Velocity caps are often used in connection with for instance offshore intake sea water for the use of for cooling water for power plants or as a source for desalinization plants. The intakes can also be used for river intakes. The velocity cap is placed on top of a vertical pipe. The vertical pipe leads the water into another pipe or tunnel system. A pressure gradient generated by the water level difference between the sea and basin drives the flow through the tunnel system. The tunnel system is often in the order of a couple kilometers long. Based on CFD analyses (computational fluid dynamics) this paper investigates the current and wave forces on the velocity cap and the vertical cylinder. The Morison’s force model was used in the analyses of the extracted force time series in from the CFD model. Further the distribution of the inlet velocities around the velocity cap was also analyzed in detail in the wave case.
Skip Nav Destination
ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
May 31–June 5, 2015
St. John’s, Newfoundland, Canada
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5655-0
PROCEEDINGS PAPER
Analyses of Current and Wave Forces on Velocity Caps
Erik Damgaard Christensen,
Erik Damgaard Christensen
Technical University of Denmark, Kgs. Lyngby, Denmark
Search for other works by this author on:
Jeppe Buhrkall,
Jeppe Buhrkall
Ramboll Oil & Gas, Copenhagen, Denmark
Search for other works by this author on:
Mark C. D. Eskesen,
Mark C. D. Eskesen
Ramboll Oil & Gas, Copenhagen, Denmark
Search for other works by this author on:
Bjarne Jensen
Bjarne Jensen
Technical University of Denmark, Kgs. Lyngby, Denmark
Search for other works by this author on:
Erik Damgaard Christensen
Technical University of Denmark, Kgs. Lyngby, Denmark
Jeppe Buhrkall
Ramboll Oil & Gas, Copenhagen, Denmark
Mark C. D. Eskesen
Ramboll Oil & Gas, Copenhagen, Denmark
Bjarne Jensen
Technical University of Denmark, Kgs. Lyngby, Denmark
Paper No:
OMAE2015-41907, V007T06A043; 10 pages
Published Online:
October 21, 2015
Citation
Christensen, ED, Buhrkall, J, Eskesen, MCD, & Jensen, B. "Analyses of Current and Wave Forces on Velocity Caps." Proceedings of the ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. Volume 7: Ocean Engineering. St. John’s, Newfoundland, Canada. May 31–June 5, 2015. V007T06A043. ASME. https://doi.org/10.1115/OMAE2015-41907
Download citation file:
15
Views
Related Proceedings Papers
Related Articles
Time-Domain Simulation of Second-Order Diffracted Forces on Marine Structures in Multidirectional Irregular Seas
J. Offshore Mech. Arct. Eng (October,2022)
Identification and Investigation of Extreme Events Using an Arbitrary Lagrangian–Eulerian Approach With a Laplace Equation Solver and Coupling to a Navier–Stokes Solver
J. Offshore Mech. Arct. Eng (December,2023)
The Mediterranean-Dead Sea Project: A Mathematical Model and Dynamic Optimization of a Solar-Hydroelectric Power Plant
J. Sol. Energy Eng (November,1980)
Related Chapters
Cooling System Case Studies
Thermal Power Plant Cooling: Context and Engineering
Establishing Unmanning Criteria for a Jacket Structure on the NCS
Ageing and Life Extension of Offshore Facilities
Development of Nuclear Boiler and Pressure Vessels in Taiwan
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 3, Third Edition