Jose Ignacio Alderete Wells

• Post By Jose Ignacio Alderete Wells
• 3 months ago
• Post Type Public

I am reconstructing the case of the cyclone separator using the Euler-Euler approach given in this link. Unfortunately, many of the images and tables are corrupted, making the process quite difficult.

I have some specific questions about the Allrun file found here, especially regarding the following fragment:

echo "Modifiing and adding files in/to 0 dir..."

cd 0

rm -rv uniform

cp -v U U.water

mv -v U U.particles

rm -v nut

mv -v epsilon epsilon.water

mv -v k k.water

mv -v p p_rgh

cp -v ../0.euler/nut.particles .

cp -v ../0.euler/nut.water .

cp -v ../0.euler/T.water .

cp -v ../0.euler/T.particles .

cp -v ../0.euler/Theta.particles .

cp -v ../0.euler/alphat.particles .

cp -v ../0.euler/alpha.particles .

cp -v ../0.euler/alphat.water .

cp -v ../0.euler/alpha.water .

cp -v ../0.euler/p .

cd ..

echo "                                     ...done"

1. Why is the p field renamed to p_rgh, considering that p in simpleFoam is in Pressure/density units, and p_rgh is in Pressure units?
2. Why is nut removed and reinitialized when simpleFoam handles it?

Other questions regarding the simulation are:

Which is the drag model more adequated for solid-fluid simulation?

I would also like to know if anyone has the case folder available.

Thank you for your help.