TY - JOUR
T1 - Textured pipe-in-pipe system
T2 - A compound passive technique for vortex-induced vibration control
AU - Matin Nikoo, Hamid
AU - Bi, Kaiming
AU - Hao, Hong
N1 - Funding Information:
The authors would like to acknowledge the support from Australian Research Council Discovery Early Career Researcher Award (DECRA) DE150100195 for carrying out this research.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2020/2
Y1 - 2020/2
N2 - A compound passive vortex-induced vibration (VIV) control technique, namely the textured pipe-in-pipe (Textured-PIP) system, is introduced in the present study for VIV suppression. This novel system, which is modified from the conventional PIP, includes a smooth inner pipe to transport the natural resources and a textured outer pipe to protect the inner pipe, and the inner and outer pipes are connected together by the optimized springs and dashpots. With such a design, the VIV responses are mitigated by appreciating the suppression mechanisms of tuned mass damper (TMD) and surface roughness. Three-dimensional (3-D) computational fluid dynamics (CFD) analyses are carried out to examine the effectiveness of the proposed method. For comparison and demonstration of the vibration mitigation effectiveness, the responses of a smooth pipe and a textured pipe of the same mechanical properties and mass are also investigated. The results show that the textured-PIP technique can more evidently suppress the VIV compared to the textured pipe.
AB - A compound passive vortex-induced vibration (VIV) control technique, namely the textured pipe-in-pipe (Textured-PIP) system, is introduced in the present study for VIV suppression. This novel system, which is modified from the conventional PIP, includes a smooth inner pipe to transport the natural resources and a textured outer pipe to protect the inner pipe, and the inner and outer pipes are connected together by the optimized springs and dashpots. With such a design, the VIV responses are mitigated by appreciating the suppression mechanisms of tuned mass damper (TMD) and surface roughness. Three-dimensional (3-D) computational fluid dynamics (CFD) analyses are carried out to examine the effectiveness of the proposed method. For comparison and demonstration of the vibration mitigation effectiveness, the responses of a smooth pipe and a textured pipe of the same mechanical properties and mass are also investigated. The results show that the textured-PIP technique can more evidently suppress the VIV compared to the textured pipe.
KW - CFD
KW - Passive VIV suppression
KW - Textured-PIP system
UR - http://www.scopus.com/inward/record.url?scp=85077309723&partnerID=8YFLogxK
U2 - 10.1016/j.apor.2019.102044
DO - 10.1016/j.apor.2019.102044
M3 - Journal article
AN - SCOPUS:85077309723
SN - 0141-1187
VL - 95
JO - Applied Ocean Research
JF - Applied Ocean Research
M1 - 102044
ER -