Accession Number : AD0862255

Title :   Convection in a Nearly Isothermal Atmosphere.

Descriptive Note : Technical rept.,

Corporate Author : FLORIDA STATE UNIV TALLAHASSEE

Personal Author(s) : Barcilon, Albert

Report Date : 1969

Pagination or Media Count : 37

Abstract : The onset of thermal convection is studied in a fluid layer having a basic density stratification that decreases almost exponentially with height. The coefficients of viscosity and thermal conductivity are assumed to be constant and a stratification parameter which measures the ratio of the depth of the fluid layer to the scale height is introduced. Critical Rayleigh numbers and wave-lengths are computed for various values of the stratification parameter. Finally, the problems associated with convection in a rapidly rotating centrifuge with its walls differentially heated are discussed. (Author)

Descriptors :   (*PLANETARY ATMOSPHERES, CONVECTION(HEAT TRANSFER)), (*ATMOSPHERE MODELS, CENTRIFUGES), ATMOSPHERIC MOTION, ATMOSPHERIC TEMPERATURE, RAYLEIGH WAVES, FREQUENCY, DENSITY, STABILITY, VORTICES, MOLECULAR PROPERTIES, COMPRESSIBLE FLOW, ADIABATIC GAS FLOW, DIFFERENTIAL THERMAL ANALYSIS, EQUATIONS OF STATE, BOUNDARY VALUE PROBLEMS, DIFFUSION.

Subject Categories : Astrophysics
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE