ME 242 Chapter 13
... Mathcad does not evaluate cross products symbolically, so the LEFT and RIGHT sides of the above equation are listed below. Equaling the i- and jterms yields two equations for the unknowns wOA and vCOLL ...
... Mathcad does not evaluate cross products symbolically, so the LEFT and RIGHT sides of the above equation are listed below. Equaling the i- and jterms yields two equations for the unknowns wOA and vCOLL ...
work
... Work: The energy transfer associated with a force acting through a distance. A rising piston, a rotating shaft, and an electric wire crossing the system boundaries are all associated with work interactions Formal sign convention: Heat transfer to a system and work done by a system are positive; he ...
... Work: The energy transfer associated with a force acting through a distance. A rising piston, a rotating shaft, and an electric wire crossing the system boundaries are all associated with work interactions Formal sign convention: Heat transfer to a system and work done by a system are positive; he ...
Ch 20 Thermodynamics
... Enthalpy=H=E+PV,E=internal energy, P=pressure, V=volume. Entropy: S, A measure of molecular randomness or disorder. Thermodynamic function that describes number of arrangements that are available to a system existing in a given state. Probability of occurrence of a particular arrangement(state ...
... Enthalpy=H=E+PV,E=internal energy, P=pressure, V=volume. Entropy: S, A measure of molecular randomness or disorder. Thermodynamic function that describes number of arrangements that are available to a system existing in a given state. Probability of occurrence of a particular arrangement(state ...
The third law
... A young French engineer Sadi Carnot (1796–1832) analysing the constraints on the efficiency of a steam engine found that heat was a kind of imponderable fluid that, as it flowed from hot to cold, was able to do work, just as water flowing down a gradient can turn a water mill that the efficiency of ...
... A young French engineer Sadi Carnot (1796–1832) analysing the constraints on the efficiency of a steam engine found that heat was a kind of imponderable fluid that, as it flowed from hot to cold, was able to do work, just as water flowing down a gradient can turn a water mill that the efficiency of ...
chapter 5 energy, matter, and momentum exchanges near the surface
... surface boundary layer (SBL), where the turbulent fluxes and momentum flux are generally considered to be constant with height, but not over time o The transition layer, where vertical transfer and friction remain important properties, extends from the top of the SBL to approximately 500 – 1000 m ab ...
... surface boundary layer (SBL), where the turbulent fluxes and momentum flux are generally considered to be constant with height, but not over time o The transition layer, where vertical transfer and friction remain important properties, extends from the top of the SBL to approximately 500 – 1000 m ab ...
Heat transfer physics
Heat transfer physics describes the kinetics of energy storage, transport, and transformation by principal energy carriers: phonons (lattice vibration waves), electrons, fluid particles, and photons. Heat is energy stored in temperature-dependent motion of particles including electrons, atomic nuclei, individual atoms, and molecules. Heat is transferred to and from matter by the principal energy carriers. The state of energy stored within matter, or transported by the carriers, is described by a combination of classical and quantum statistical mechanics. The energy is also transformed (converted) among various carriers.The heat transfer processes (or kinetics) are governed by the rates at which various related physical phenomena occur, such as (for example) the rate of particle collisions in classical mechanics. These various states and kinetics determine the heat transfer, i.e., the net rate of energy storage or transport. Governing these process from the atomic level (atom or molecule length scale) to macroscale are the laws of thermodynamics, including conservation of energy.