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Reduced navier stokes in mathematica help please 
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#1
Jan713, 10:57 AM

P: 1

ok I am modelling airflow in the upper airway for application i obstructive sleep apnoea, but I have hit a brick wall with mathematica. I have a system of 3 differential equations with boundary conditions, and I need to solve to find 3 unknown functions numerically so that they may be plotted in various graphs.
The equations are as follows: D[a[x]*u[x], x] == 0, u[x] u'[x] == p'[x], p[x]  1 == 2 (1  ((a[x])^(3/2)))  50 (a''[x]). with boundary conditions: u[0] == 0.1, a[0] == 1, a[10] == 1, p[10] == 1. so initially I tried to use NDSolve like so..
thanks in advance a. 


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