翼車附近の流動について(第1報)

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In this report, which was read at the Tokyo Meeting May 1944,the author emphasizes the use of the irratational condition to obtain the stream lines on the meridian section of runners (C_m lines). In curvilinear rectangular co-ordinates, the irratational condition gives : 2ε_m=∂(rc_θ)/r∂n=0 (a) 2ε_n=∂c_m/(r∂θ)-1/r ∂(rc_θ)/(∂m)=0 (b) 2ε_θ=±c_m/l-∂c_m/(∂n)=0 (c) where c=absolute velocity, ε=vorticity, r=radial distance, l=rad. of curveture of c_m line, m=direction of c_m line, n=normal to c_m line, θ=direction of runner rotation, suffixes m, n, θ mean m, n, θ components. c_m lines can be drawn from (a) (c) and these lines deatermine the distribution of velocity, dead water spaces etc., which are of great imporatance in desgning runners and presuming characteristics of hydraulic machines. The author gives also some examples and fundamental relations on potential flow with c_θ.
一般社団法人日本機械学会の論文
1951-10-20