Core engineering concepts defined with mathematical formulas and diagrams that will support an engineer in courses throughout their student years, as a refresher before certification testing, and as a handy reference throughout a professional career. Precise coverage and easy access makes this a valuable six pages in an immensely critical field of study and application. 6 page laminated guide includes:
Statics: Vectors, Forces, Moments, Equilibrium, Centroids, Distributed Loads, Centers of Mass, Moments of Inertia
Dynamics: Particle Kinematics, Particle Kinetics, Energy & Momentum Methods, Kinetics of Rigid Bodies, Plane Motion, Three Dimensional Kinetics
Fluid Mechanics: Intro, One Dimensional Flows, Steady Incompressible Flow Through Pipes or Conduits, Impulse & Momentum, Multipath Pipelines, Flow in Open Channels, Measurements
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Yes, you can access Engineering Formulas by Beena Ajmera in PDF and/or ePUB format, as well as other popular books in Technology & Engineering & Engineering General. We have over one million books available in our catalogue for you to explore.
, where ρ is the density, Δm is the mass of infinitesimal volume, and ΔV is the volume of infinitesimal object
Specific Weight: Weight of a material per unit volume
γ =
limΔV→0
ΔW
ΔV
, where γ is the specific weight and ΔW is the weight of infinitesimal volume
γ = ρg, where g is the gravitation acceleration
Specific Gravity: The ratio of the specific weight of a material to the specific weight of water; equivalent to the ratio of the density of a material to the density of water
Gs =
γ
γw
=
ρ
ρw
, where γwis the unit weight of water and ρwis the density of water
Density of water is 1000 kg/m3 or 62.4 lbm/ft3
Specific weight of water is 9810 N/m3, or equivalently, 9810 kg/(m2s2) or 62.4 lbf/ft3
Stress: Force per unit area
τ =
limΔA→0
ΔF
ΔA
, where ΔF is the force acting on infinitesimal area, ΔA
Stress can be divided into the normal and tangential components as follows:
τn = −P, where τnis the normal stress component and P is the pressure at which the normal stress component is desired
τt = μ
dv
dy
, where τtis the tangential stress component, dv is the differential of the velocity, and dy is the differential of the distance in the direction normal to the boundary
Absolute DynamicViscosity: Resistance of a fluid to shearing flows
Kinematic Viscosity: Ratio of the dynamic viscosity to the density of the fluid
ν =
μ
ρ
, where μ is the absolute dynamic viscosity
SurfaceTension: Force per unit contact length
σ =
F
L
, where F is the surface force at the interface and L is the length of interface
Capillary Rise: Ability of a liquid to move through narrow spaces without the help of and against external forces such as gravity
Height of capillary rise is given by h =
4σcosβ
γd
, where σ is the surface tension, β is the angle made by the liquid with a wet tube wall, and d is the diameter of the tube in capillary rise
Hydraulic Gradient: Also known as the grade line; an imaginary line above the pipe representing the pressure head at any point by the vertical distance between the pipe axis and the location of this line
Energy Line: Also known as the total head line; sum of the total head above a horizontal difference
The difference between the hydraulic gradient and the energy line is the velocity head
