What’s The Difference Between Computational Mechanics And Computational Fluid Mechanics?
Posted by admin on November 25, 2009 under Fluid Mechanics | 
2 Comments to Read
hi….i m in my final year and plannin to do my M.S in computational mechanics…but i came across another group called cfd…whats the difference..?which is a better option?
Blue_Fox said,
Computational mechanics means mechanics of solids, i.e. stress, vibration, and material behavior like creep, plasticity, etc.
CFD means computational fluid dynamics i.e. the motion of liquids and gases.
Modeling the static behavior of fluids is a very simple problem compared with dynamics (unlike the case of solid mechanics) and hence the subject was originally named CFD because of the emphasis on the dynamics modeling..
CFM (computational fluid mechanics) also includes modeling thermal effects (including phase changes from liquid to gas), chemical reactions. e.g. combustion etc, and interaction between fluid and solid objects, e.g. noise propagation from vibrating structures, or the stresses in the hull of a high speed boat caused by the surface waves that it creates when moving.
The latest name for modeling problems which cross the traditional boundaries of different branches of physics or engineering is “multiphysics” (and this is where the most research is going on since “basic” CM and CFD are now fairly mature subjects with reliable and efficient computer software available and widely used.
AK said,
CFD deals with the computations of the air flow in a turbine engine, or the flow around airfoils. CFD is extensively used by aero space engineers. As the name suggests it deals with the computations of fluids.
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