flow around vibrating cylinder

[gsunil]

can any one explain how to analyse about flow around vibrating cylinder in fluid at rest,physically how it forms secondary steady flow

 

[hacksaw]

very complex problem. it depends on the reynolds number (amoung other factors), whether the cylinder is perfectly immobile and the flexibility of the cylinder.

their are a number of web-site that deal with the phenomena and even have movies of the interaction (experiment and computer simulations).

 

[gsunil]

thanks for your reply ;
can u tell me about the sites about

flow around harmonically oscillating cylinder so that i can

find explanation about the flow field at low vibrational

reynold number

 

[hacksaw]

do a search on vortex shedding and or flow induced vibration

 

[gsunil]

sorry to trouble u i did search but i could not find it on net
can u tell me more clearly

 

[hacksaw]

on google there are 19,300 hits on the subject, the rest is effort

 

[DMAB]

For agitator in flathead vessels, we are considering using ASTM A108 material. Agitator shaft is used for low speed and low torque service. Can any one comment the suitability of this material. If this is not appropriate material, then suggest a suitable material.