abid, S., Hilo, A., and Daek, Y., Experimental tests on the underwater abrasion of engineered cementitious composites, Construction and building materials, 171 (2018) 779-792.

Turk, K., and Karatas, M., Abrasion resistance and mechanical properties of self-compacting concrete with different dosages of Fly ash/silica fume, Indian journal of engineering and materials science, 18 (2011)49-60.

Messa, G., V., Branco, R., D., Filho, J., G., D., and Malavasi, S., A combined CFD-experimental method for abrasive erosion testing of concrete, J. hydrol. hydromech, 1 (2018) 121-128

Abid S R, Shamkhi M S, Mahdi N S and Daek Y H 2018 Hydro-Abrasive Resistance of Engineered Cementitious Composites with PP and PVA Fibers Constr. Build. Mater 187 168-177.

Shamsai A, Peroti S, Rahmani K and Rahemi L 2012 Effect of water-cement ratio on abrasive strength, porosity and permeability of nano-silica concrete World Appl. Sci. J. 17 929–933

Grdic Z J, Curcic G AT and Ristic N S 2012 Despotovic, Abrasion resistance of concrete microreinforced with polypropylene fibers Constr. Build. Mater 27 305–312

Liu Y W 2007 Improving the abrasion resistance of hydraulic-concrete containing surface crack by adding silica fume, Constr. Build. Mater 21 972–97

Momber A W 2016 A probabilistic model for the erosion of cement-based composites due to very high-speed hydro-abrasive flow Wear 368 39–44

Fluent ANSYS 2013 ANSYS Fluent Theory Guide15.0. ANSYS Canonsburg PA 33

Fluent ANSYS 2013 ANSYS Fluent User’ s Guide r15. Chapter 6 223-247

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Published

2022-04-01

How to Cite

Cheyad, S., Hilo , A. N. ., Al-Ghasham , T. S. ., Hameed Abd , A. ., & H. Ismaeil , R. . (2022). Modeling and Simulation of the Erosion Rate in Hydraulic Structures. Wasit Journal of Engineering Sciences, 10(1), 46–55. https://doi.org/10.31185/ejuow.Vol10.Iss1.239