User's Guide for TREETHERM: A 3-D Thermal Model for Single Trees.

Abstract

Energy budget modeling of vegetated surfaces is complicated by the extreme variability that can be encountered in the species that are present. A three dimensional thermal model of trees, TREETHERM, has been developed to understand the thermal properties of trees. The model has been developed for leafed and leafless conditions. This report presents a User's Guide for TREETHERM. Descriptions of the input requirements for the code are presented as well as examples of how to use the code. TREETHERM is a three dimensional thermal code that models a single tree's response to environmental boundary conditions. Written in the C programming language, the model includes heat transfer due to conduction, solar absorption, surface convection due to wind, infrared absorption and surface reradiation. The model allows the user to disable the various boundary conditions in order to perform sensitivity studies. The model also includes an option to allow the shading effects and attenuation effects due to leaves.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1991
Accession Number
ADA240509

Entities

People

  • James R. Jones

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Temperature
  • Cloud Cover
  • Computer Programs
  • Conductivity
  • Coordinate Systems
  • Energy
  • Geometry
  • Grids
  • Heat Energy
  • Infrared Radiation
  • Latitude
  • Longitude
  • Materials
  • Meteorological Data
  • Radiation
  • Three Dimensional

Readers

  • Computational Modeling and Simulation
  • Computer Science.
  • Thermal Physics or Thermal Science.