• SURYA NARAIN PRASAD

A large number of constitutive equations have been proposed to characterize the relationship between the stress and rate of strain in Newtonian/non Newtonian fluids. A Newtonian fluid is a power-law fluid with a behaviour index (n=1), where the shear stress is directly proportional to the shear rate. These fluids have a constant viscosity, across all the shear rates and include many of the most common fluids, such as water, most aqueous solutions, oil, corn syrup, glycerine, air and other gases. While this holds true for relatively low shear rates, at high rates most oils in reality also behave in a non-Newtonian fashion and thin. Typical examples include oil films in automotive engine shell bearings and to a lesser extent in gear tooth contacts.

Newtonian fluids, Boundary Value, Droplet

"A STUDY ON SURFACE INSTABILITIES IN NEWTONIAN AND NON-NEWTONIAN FLUIDS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.675-680, February-2019, Available :http://www.jetir.org/papers/JETIR1902289.pdf

"A STUDY ON SURFACE INSTABILITIES IN NEWTONIAN AND NON-NEWTONIAN FLUIDS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp675-680, February-2019, Available at : http://www.jetir.org/papers/JETIR1902289.pdf