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Question: problem in dsolve

Question:problem in dsolve

mehdi jafari 749 Maple 2018
differential-equation dsolve numeric
January 15 2019
1

i have two ode equations, when try to solve, i face this error
Error, (in dsolve/numeric/bvp/convertsys) unable to convert to an explicit first-order system
any comment or help to solve this? ( or any simplifying comments to solve) . thnx in advance

 

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restart
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A := 4263736263.736263:B := 11868131.86813187:C := 600146.5201465202:hr := 0.3e7:muz := 0.2632654643708247e-5:P:=1000:

1000

 (1)
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ode1 := diff(u(r), r, r)+(diff(u(r), r))/r-u(r)/r^2-B*(diff(w(r), r, r, r)+(diff(w(r), r, r))/r-(diff(w(r), r))/r^2)/A = 0;

diff(diff(u(r), r), r)+(diff(u(r), r))/r-u(r)/r^2-0.2783505155e-2*(diff(diff(diff(w(r), r), r), r))-0.2783505155e-2*(diff(diff(w(r), r), r))/r+0.2783505155e-2*(diff(w(r), r))/r^2 = 0

 (2)
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ode2 := C*(diff(w(r), r, r, r, r))+2*C*(diff(w(r), r, r, r))/r-(C/r^2+muz*hr^2)*(diff(w(r), r, r))+(C/r^3-muz*hr^2/r)*(diff(w(r), r))+muz*hr^2*w(r)/r^2-B*(diff(u(r), r, r, r))-2*B*(diff(u(r), r, r))/r+B*(diff(u(r), r))/r^2-B*u(r)/r^3 = P;

600146.5201465202*(diff(diff(diff(diff(w(r), r), r), r), r))+1200293.040*(diff(diff(diff(w(r), r), r), r))/r-(600146.5201465202/r^2+23693891.80)*(diff(diff(w(r), r), r))+(600146.5201465202/r^3-23693891.80/r)*(diff(w(r), r))+23693891.80*w(r)/r^2-11868131.86813187*(diff(diff(diff(u(r), r), r), r))-23736263.74*(diff(diff(u(r), r), r))/r+11868131.86813187*(diff(u(r), r))/r^2-11868131.86813187*u(r)/r^3 = 1000

 (3)
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ics := w(.2) = 0, (D(w))(.2) = 0, w(1) = 0, (D(w))(1) = 0, u(.2) = 0, u(1) = 0;

w(.2) = 0, (D(w))(.2) = 0, w(1) = 0, (D(w))(1) = 0, u(.2) = 0, u(1) = 0

 (4)
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dsolve({ode1,ode2} union {ics},{w(r),u(r)},numeric)

Error, (in dsolve/numeric/bvp/convertsys) unable to convert to an explicit first-order system

  
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