ANSYS Applications in Ocean Science and Engineering

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Propulsion Systems Rolls-Royce uses simulation for propeller design to reduce marine fuel consumption. According to a 2003 study from the University of Delaware, international commercial and military shipping fleets consume approximately 289 million metric tons of petroleum per year, which is more than twice the consumption of the entire population of Germany. The ANSYS FLUENT simulations run on the modified propeller geometry predicted that the efficiency would increase by 1 percent to 1.5 percent, and physical experiments confirmed that this was, in fact, the case. The new Kamewa CP-A propeller from Rolls-Royce Marine 54 Contours of pressure coefficient for the XF5 (left) and the new Kamewa CP-A (right). Insets: Photographs of the blade indicating the locations of the simulation where cavitation is present (noticeable as pitting). ANSYS FLUENT results helped reduce pressure at the blade root in the CP-A design, indicated by the lack of cavitation erosion present in the CP-A photo. © 2011 ANSYS, Inc. August 12, 2011
Propulsion Systems Cavitation Effects For water pumps, marine propellers, and other equipment involving hydrofoils, cavitation can cause problems such as vibration, increased hydrodynamic drag, pressure pulsation, noise, and erosion on solid surfaces. Most of these problems are related to the transient behaviour of cavitation structures. To better understand these phenomena, unsteady 3D simulations of cavitating flow around single hydrofoils are often performed and the results are compared to experiments 55 Unsteady propeller cavitation in the wake of a ship © 2011 ANSYS, Inc. August 12, 2011 Courtesy SVA-Potsdam (Potsdam Model Basin)
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ANSYS Applications in Ocean Science
Page 3 and 4: Perspective 3 © 2011 ANSYS, Inc. A
Page 5 and 6: 5 © 2011 ANSYS, Inc. August 12, 20
Page 7 and 8: Relevance to Science / Engineering
Page 9 and 10: Overview • Brief Introduction to
Page 11 and 12: One Picture of ANSYS ANSYS is the l
Page 13 and 14: Selected Academic Customers 13 © 2
Page 15 and 16: Typical Marine CFD Applications •
Page 17 and 18: 17 © 2011 ANSYS, Inc. August 12, 2
Page 19 and 20: Environmental: Scouring 19 © 2011
Page 21 and 22: Scouring: Examples 21 © 2011 ANSYS
Page 23 and 24: Advanced numerical modeling of the
Page 25 and 26: Modeling Approach 25 © 2011 ANSYS,
Page 27 and 28: Numerical simulation of scour aroun
Page 29 and 30: Environmental: Oil Spill and Cleanu
Page 31 and 32: Current CFD Model Full 3-dimensiona
Page 33 and 34: Wave Profiles 5m Amplitude and 500m
Page 35 and 36: Wave Velocity Profiles 5m Amplitude
Page 37 and 38: Oil Slick at Sea Surface 5m Amplitu
Page 39 and 40: Time History of Spread 5m amplitude
Page 41 and 42: Observations Spread pattern is diff
Page 43 and 44: Conclusions 43 43 Presented a detai
Page 45 and 46: Environmental/Marine: Noise MENCK h
Page 47 and 48: Environmental/Marine: Noise 1 2 3 4
Page 49 and 50: Energy: Wave Energy 49 © 2011 ANSY
Page 51 and 52: Energy: Wave Energy COLUMBIA POWER
Page 53: Overview • Brief Introduction to
Page 57 and 58: Marine: Sensor Design 57 © 2011 AN
Page 59 and 60: Marine: Sensor Design 59 © 2011 AN
Page 61 and 62: Conclusions ANSYS offers a broad an
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ANSYS Applications in Ocean Science and Engineering

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