1945 板状液体ジェット収縮・逆転構造の数値解析(S21-8 噴流,後流及びはく離流れの流動解析と応用(8),21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)
詳細
Contraction and inversion of a slab liquid jet occur as a result of surface tension forces. Numerical analysis of contraction and inversion of a slab liquid jet was conducted by the VOF method. Computational results qualitatively agree with the experiment measurements. The contraction length, however, is 20% larger than the experimental value. The discrepancy is considered due to the ignorance of the nozzle. Given H the width of the jet, We the Weber number, and L the contraction length, the contraction number is defined by C=L/(H We^∧0.5). A theoretical value of 1/4 is proposed based upon examinations of the flow field.
