Cultivation? Please Solve This Partial Differential Equation First

Traveling through the world of cultivating immortals, Su Zhe found that the monks here were still relying on "insight" to set fires. As the chief physicist of the 22nd century, he pushed up his glasses: "The energy conversion rate is less than 30%. No dog can practice this fireball technique." As a result, Qingyun Sect's painting style completely went astray. While others fly with swords, he studies supersonic fluid dynamics; While others were asking for elixirs, he purified industrial-grade spiritual liquid on a large scale in the laboratory; Until that day, facing the world-destroying lightning disaster, Su Zhe raised a row of lightning rods and charged the entire mountain with electricity. Su Zhe: "Science makes ascension more cost-effective." Lu Ling'er: "Senior brother, stop bragging, your lightning rod is short-circuited, run away!"