P provost1 New member Joined Jul 8, 2019 Messages 1 Jul 8, 2019 #1 I started with this equation and have split it into the following coupled equations: dT/dx=z dz/dx= hp/kAc - (T-Ta) T and x are the unknown variables I need help transferring this into excel using Eulers method and/or 4th order Runge kutta Thnaks for any help

I started with this equation and have split it into the following coupled equations: dT/dx=z dz/dx= hp/kAc - (T-Ta) T and x are the unknown variables I need help transferring this into excel using Eulers method and/or 4th order Runge kutta Thnaks for any help

S Subhotosh Khan Super Moderator Staff member Joined Jun 18, 2007 Messages 21,546 Jul 8, 2019 #2 provost1 said: View attachment 12802 I started with this equation and have split it into the following coupled equations: dT/dx=z dz/dx= hp/kAc - (T-Ta) T and x are the unknown variables I need help transferring this into excel using Eulers method and/or 4th order Runge kutta Thnaks for any help Click to expand... Have you decided about the domain of solution? Have you decided on a step-size?

provost1 said: View attachment 12802 I started with this equation and have split it into the following coupled equations: dT/dx=z dz/dx= hp/kAc - (T-Ta) T and x are the unknown variables I need help transferring this into excel using Eulers method and/or 4th order Runge kutta Thnaks for any help Click to expand... Have you decided about the domain of solution? Have you decided on a step-size?

H HallsofIvy Elite Member Joined Jan 27, 2012 Messages 6,406 Jul 9, 2019 #3 You don't have a problem you can solve using Euler's method, Runge-Kutta, or any numerical method because you don't have an initial condition from which to start!

You don't have a problem you can solve using Euler's method, Runge-Kutta, or any numerical method because you don't have an initial condition from which to start!