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Heat and Mass Transfer and Air-Water Mixtures
- Aerospace Standard
- AIR1168/2A
- Stabilized
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
Heat transfer is the transport of thermal energy from one point to another. Heat is transferred only under the influence of a temperature gradient or temperature difference. The direction of heat transfer is always from the point at the higher temperature to the point at the lower temperature, in accordance with the second law of thermodynamics. The fundamental modes of heat transfer are conduction, convection, and radiation. Conduction is the net transfer of energy within a fluid or solid occurring by the collisions of molecules, atoms, or electrons. Convection is the transfer of energy resulting from fluid motion. Convection involves the processes of conduction, fluid motion, and mass transfer. Radiation is the transfer of energy from one point to another in the absence of a transporting medium. In practical applications several modes of heat transfer occur simultaneously. For example, aerodynamic heating of a vehicle surface includes convection to the surface, radiation away from the surface, and conduction through the surface structure. Since the three modes of heat transfer obey different laws, a real insight into such a problem can be gained only after they have been studied separately.
Rationale
This document has been determined to contain basic and stable technology which is not dynamic in nature.
Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
TABLE 1 | Shape Factors | |
TABLE 2 | Calculation Sheet | |
TABLE 3 | Location of Transient Temperature Points for Schmidt Plot | |
TABLE 4 | Estimates for Transition Reynolds Numbers | |
TABLE 5 | Values of Diffusion Factors | |
TABLE 6 | Turbulent Flow Factors | |
TABLE 7 | Function f (α ) | |
TABLE 8 | Values of F and Δt | |
TABLE 9 | Surface-Liquid Combinations (Reference 6) | |
Unnamed Dataset 11 |
Issuing Committee
AC-9 Aircraft Environmental Systems Committee
Furthers the advancement of technology related to the research, design, test and utilization of aircraft environmental and anti-icing/deicing systems. Develops and updates standards, recommended practices, and information reports contributing to the quality, economy, and safety of commercial and military aircraft.
Reference
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