Particle response time formula is valid under stokes regime right, meaning particle Reynolds number is 0. But when particle flows under the influence of air flow, its Reynolds no. will never be 0 right. Can we still use this formula. Or am I understanding this wrong, other way round of thinking this formula is initial Reynolds no. of particle should be zero meaning particle should be at rest before coming under the influence of air flow. Please explain. Thanks
Thanks a lot Prof. Wonderful. Reminded of my classes on Two phase flows taught by Prof. SK Dass at IIT Madras. My humble thanks to Prof SK Dass for his very interesting lectures. Same note of Thanks to you. Will be happy if you can introduce audience good books like Colliers, Stephen, Whalley, etc. for additional learning in every lecture of yours on the topic.
Thanks Dr. Kumar Das. The derivation of Shear in Annular is very interesting, I´ve been trying to do it a lot of times to reach Hewitt & Hall Taylor (1970) result. Do you have examples of upward liquid and gas?
Dear Dr. Kimar Das. Could you please inform me what references are used for the lectures? The symbols are a lit bit different from Todreas&Kaziimi (my references). However, they are easy to understand with your explanation, and there is an interesting approach for the models. Thanks for your kindly attention, and congratulations on the excellent lecture.
I am doing a project using Shan and Chen pseudopotential method. I did not use anything to capture the interface separately. But using this method also interface evolves. Can you explain how this happens?
Actually, it does not change significantly. The internal superficial rugosity of the pipes are considered constant throughout their length. e.g. a PVC pipe has around the same rugosity in the middle as in its entrance.