§2量纲分析示例 1.波浪对航船的阻力阻力f 速度v,尺寸,浸没面积s,海水密度p,重力加速度g 0 op(g, I,p, v,S, f)=0 []=lx, [g]=LT2,=L,[p]=L3M [V]=LT-,[s]=L2, [f]=LMT-2 11-3121( A C A=001001(M 20010-2( (g)()(p)(v)(s)() f(1, 92,.m)=0(g, 1, p, v, ,f=0 rank a=r rank a=3 Ay=0有mr个基本解Ay=0有mr=3个基本解 y.=(sy23…3my/y=(-12-1/2.010,0)1 y=(0,-2001 s=1,2,,mr y=(-1,-3-10.0.1) m-r个无量纲量 z。=1lq g p" $ $ Q L D M L LM $ ### LM Q P u /, 7 7 7 $ 0 & &,0& &,0 0 & $ $$%$ $%& P M \ V M VM & ###