Transient Model for the Hydrodynamic Force in a Hydraulic Capsule Pipeline Transport System

Yiming Zhao, Yongye Li () and Xihuan Sun
Additional contact information
Yiming Zhao: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Yongye Li: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Xihuan Sun: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Sustainability, 2023, vol. 15, issue 21, 1-14

Abstract: The hydraulic capsule pipeline (HCP) is an eco-friendly and sustainable pipeline transport option. The freight-carrying capsule is driven by hydraulic pipe flow. Fluid drag is generated by the principal dynamic force effect on the capsule, which could influence the capsule’s motion speed. To make the HCP more efficient, a transient model for the hydrodynamic force in an HCP was developed in this study. From a numerical simulation, the coherent vortex structures of fluctuating modes were observed, and the velocity iso-surfaces of the coherent vortex of the wake flow exhibited an annular trend in circumferential connection. Then, the hydrodynamic force was analyzed: the steady component and transient component were resolved, and the general trend in forces in terms of the transient components was that the maximum amplitude of forces reduced with an increase in mode order. Through short-term Fourier transform, the frequency components and their variations in terms of the entire time range could be acquired. The transient model in this study provided a perspective to build the connection between the flow structures and the hydrodynamic force. By the transient model, the transient component of hydrodynamic force can be explained as the fluctuation of coherent vortex structures.

Keywords: sustainable transport; hydraulic capsule pipeline; hydraulic engineering; pipeline (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/21/15575/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/21/15575/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:21:p:15575-:d:1273237

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().