Next Article in Journal
Groundwater–Surface Water Interaction—Analytical Approach
Next Article in Special Issue
Dynamic Distributed Storage of Stormwater in Sponge-Like Porous Bodies: Modelling Water Uptake
Previous Article in Journal
Numerical 3D Model Development and Validation of Curb-Cut Inlet for Efficiency Prediction
Previous Article in Special Issue
Case Study of Transient Dynamics in a Bypass Reach
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Water
Volume 12
Issue 6
10.3390/w12061790
water-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Technical Note

Numerical Analysis of Drag Force Acting on 2D Cylinder Immersed in Accelerated Flow

by
Hyun A. Son
1,2,
Sungsu Lee
1,* and
Jooyong Lee
3
1
School of Civil Engineering, Chungbuk National University, Cheongju 28644, Korea
2
Naval Systems R&D Department, Daewoo Shipbuilding & Marine Engineering Co., Ltd., Geoje 53302, Korea
3
Department of Disaster Prevention Engineering, Chungbuk National University, Cheongju 28644, Korea
*
Author to whom correspondence should be addressed.
Water 2020, 12(6), 1790; https://doi.org/10.3390/w12061790
Submission received: 14 May 2020 / Revised: 12 June 2020 / Accepted: 16 June 2020 / Published: 23 June 2020
(This article belongs to the Special Issue Industrial and Environmental Fluid Mechanics)
Browse Figures
Versions Notes

Abstract

In this study, the drag exerted by an accelerating fluid on a stationary 2D circular cylinder is numerically investigated using Fluent 19.2 based on the finite-volume method. The SST k–ω model is chosen as the turbulence model because of its superiority in treating the viscous near-wall region. The results are compared to literature, and the numerical methods are validated. The acceleration of the inflow is analyzed for the range of 0.0981–9.81 m/s2, and the drag for each acceleration is compared. Additionally, the effect of the initial velocity on the drag acting on the circular cylinder is investigated at two initial velocities. As a result, a supercritical region, typically found under steady state conditions, is observed. Furthermore, vortex shedding is observed at a high initial velocity. This flow characteristic is explained via comparison with respect to the recirculation length and separation angle.
Keywords: sudden start; bluff body; 2D circular cylinder; accelerated flow; CFD sudden start; bluff body; 2D circular cylinder; accelerated flow; CFD

Share and Cite

MDPI and ACS Style

Son, H.A.; Lee, S.; Lee, J. Numerical Analysis of Drag Force Acting on 2D Cylinder Immersed in Accelerated Flow. Water 2020, 12, 1790. https://doi.org/10.3390/w12061790

AMA Style

Son HA, Lee S, Lee J. Numerical Analysis of Drag Force Acting on 2D Cylinder Immersed in Accelerated Flow. Water. 2020; 12(6):1790. https://doi.org/10.3390/w12061790

Chicago/Turabian Style

Son, Hyun A., Sungsu Lee, and Jooyong Lee. 2020. "Numerical Analysis of Drag Force Acting on 2D Cylinder Immersed in Accelerated Flow" Water 12, no. 6: 1790. https://doi.org/10.3390/w12061790

APA Style

Son, H. A., Lee, S., & Lee, J. (2020). Numerical Analysis of Drag Force Acting on 2D Cylinder Immersed in Accelerated Flow. Water, 12(6), 1790. https://doi.org/10.3390/w12061790

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop