u1[x_,h_,a_,Pe_,Lb_,Nt_,Nb_,K_,Le_]=0.` +(E^(a-x))+1.` ((2.718281828459045`)^(2 a)) (E^(0.` -1.` a-x)) h-0.5` (E^(0.` +1.` a-x)) h-1.` ((2.718281828459045`)^(2 a)) (E^(-1.` a-1.` x)) h+0.5` (E^(1.` a-1.` x)) h-0.0625` (E^(0.` +1.` a-x)) (h^2)+0.0625` (E^(1.` a-1.` x)) (h^2)-1.2999999999999998` (E^(2.` a-2.` x)) h Lb-2.6` ((2.718281828459045`)^(2 a)) (E^(0.` -1.` a-x)) h Lb+1.3000000000000003` (E^(0.` +1.` a-x)) h Lb+1.2999999999999998` (E^(0.` +2.` a-x)) h Lb+2.6` ((2.718281828459045`)^(2 a)) (E^(-1.` a-1.` x)) h Lb-1.3000000000000003` (E^(1.` a-1.` x)) h Lb+0.025709527252775033` (E^(3.` a-3.` x)) (h^2) Lb-0.7879083096460964` (E^(2.` a-2.` x)) (h^2) Lb+0.1371174786814669` a (E^(2.` a-2.` x)) (h^2) Lb-0.06855873934077751` (E^(3.` a-2.` x)) (h^2) Lb+0.6254083096460736` (E^(0.` +2.` a-x)) (h^2) Lb-0.1371174786814669` a (E^(0.` +2.` a-x)) (h^2) Lb+0.04284921208800248` (E^(0.` +3.` a-x)) (h^2) Lb+0.16250000000002274` (E^(2.` a-1.` x)) (h^2) Lb+1.6900000000000002` ((2.718281828459045`)^(2 a)) (E^(0.` -1.` a-x)) h (Lb^2)-1.6900000000000002` ((2.718281828459045`)^(2 a)) (E^(-1.` a-1.` x)) h (Lb^2)+0.1584374999999998` (E^(3.` a-3.` x)) (h^2) (Lb^2)+0.5633333333325655` (E^(2.` a-2.` x)) (h^2) (Lb^2)-0.42249999999996457` (E^(3.` a-2.` x)) (h^2) (Lb^2)-0.42249999999999943` (E^(0.` +1.` a-x)) (h^2) (Lb^2)-0.14083333333255188` (E^(0.` +2.` a-x)) (h^2) (Lb^2)+0.2640624999999648` (E^(0.` +3.` a-x)) (h^2) (Lb^2)+0.42249999999999943` (E^(1.` a-1.` x)) (h^2) (Lb^2)-0.42250000000001364` (E^(2.` a-1.` x)) (h^2) (Lb^2)-4.` (E^(2.` a-2.` x)) h Pe+4.` (E^(0.` +2.` a-x)) h Pe-6.111111111110201` (E^(2.` a-2.` x)) (h^2) Pe+5.611111111110201` (E^(0.` +2.` a-x)) (h^2) Pe+0.5` (E^(2.` a-1.` x)) (h^2) Pe+1.1781249999999979` (E^(3.` a-3.` x)) (h^2) Lb Pe+1.1555555555555375` (E^(2.` a-2.` x)) (h^2) Lb Pe-2.5999999999991177` (E^(3.` a-2.` x)) (h^2) Lb Pe+0.1444444444441897` (E^(0.` +2.` a-x)) (h^2) Lb Pe+1.4218749999991198` (E^(0.` +3.` a-x)) (h^2) Lb Pe-1.2999999999997272` (E^(2.` a-1.` x)) (h^2) Lb Pe-0.5555555555555556` (E^(2.` a-2.` x)) (h^2) Le Pe+0.5555555555555556` (E^(0.` +2.` a-x)) (h^2) Le Pe-0.2777777777777778` (E^(2.` a-2.` x)) (h^2) K Le Pe+0.2777777777777778` (E^(0.` +2.` a-x)) (h^2) K Le Pe+((0.40740740740740744` (E^(2.` a-2.` x)) (h^2) Nt Pe)/Nb)-((0.40740740740740744` (E^(0.` +2.` a-x)) (h^2) Nt Pe)/Nb)+2.` (E^(3.` a-3.` x)) (h^2) (Pe^2)-4.` (E^(3.` a-2.` x)) (h^2) (Pe^2)+2.` (E^(0.` +3.` a-x)) (h^2) (Pe^2)+2.` ((2.718281828459045`)^a) (E^(0.` -1.` x)) h x-1.` (E^(1.` a-1.` x)) h x+0.125` (E^(1.` a-1.` x)) (h^2) x-2.6` ((2.718281828459045`)^a) (E^(0.` -1.` x)) h Lb x-0.9502106019050227` (E^(2.` a-2.` x)) (h^2) Lb x+0.1028381090111006` a (E^(2.` a-2.` x)) (h^2) Lb x-6.816769371198461`*^-14 (E^(1.` a-1.` x)) (h^2) Lb x+0.3250000000000043` (E^(2.` a-1.` x)) (h^2) Lb x+0.8450000000000136` (E^(2.` a-2.` x)) (h^2) (Lb^2) x+0.8449999999999989` (E^(1.` a-1.` x)) (h^2) (Lb^2) x-0.8449999999999999` (E^(2.` a-1.` x)) (h^2) (Lb^2) x-4.` (E^(2.` a-2.` x)) h Pe x-7.333333333333332` (E^(2.` a-2.` x)) (h^2) Pe x+1.` (E^(2.` a-1.` x)) (h^2) Pe x+1.1375000000000006` (E^(3.` a-3.` x)) (h^2) Lb Pe x+3.4666666666668062` (E^(2.` a-2.` x)) (h^2) Lb Pe x-1.3000000000000473` (E^(3.` a-2.` x)) (h^2) Lb Pe x-2.6` (E^(2.` a-1.` x)) (h^2) Lb Pe x-0.6666666666666666` (E^(2.` a-2.` x)) (h^2) Le Pe x-0.3333333333333333` (E^(2.` a-2.` x)) (h^2) K Le Pe x+((0.22222222222222232` (E^(2.` a-2.` x)) (h^2) Nt Pe x)/Nb)+4.` (E^(3.` a-3.` x)) (h^2) (Pe^2) x-4.` (E^(3.` a-2.` x)) (h^2) (Pe^2) x-1.` (E^(1.` a-1.` x)) h (x^2)+0.625` (E^(1.` a-1.` x)) (h^2) (x^2)+0.5814412606592672` (E^(2.` a-2.` x)) (h^2) Lb (x^2)-1.3000000000000003` (E^(1.` a-1.` x)) (h^2) Lb (x^2)-0.325` (E^(2.` a-1.` x)) (h^2) Lb (x^2)+0.8449999999999999` (E^(1.` a-1.` x)) (h^2) (Lb^2) (x^2)-4.` (E^(2.` a-2.` x)) (h^2) Pe (x^2)-1.` (E^(2.` a-1.` x)) (h^2) Pe (x^2)+2.5999999999999996` (E^(2.` a-2.` x)) (h^2) Lb Pe (x^2)-1.` (E^(2.` a-2.` x)) (h^2) Le Pe (x^2)-0.5` (E^(2.` a-2.` x)) (h^2) K Le Pe (x^2)-((0.6666666666666667` (E^(2.` a-2.` x)) (h^2) Nt Pe (x^2))/Nb)+2.` (E^(3.` a-3.` x)) (h^2) (Pe^2) (x^2)-0.7499999999999998` (E^(1.` a-1.` x)) (h^2) (x^3)+0.65` (E^(1.` a-1.` x)) (h^2) Lb (x^3)+1.9999999999999998` (E^(2.` a-2.` x)) (h^2) Pe (x^3)+((1.` (E^(2.` a-2.` x)) (h^2) Nt Pe (x^3))/Nb)+0.125` (E^(1.` a-1.` x)) (h^2) (x^4);
u2[x_,h_,a_,Pe_,Lb_,Nt_,Nb_,K_,Le_]=0.` +(E^(a-x))+1.` ((2.718281828459045`)^(2 a)) (E^(0.` -1.` a-x)) h-0.5` (E^(0.` +1.` a-x)) h-1.` ((2.718281828459045`)^(2 a)) (E^(-1.` a-1.` x)) h+0.5` (E^(1.` a-1.` x)) h-0.0625` (E^(0.` +1.` a-x)) (h^2)+0.0625` (E^(1.` a-1.` x)) (h^2)-1.2999999999999998` (E^(2.` a-2.` x)) h Lb-2.6` ((2.718281828459045`)^(2 a)) (E^(0.` -1.` a-x)) h Lb+1.3000000000000003` (E^(0.` +1.` a-x)) h Lb+1.2999999999999998` (E^(0.` +2.` a-x)) h Lb+2.6` ((2.718281828459045`)^(2 a)) (E^(-1.` a-1.` x)) h Lb-1.3000000000000003` (E^(1.` a-1.` x)) h Lb+0.024478622214684442` (E^(3.` a-3.` x)) (h^2) Lb-0.7806140575688028` (E^(2.` a-2.` x)) (h^2) Lb+0.13055265181164502` a (E^(2.` a-2.` x)) (h^2) Lb-0.06527632590583579` (E^(3.` a-2.` x)) (h^2) Lb+0.61811405756878` (E^(0.` +2.` a-x)) (h^2) Lb-0.13055265181164502` a (E^(0.` +2.` a-x)) (h^2) Lb+0.04079770369115135` (E^(0.` +3.` a-x)) (h^2) Lb+0.16250000000002274` (E^(2.` a-1.` x)) (h^2) Lb+1.6900000000000002` ((2.718281828459045`)^(2 a)) (E^(0.` -1.` a-x)) h (Lb^2)-1.6900000000000002` ((2.718281828459045`)^(2 a)) (E^(-1.` a-1.` x)) h (Lb^2)+0.1584374999999998` (E^(3.` a-3.` x)) (h^2) (Lb^2)+0.5633333333325655` (E^(2.` a-2.` x)) (h^2) (Lb^2)-0.42249999999996457` (E^(3.` a-2.` x)) (h^2) (Lb^2)-0.42249999999999943` (E^(0.` +1.` a-x)) (h^2) (Lb^2)-0.14083333333255188` (E^(0.` +2.` a-x)) (h^2) (Lb^2)+0.2640624999999648` (E^(0.` +3.` a-x)) (h^2) (Lb^2)+0.42249999999999943` (E^(1.` a-1.` x)) (h^2) (Lb^2)-0.42250000000001364` (E^(2.` a-1.` x)) (h^2) (Lb^2)-4.` (E^(2.` a-2.` x)) h Pe+4.` (E^(0.` +2.` a-x)) h Pe-6.111111111110201` (E^(2.` a-2.` x)) (h^2) Pe+5.611111111110201` (E^(0.` +2.` a-x)) (h^2) Pe+0.5` (E^(2.` a-1.` x)) (h^2) Pe+1.1781249999999979` (E^(3.` a-3.` x)) (h^2) Lb Pe+1.1555555555555375` (E^(2.` a-2.` x)) (h^2) Lb Pe-2.5999999999991177` (E^(3.` a-2.` x)) (h^2) Lb Pe+0.1444444444441897` (E^(0.` +2.` a-x)) (h^2) Lb Pe+1.4218749999991198` (E^(0.` +3.` a-x)) (h^2) Lb Pe-1.2999999999997272` (E^(2.` a-1.` x)) (h^2) Lb Pe-0.5555555555555556` (E^(2.` a-2.` x)) (h^2) Le Pe+0.5555555555555556` (E^(0.` +2.` a-x)) (h^2) Le Pe-0.2777777777777778` (E^(2.` a-2.` x)) (h^2) K Le Pe+0.2777777777777778` (E^(0.` +2.` a-x)) (h^2) K Le Pe+((0.40740740740740744` (E^(2.` a-2.` x)) (h^2) Nt Pe)/Nb)-((0.40740740740740744` (E^(0.` +2.` a-x)) (h^2) Nt Pe)/Nb)+2.` (E^(3.` a-3.` x)) (h^2) (Pe^2)-4.` (E^(3.` a-2.` x)) (h^2) (Pe^2)+2.` (E^(0.` +3.` a-x)) (h^2) (Pe^2)+2.` ((2.718281828459045`)^a) (E^(0.` -1.` x)) h x-1.` (E^(1.` a-1.` x)) h x+0.125` (E^(1.` a-1.` x)) (h^2) x-2.6` ((2.718281828459045`)^a) (E^(0.` -1.` x)) h Lb x-0.9430987061292542` (E^(2.` a-2.` x)) (h^2) Lb x+0.09791448885873238` a (E^(2.` a-2.` x)) (h^2) Lb x-6.816769371198461`*^-14 (E^(1.` a-1.` x)) (h^2) Lb x+0.3250000000000043` (E^(2.` a-1.