标签：cylinder Williamson 1997 subjected flow Re plane subcritical

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Table

Table of Contents

• 1. table
  • 1.1. validation
  • 1.2. khalak and Williamson,1997, JFS
• 2. setups
• 3. new contribution from guo fei
• 4. english

1 table

viv of a cylinder near a plane boundary

governing and influencing parameters:

• Re(flow regimes)
• G/D
• m*ξ (Govardhan & Williamson 2006)
• BL(laminar, turbulent, thickness/G)

8.3.2 sumer, 1997

Authors, year

DOF

m*ξ

ξ

Re

flow regime

G/D

BL

Current

waves kc

methods

New

Methods

Ur

independent variables

dependent variables

ref

Chern, 2018

200

laminor

effect of viv on plane boudnary(skin friction)

Num. 2D, 2DOF

412

G/D, Ur

X, Y,Cf, fv/fn, trajectory

1

A.Munir, 2018,

5000

subcritical(TrSL)

2DOF, near plane, osciallatory flow

num. 2D, 2DOF

kc,5,10 ; G/D,0.01, .4, 1. \infity

Barbosa, 2017

7250, 10,000, 12,500, 15,500

subcritical

Hsieh, 2016

3036~3924

subcritical

Chung, 2016

100

laminor

khalak and Williamson,1997

2

0.0108,0.00858,0.0135

steady

-

exp.

• flow regime, refer to 1-1, zdravkovich,1997
• DOF : degree of freedom

ref:

• table 10.1 sumer,1997{B}
  • where, B means book

1.1 validation

stationary cylinder no plane boundary

The velocity field of the turbulent very near wake of a circular cylinder

By:Ong, L (Ong, L); Wallace, J (Wallace, J)

1.2 khalak and Williamson,1997, JFS

NEW input variables: Very low m*ξ Q?

• what is the dominant response frequency during excitation
• lock-in region
• A* vs. U_r

exp. U* = U/f_n D, where f_n is the natural frequency of the structure in water

2 setups

• all setups are the same as Khalak and Williamson 1997 except add a plane boundary
• Re(1e3, 1e4)

vibration-system

• low M* (<6)

3 new contribution from guo fei

• flow field properties
• higher Re, others work mostly on laminar (# not great new, lots of work on subcritical flow regime)
• 3D rather than 2D
• non-linearity
• wider G/D

4 english

intermittent {adj}

occurring at irregular intervals; not continuous or steady. "intermittent rain"

Footnotes:

¹

DEFINITION NOT FOUND.

Author: chengpeng

Created: 2019-08-08 四 22:44

Emacs 25.2.2 (Org mode 8.2.10)

Validate

标签：cylinder,Williamson,1997,subjected,flow,Re,plane,subcritical
来源： https://www.cnblogs.com/code-saturne/p/11324375.html

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