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23 Cards in this Set
- Front
- Back
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water bond type
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covalent bond
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bond linking water molecules
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hydrogen bond
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specific gravity =
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weight of material/weight of equivalent volume of water
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greater effect on water density, temp or pressure?
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temp
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typical surface tension near earths surface
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.075
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shear stress in terms of viscosity (u)
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tao=u*dv/dx
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fluid compressibility (B)=
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-(dV/V)/dp
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thermal expansivity of water (alpha)=
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(dV/V)/DT
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Q =
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-KAdh/dx=qA
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q=
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Q/A=-kdh/dx=v*effective porosity
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K vs. k?
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K-Hydraulic conductivity
k-permeability |
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3 works terms required to move water and their equations/what they equal
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elevation-W=mgz
kinetic energy-W=mvsquared/2 pressure change-W=mdp/rho W1+W2+W3=fluid potential |
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fluid potential=
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head*gravity
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head=
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elevation head+p/(rho*g)
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Transmissivity (T) =
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Kb in confined aquifers, Kh in unconfined aquifers
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Storativity (S) =
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Vwater/(A(dh)) or b*rho*g(alpha+n*beta) in confined aquifer
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Reynolds number equation and significance
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rho*V*d/viscosity between 1-10=laminar, higher=turbulent
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Thiem Equation
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Q=2pi*r*T*dh/dr
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thiem equation for confined aquifer
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h2-h1=Q/(2piT)ln(r2/r1)
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Theis equation
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s=Q/(4piT)*W(u)
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in theis equation, u equals
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rsquared*S/4tT
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specific storage equals
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S/b
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snow's law
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k=N*bcubed/12, where N equals number of fractures per unit thickness and b equals fracture width
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