Official Answer
Answer
Yayin da aka matsa ruwan magudanar ruwan Crest-to-Crest zuwa tsayayyen tsayinsa, matsakaicin diamita $D_m$ yana ƙaruwa saboda karkatar da raƙuman ruwa. Madaidaicin ƙimar bazara $k = \frac{E b t^3 N^4}{1.23 D_m^3 Z}$ yana ɗaukar diamita akai-akai. A zahiri, ƙarar $D_m$ yana haifar da sakamako mai laushi mara mizani da farko, sannan taurin kai mai ƙarfi ya biyo baya yayin da raƙuman ruwa ke tunkarar ƙaƙƙarfan yanayi. Dole ne injiniyoyi su lissafta wannan ta hanyar amfani da madaidaiciyar diamita $D_{adj} = D_m + (f \cdot \tan(\theta))$ inda $f$ ke karkata kuma $\theta$ shine kusurwar igiyar ruwa. Rashin yin lissafin wannan a daidaitattun bawuloli na sararin samaniya na iya haifar da matsi mara kyau.
