Modeling the field of a passive scalar in a nonisothermal turbulent plane gas jet
The problem of the distribution of thermal characteristics in a plane nonisothermal turbulent gas jet in the case of large Reynolds numbers and a small temperature difference, allowing heat to be regarded as a passive impurity, is solved in the range of jet cross sections 20-100 caliber by a second-order correlational model of turbulence and an effective numerical algorithm. Analysis of the results show that the model allows computational data in good agreement with experiment to be obtained in the range of jet cross section 20-100 diameters. The relative error in determining the maximum values of the functions is 3-10% for the dynamic characteristics while the mean temperature and its mean square pulsations are determined with an accuracy of 5-10%; the corresponding figures for the thermal characteristics are 5-15% and 5-10%.
- Research Organization:
- A.V. Lykov Institute of Heat and Mass Transfer (USSR)
- OSTI ID:
- 6003266
- Journal Information:
- J. Eng. Phys. (Engl. Transl.); (United States), Vol. 54:3; Other Information: Translated from Inzh. Fiz. Zh.; 54: No. 3, 387-393 (Mar 1988)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GAS FLOW
FLOW MODELS
JETS
THERMODYNAMIC PROPERTIES
TURBULENT FLOW
ALGORITHMS
CONTINUITY EQUATIONS
CORRELATIONS
DATA COVARIANCES
HEAT TRANSFER
KINETIC ENERGY
NONLINEAR PROBLEMS
NOZZLES
NUMERICAL SOLUTION
OPTIMIZATION
PULSATIONS
REYNOLDS NUMBER
SCALAR FIELDS
SHEAR
STRESSES
TEMPERATURE DISTRIBUTION
DIFFERENTIAL EQUATIONS
ENERGY
ENERGY TRANSFER
EQUATIONS
FLUID FLOW
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
420400* - Engineering- Heat Transfer & Fluid Flow