Write your message


Volume 4 - Summer and Autumn 2015                   ijmt 2015, 4 - Summer and Autumn 2015: 1-9 | Back to browse issues page

XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Moonesun M, Korol Y M, Dalayeli H, Mahdian A, Brazhko A. Added Resistance of an AUV Moving Inside a Water Pipeline Due to Wall Proximity . ijmt 2015; 4 :1-9
URL: http://ijmt.ir/article-1-445-en.html
1- PhD student
2- Professor in ship design
3- Researcher
Abstract:   (9512 Views)

This paper evaluates the added resistance of a torpedo shape AUV, moving inside a water pipeline, due to wall effects within the tube. Today, there are long length pipelines of water or petroleum that need to regular inspection. Early detection of failure will help to prevent breakdown and avoid the huge cost of an accident. As pipelines are enclosed environments and difficult to access, pipeline inspection robots are increasingly used for routine inspection and early failure detection. In the engineering cases, the pipes are full of liquid because there is no possibility for evacuating the pipe and interrupting the liquid transfer. It may be with or without flow of water. Therefore, the AUV must be able to afloat inside the pipe and perform non-contact inspection. In dry pipes, inspection device has contact with the walls and moves on them but in full pipes, the AUV moves such as a torpedo or submarine. The pipes have limited diameter and because of the wall effects on the fluid flow around the AUV, the resistance will be more than the free flow condition. This added resistance should be accounted accurately because it is necessary for determination of vehicle speed, power demand, range and duration of operation. This paper considers a torpedo shape AUV moving inside the pipes with the different diameter. The resistance of this modeling will be compared with the resistance of free steam modeling. This analysis is performed by the Flow Vision (V.2.3) software based on CFD method and solving the RANS equations.

Full-Text [PDF 2106 kb]   (3248 Downloads)    
Type of Study: Research Paper | Subject: Submarine Hydrodynamic & Design
Received: 2015/08/28 | Accepted: 2015/12/6

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons License
International Journal of Maritime Technology is licensed under a

Creative Commons Attribution-NonCommercial 4.0 International License.