Popular in Course
Popular in Civil Engineering
This 1 page Class Notes was uploaded by Ara Hartmann on Tuesday October 13, 2015. The Class Notes belongs to CE251 at Lafayette College taught by DavidBrandes in Fall. Since its upload, it has received 32 views. For similar materials see /class/222309/ce251-lafayette-college in Civil Engineering at Lafayette College.
Reviews for FluidMechanics
Report this Material
What is Karma?
Karma is the currency of StudySoup.
Date Created: 10/13/15
DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING LAFAYETTE COLLEGE Abbreviations and Symbols CE 251 Spring 2004 r uid shear stress shear force over a shear area FLz p uid pressure compressive force over an area pounds per square inch psi Pascal Pa Nmz FLz u internal energy per unit mass Jkg FL M W work Joules FL p density ML3 pw 1000 kgm3 l gcm3 194 slugsft3 g acceleration of gravity 981 ms2 322 fts2 y speci c weight FL3 pg yw 98 kNm3 624 lbsft3 SG speci c gravity pxpw yxyw u dynamic Viscosity also called absolute Viscosity FtL2 uw l X 10393 Nsm2 21 x 103951b sft2 200 or 70F v kinematic Viscosity Lzt Mp vw l X 10396 mzs 11 X 10395 ftzs 20C or 70F EV bulk modulus of elasticity FLZ Em 2170500 kNmz 318000 psi 039 surface tension FL 01M 0073 Nm 0005 lbft R speci c gas constant Rmw Rmr 287 Jkg K FLMT LztzT c speci c heat heat required to raise the temp of a unit mass by one degree Jkg K k adiabatic constant ratio of c at const pressure to c at constant volume op0V km 14 r radial distance from a pipe centerline L y perpendicular distance from a ow boundary L 11 uid head L a vertical depth of uid pressure is often converted to an equivalent height of uid using 11 py Z vertical height above some datum L 11L head loss due to friction and turbulence L V average velocity through a crosssection of ow Lt A area L2 Q volumetric ow rate VA L3t V velocity at a speci c point in the ow Lt V friction velocityquot an important parameter in boundary layer ow not a true velocity Lt Re Reynolds number a dimensionless force ratio important in pipe ow inertialViscous Fr Froude number another dimensionless force ratio important in gravity ow inertial gravity Note dimensions are in brackets F force M mass L length t time T temp