Advanced SearchSearch Tips
Sloshing Analysis in Rectangular Tank with Porous Baffle
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Sloshing Analysis in Rectangular Tank with Porous Baffle
Cho, IL-Hyoung;
  PDF(new window)
An analytical model of liquid sloshing is developed to consider the energy-loss effect through a partially submerged porous baffle in a horizontally oscillating rectangular tank. The nonlinear boundary condition at the porous baffle is derived to accurately capture both the added inertia effects and the energy-loss effects from an equivalent non-linear drag law. Using the eigenfunction expansion method, the horizontal hydrodynamic force (added mass, damping coefficient) on both the wall and baffle induced by the fluid motion is assessed for various combinations of porosity, submergence depth, and the tank's motion amplitude. It is found that a negative value for the added mass and a sharp peak in the damping curve occur near the resonant frequencies. In particular, the hydrodynamic force and free surface amplitude can be largely reduced by installing the proper porous baffle in a tank. The optimal porosity of a porous baffle is near P=0.1.
Porous Baffl;Energy Loss;Drag Coefficient;Sloshing;Resonant Frequency;Added Mass;
 Cited by
Experimental Study on Sloshing in Rectangular Tank with Vertical Porous Baffle, Journal of Ocean Engineering and Technology, 2015, 29, 4, 291  crossref(new windwow)
Cho, I.H., 2013. Reflection and Transmission Coefficients by a Surface-Mounted Horizontal Porous Plate. Journal of Korean Society of Coastal and Ocean Engineering, 25(5), 327-334. crossref(new window)

Cho, I.H., Hong, S.W., 2004. Development of a Wave Absorbing System Using an Inclined Punching Plate. Journal of Ocean Engineering and Technology, 18(1), 1-6.

Bennett, G.S., McIver, P., Smallman, J.V., 1992. A Mathematical Model of a Slotted Wavescreen Breakwater. Coastal Engineering, 18, 231-249. crossref(new window)

Cho, I.H., Kim, M.H., 2008. Wave Absorbing System Using Inclined Perforated Plates. Journal of Fluid Mechanics, 608, 1-20.

Chwang, A.T., Chan, A.T., 1998. Interaction between Porous Media and Wave Motion. Annual Review of Fluid Mechanics, 30, 53-84. crossref(new window)

Crowley, S., Porter, R., 2012. The Effect of Slatted Screens on Waves. Journal of Engineering Mathematics, 76, 53-76.

Faltinsen, O.M., Firoozkoohi, R., Timokha, A.N., 2011. Analytical Modeling of Liquid Sloshing in a Two-Dimensional Rectangular Tank with a Slat Screen. Journal of Engineering Mathematics, 70, 93-109. crossref(new window)

Fediw, A., Isyumov, N., Vickery, B., 1995. Performance of a Tuned Sloshing Water Damper. Journal of Wind Engineering and Industrial Aerodynamics, 57, 237-247. crossref(new window)

Ibrahim, R.A., 2005. Liquid Sloshing Dynamics, (Theory and Applications). Cambridge University Press.

Mei, C.C., 1989. The Applied Dynamics of Ocean Surface Waves. Advanced Series on Ocean Engineering. 1, World Scientific, Singapore.

Mei, C.C., Liu, P.L. F., Ippen, A.T., 1974. Quadratic Head Loss and Scattering of Long Waves. Journal of Waterway, Harbour and Coastal Engineering Division, 99, 209-229.

Sollitt, C.K., Cross, R.H., 1972. Wave Transmission through Permeable Breakwaters. Proceedings of the 13th Conference on Coastal Engineering. ASCE, Vancouver, Canada, 1827-1846.

Warnitchai, P., Pinkaew, T., 1998. Modelling of Liquid Sloshing in Rectangular Tanks with Flow-Dampening Devices. Engineering Structure, 20, 593-600. crossref(new window)

Wu, J., Wan, Z., Fang, Y., 1998. Wave Reflection by a Vertical Wall with an Horizontal Submerged Porous Plate. Ocean Engineering, 25(9), 767-779. crossref(new window)

Yu, X., 1995. Diffraction of Water Waves by Porous Breakwaters. Journal of Waterway Port, Coastal, Ocean Engineering, 121, 275-282. crossref(new window)