changes.mady.by.user Arthur Aslanyan (Nafta College)
Saved on Mar 23, 2019
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p(r) = p_i +- \frac{q_t}{2V \pi, \sigma}phi \, \ln \frac{r}{r_e} = p(r_w)c_t} \, t + \frac{q_t}{2 4\pi \sigma} \,bigg[ 2 \ln \frac{r}{r_e} - \frac{r^2}{r_w}e^2} \bigg] , \quad r_{wf} < r \leq r_e
p_{wf} = p_i - \frac{q_t}{2 \pi \sigma} \, \bigg[ S + \ln \frac{r_e}{r_w} \bigg]
