Dear Olusegun D. Samuel,
from my experiemence I can only confirm it. I didn't do anythink on rhelogy though, but we expanded typical mech.-thermal FEM calculations by combinations with CFD using FLUENT as well as COMSOL. We were able to included the Rotation Speed of a drill during the Drilling process. we are now in the Position to calculated drill-internal fluid supply design measures and compare the effects (flow, cooling, pressure Distribution, turbulences a.s.o.) by experiments which improves the Analysis a lot because of a proces insight we wouldn't have without CFD. We were ignoring chip Formation for simplicity (easier, shorter calculation), but that is not necessary. I can imagine that it would be quite helpful in your case too. Regards, R.Rentsch
For reference: Oezkaya, E., Beer, N., Biermann, D., Experimental studies and CFD simulation of the internal cooling conditions when drilling Inconel 718, International Journal of Machine Tools & Manufacture 108 (2016) 52–65.
Great Scholars,
Thank you all for useful contribution
Dr.O.D. Samuel
An optimal choice of non-Newtonian fluid model concerning accuracy vs. tractability is often far from obvious. A good starting point can be to perform a simulation for a Newtonian (constant viscosity) case first and then assess the deformation rate/stress fields to judge how far shear thinning or transient effects are likely to change the result. And, of course, compare against trustable experimental data where available.
Dear my great Scholars,
I really appreciate your wonderful suggestions.
Contribution from other researchers are welcome.
Regards,
Dr. O.D. O.D. SAMUEL
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