Fig. 7
Shows stability boundaries of two liquid interfaces: upper interface \(\log E_{01}^{2}\) and lower interface \(\log E_{03}^{2}\) plotted against wave number \(k\). Stable regions (S1, S3) and unstable regions (U1, U3) are indicated. The non-dimensional parameters held constant: are: \(B = 0.7,\,\,\mu_{3} = 0.0006,\,\,D_{n} = 0.005,\)\(A = 0.7,\,\rho_{3} = 5,\,\rho_{1} = 0.0005,\mu_{1} = 3,\)\(B_{d} = 1.05{,}\)\(\beta_{c} = 0.5{,}\,\,a = 1,\)\(\varepsilon_{1} = {0}.{72},\)\(\varepsilon_{3} = {3}.5\,,\,\,\,P_{e} = 15\) and \(Oh = 2.05\).
