So in trying to solve for Poiseuille's Law using the continuty eq and Navier-Stokes, the differential EQ becomes DP/dz = some function of R only. The professor says that because DP/dz is ONLY a function of Z, and the left side is ONLY a function of R, the only way they can be equal is if both are constants.(adsbygoogle = window.adsbygoogle || []).push({});

What's the intuition or reasoning behind this?

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# Navier-Stokes and why DP/Dz is constant

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