Table 2-1. Similitude ratios. 



Qiaracteristic 



Dimension 



Froude No. 



Reynolds No. 



Geometric 









Length 



L 



L, 



Lr 



Area 



l2 



(L,)^ 



(Lr)^ 



Volume 



l3 



(L,)3 



(L.)^ 



Kinematic 









Time 



T 



a^rb'J' 



(L2pM-'), 



Velocity 



LT-1 



(L.p-);« 



(ML-lp-1), 



Acceleration 



LT-2 



(7P-I)r 



(M2L-3p-2)^ 



Discharge 



l3t-1 



(L5/2^1/2p-l/2)^ 



(LMp-*\ 



Kinematic viscosity 



l2t1 



(L3/2^1/2p-l/2)^ 



Qjip-^r 



Dynamic 









Mass 



M 



(L^P\ 



(L^P\ 



Force 



MLT^ 



(L^T), 



(j"V^)r 



Density 



ML-3 



^r 



^r 



Specific weight 



ML-2T-2 



T'r 



(ju2L-3p-l)^ 



Dynamic viscosity 



ML-It-1 



(L3/2pl/2<yl/2)^ 



^r 



Surface tension 



MT-2 



(Lh\ 



(M2L-lp-l)^ 



Volume elasticity 



ML-^T-2 



(L7)r 



(M2L-2p-l)^ 



Pressure intensity 



ML-It-2 



(L7)r 



(Ax2L-2p-l)^ 



Momentum and impulse 



MLT-1 



(L7/2pl/2^1/2)^ 



(L2m>, 



Energy and work 



ML^T-^ 



(lS), 



(Lfi^p-^, 



Power 



ML^T-^ 



(L7/2-y3/2p-l/2)^ 



(ji^L-^p-\ 



29 



