I want to analyse a suspension bridge which is subjected to wind loads. Can anyone specify whether it will be possible to use ANSYS fluent or ANSYS cfx for analysing? If possible, which will be better(fluent or cfx)?
I think its possible using ANSYS CFX. My idea would be to simulate the wind load as air velocity in CFX and determine the pressure distribution due to wind on the bridge. Then map the pressure loads from ANSYS CFX to ANSYS Structural in ANSYS Workbench.
This can be done in ANSYS workbench. But CFX will not be the appropriate here, rather Fluid Solid Interface (FSI) should be considered for the simulation purposes.
Yes Arafat, but without using CFX how will the realistic pressure distribution deterimined? And even for FSI, how will the setup be done without CFX or Fluent?
Thanks, for solving my doubts.Is there any other software package that can model the fluid-structure interaction?
Dear Amit, I think you are working with ANSYS/CFX/FLuent. CFX and Fluent are nothing but the tool. When you consider ANSYS workbench, every thing cover.
For the above problem, wind load on bridge can be considered as solid which will fluctuate, and air can be considered as fluid. So FSI is the ultimate option in this case.
No matter you can use CFX or fluent, all are inside the ANSYS workbench. But , FSI is the only useful case to simulate this problem.
Thank
Dear Majesh
ANSYS workbench is the user friendly package. If you have the access, just go through it..
Thanks
Yes Dear Arafat, FSI is the only way to do that. I think we both have the same idea and you are right that all the tools are covered in ANSYS Workbench.
Dear Mahesh, there is a tutorial example in ANSYS help documentation about 2-way coupling of FSI. The concept of that tutorial is similar to the problem you are looking to solve.
Dear Mahesh, Both fluent and CFX can be used for the simulation. You have work on FSI module. First Find the velocity profile(and thus pressure distribution) for air around the bridge then import the solution of pressure field to the bridge for further simulation.There are good videos of using FSI module in for fin analysis as well
I think you can use any code without any problem and they suppose gave your nearly the same answer if you follow the correct procedures during the simulations. In addition, I think as mentioned by my colleagues the problem is a FSI problem and the structural analysis should be considered.
Check the following reference Please.. it might's assist you in your question … Regards…
http://dspace.mit.edu/bitstream/handle/1721.1/74418/812915230-MIT.pdf;sequence=2
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