Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Field Measurements of Flow Velocities in Propeller Jets
Propellers of ships generate high velocities adjacent to quay walls, jetties and locks. Generally, a bottom protection is installed in order to prevent instability due to scour. Although design guidance exist, propeller-induced loads are far from fully understood and have predominantly been derived on the basis of model tests. The validation of the existing design methods is lacking, especially for specific types of bow thrusters. In this research, field measurements of flow velocities induced by a 4-channel bow thruster system against a vertical quay wall have been performed. Test results showed a flow characterized by low mean velocities and large fluctuations, with the extent of reflected flow limited to few meters from the quay wall and inflow beneath the suction points playing a role.
Field Measurements of Flow Velocities in Propeller Jets
Propellers of ships generate high velocities adjacent to quay walls, jetties and locks. Generally, a bottom protection is installed in order to prevent instability due to scour. Although design guidance exist, propeller-induced loads are far from fully understood and have predominantly been derived on the basis of model tests. The validation of the existing design methods is lacking, especially for specific types of bow thrusters. In this research, field measurements of flow velocities induced by a 4-channel bow thruster system against a vertical quay wall have been performed. Test results showed a flow characterized by low mean velocities and large fluctuations, with the extent of reflected flow limited to few meters from the quay wall and inflow beneath the suction points playing a role.
Field Measurements of Flow Velocities in Propeller Jets
Lecture Notes in Civil Engineering
Li, Yun (Herausgeber:in) / Hu, Yaan (Herausgeber:in) / Rigo, Philippe (Herausgeber:in) / Lefler, Francisco Esteban (Herausgeber:in) / Zhao, Gensheng (Herausgeber:in) / Cantoni, Irene (Autor:in) / Van Der Hout, Arne (Autor:in) / Houwing, Erik Jan (Autor:in) / Roubos, Alfred (Autor:in) / Ruijter, Michel (Autor:in)
Smart Rivers ; 2022 ; Nanjing
26.02.2023
19 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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