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44Maritime Reporter & Engineering News pect that optimization software like FRIENDSHIP-Framework will be ex- tensively used in the future to help en- gineers in various optimization tasks, especially when it comes to unconven- tional designs, energy-saving devices etc. Also, coupling of CFD-tools to fi- nite-element codes for structural analy-sis is already becoming a commonplace,allowing for analysis of complex fluid- structure interaction problems. Taking compressibility of both air and water into accountand using fine spatial grids and small time steps will eventually lead to prediction of hydro- and vibro- acoustic effects. It is also expected that research and education in the field of simulation in marine engineering willcontinue to be supported by both indus-try and governments, since even the best tools are only useful in hands of capa-ble users.TECHNICAL FEATURE CAD/CAM Fig. 9: Computational grid around pro- peller and rudder (highlighted isthe boundary of the region rotating with propeller). Fig. 10: Predicted velocity field in the pro- peller wake.Fig. 11: Determination of self-propulsion point by interpolation.Literature 1.Ferziger, J.H., Peric, M.: Computational Methods for Fluid Dynamics, 3rd ed., Springer, Berlin (2003); also available asNumerischeStrömungsmechanik, Springer, Berlin (2008).2.Enger, S., Peri, M., Peric, R.: Simulation of Flow around KCS-Hull, in Ref. 3, pp. 411-416. 3.Larson, L., Stern, F., Visonneau, M.: Gothenburg 2010 ? A Workshop on Numerical Ship Hydrodynamics, Proceedings, Vol. II, Chalmers University of Technology, Report No. R- 10:122 (2010).4.Bucan, B., Buca, M.P., Ru?ic, S.: Numerical Modelling of the Flow Around the Tanker Hull at Model Scale, Brodogradnja, Vol. 59, pp. 117-122 (2008).5.Palm, M., Jürgens, D., Bendl, D.: Numerical and Experimental Study on Ventilation for Azimuth Thrusters and Cycloidal Propellers, Proc. 2nd Int. Symp. Marine Propulsors smp?11, Hamburg, June 2011.6.Simonsen, C.D., Nielsen, C.K.: CFD-Based Estimation of Potential Power Saving for ShipsWith Fuel-Saving Rudder-Propeller Devices, FORCE Technology Report, 2011. MR#10 (42-49):MR Template 10/4/2012 11:12 AM Page 44