• D.S.Tomar
• Swapna Rekh Panda
• Sudeep Ashthana
• Jyoti Chauhan

We studied the linear stability of two liquid layers flowing down an inclined rigid surface in presence of insoluble surfactant at GL interface and imposed shear stress also on GL interface for high viscosity ratio (μ_r= 50). The growth rate of unstable LL mode is suppressed in the longwave limit when the value of applied shear stress is increased but the growth rate suddenly increased in high wave limit for the high value of imposed shear stress. It can be applied to produce either stable or unstable configurations as per our requirement. For solving linear governing equation, we used MATLAB for initial guesses and C coding for producing final results or numerical results.

LL mode, growth rate, perturbations, angle, rigid surface, viscosity ratio, Instability, surfactant mode.

"Effect Of Imposed Shear Stress On The Growth Rate Of LL Mode Instabilities", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.779-782, January 2019, Available :http://www.jetir.org/papers/JETIRDY06126.pdf

"Effect Of Imposed Shear Stress On The Growth Rate Of LL Mode Instabilities", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp779-782, January 2019, Available at : http://www.jetir.org/papers/JETIRDY06126.pdf