吉林大学 地下水动力学简述题 2011-12.pdf

1. 2 2. 3. Porosity n n=Vv/V Effective pores Effective Porosity 1 n n =V /V e e e Dead-end pores 4. seepage flow flow domain 5. REVRepresentative Elementary Volume REV (1) (2) QhpR REV (1) nTµ (2) 6. H − H Q KAJ KA 1 2 L Q υ KJ A QA m3/d volumetric flow rate. Km/d 2 A m2 cross-sectional area of flow. H H m 1 2 L—— m JJ = (H -H )/L 1 2 7. Re1-10 Re10-100 Re100 J0 J J0 8. υ K(hydraulic conductivity) V=KI I=1 =KK m/dcm/s 1-1 K(cm/s) 10-2 10-3 10-6 10-7 K(m/d) 8.64 0.864 0.000864 0.0000864 9. tgθ1 K 1 tgθ2 K 2 K =K θ θ 1 2 1 2 2K K K K 0 θ 0θ 0 1 2 1 2 1 2 3 3K K K K 1 2 1 2 θ1 90 θ2 90 4 10. q= -