` x)) (h^2) Lb x+0.8450000000000136` (E^(2.` a-2.` x)) (h^2) (Lb^2) x+0.8449999999999989` (E^(1.` a-1.` x)) (h^2) (Lb^2) x-0.8449999999999999` (E^(2.` a-1.` x)) (h^2) (Lb^2) x-4.` (E^(2.` a-2.` x)) h Pe x-7.333333333333332` (E^(2.` a-2.` x)) (h^2) Pe x+1.` (E^(2.` a-1.` x)) (h^2) Pe x+1.1375000000000006` (E^(3.` a-3.` x)) (h^2) Lb Pe x+3.4666666666668062` (E^(2.` a-2.` x)) (h^2) Lb Pe x-1.3000000000000473` (E^(3.` a-2.` x)) (h^2) Lb Pe x-2.6` (E^(2.` a-1.` x)) (h^2) Lb Pe x-0.6666666666666666` (E^(2.` a-2.` x)) (h^2) Le Pe x-0.3333333333333333` (E^(2.` a-2.` x)) (h^2) K Le Pe x+((0.22222222222222232` (E^(2.` a-2.` x)) (h^2) Nt Pe x)/Nb)+4.` (E^(3.` a-3.` x)) (h^2) (Pe^2) x-4.` (E^(3.` a-2.` x)) (h^2) (Pe^2) x-1.` (E^(1.` a-1.` x)) h (x^2)+0.625` (E^(1.` a-1.` x)) (h^2) (x^2)+0.5847236740941746` (E^(2.` a-2.` x)) (h^2) Lb (x^2)-1.3000000000000003` (E^(1.` a-1.` x)) (h^2) Lb (x^2)-0.325` (E^(2.` a-1.` x)) (h^2) Lb (x^2)+0.8449999999999999` (E^(1.` a-1.` x)) (h^2) (Lb^2) (x^2)-4.` (E^(2.` a-2.` x)) (h^2) Pe (x^2)-1.` (E^(2.` a-1.` x)) (h^2) Pe (x^2)+2.5999999999999996` (E^(2.` a-2.` x)) (h^2) Lb Pe (x^2)-1.` (E^(2.` a-2.` x)) (h^2) Le Pe (x^2)-0.5` (E^(2.` a-2.` x)) (h^2) K Le Pe (x^2)-((0.6666666666666667` (E^(2.` a-2.` x)) (h^2) Nt Pe (x^2))/Nb)+2.` (E^(3.` a-3.` x)) (h^2) (Pe^2) (x^2)-0.7499999999999998` (E^(1.` a-1.` x)) (h^2) (x^3)+0.65` (E^(1.` a-1.` x)) (h^2) Lb (x^3)+1.9999999999999998` (E^(2.` a-2.` x)) (h^2) Pe (x^3)+((1.` (E^(2.` a-2.` x)) (h^2) Nt Pe (x^3))/Nb)+0.125` (E^(1.` a-1.` x)) (h^2) (x^4);

<<"PlotLegends`"
w1=Plot[{u1[x,-1.1,0.02,.1, 0.4,0.1,0.1,0.1,0.1],u1[x,-1.1,0.02,0.1, 0.3,0.1,0.1,0.1,0.1],u1[x,-1.1,0.02,0.1, 0.2,0.1,0.1,0.1,0.1]},{x,0,12},PlotRange->All,BaseStyle->{FontFamily->"Times",FontSize->24},AxesOrigin->{0,0},
PlotStyle->{{Thickness[0.003],Dashing[{0.001}],Red},{Thickness[0.003],Dashing[{0.001}],Magenta},{Thickness[0.003],Dashing[{0.001}],Black}}];
w2=Plot[{u2[x,-1.1,0.02,.1, 0.37,0.1,0.1,0.1,0.1],u2[x,-1.1,0.02,0.1, 0.27,0.1,0.1,0.1,0.1],u2[x,-1.1,0.02,0.1, 0.17,0.1,0.1,0.1,0.1]},{x,0,12},PlotRange->All,BaseStyle->{FontFamily->"Times",FontSize->24},AxesOrigin->{0,0},
PlotStyle->{{Thickness[0.003],Dashing[{0.01}],Red},{Thickness[0.003],Dashing[{0.01}],Magenta},{Thickness[0.003],Dashing[{0.01}],Black}}];
Show[{w1,w2},PlotRange->All,Frame->True,FrameLabel->{η,"ξ(η)"},Axes->{False,True}]
h_,a_,Pe_,Lb_,Nt_,Nb_,K_,Le_