Turbulent transport of a passive scalar in a channel by direct simulation
Conference
·
OSTI ID:5108804
- Washington Univ., Seattle, WA (USA). Dept. of Chemical Engineering
The authors discuss their study of scalar transport in a fluid with a Reynolds number of 360 based on friction velocity or 4600 based on average velocity and width between the plates. The Prandtl number is 0.72. The simulation method uses Fourier transforms to integrate parallel to boundaries and Chebyshev collocation to integrate perpendicular to boundaries. A Runge-Kutta-Wray scheme is used to integrate in time so that an adjustable time step size can be chosen to keep the scheme numerically stable. The flow and temperature fields are solved with 96 Fourier modes in the two parallel directions and 64 Chebyshev collocation points in the perpendicular direction for a total of about 600,000 grid points in the entire domain.
- OSTI ID:
- 5108804
- Report Number(s):
- CONF-881143--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BOUNDARY CONDITIONS
CALCULATION METHODS
COMPARATIVE EVALUATIONS
COMPUTER CALCULATIONS
DATA
EXPERIMENTAL DATA
FLUID FLOW
FLUIDS
FOURIER TRANSFORMATION
INFORMATION
INTEGRAL TRANSFORMATIONS
ITERATIVE METHODS
NUMERICAL DATA
NUMERICAL SOLUTION
PLATES
PRANDTL NUMBER
RESEARCH PROGRAMS
REYNOLDS NUMBER
RUNGE-KUTTA METHOD
SIMULATION
TEMPERATURE EFFECTS
THEORETICAL DATA
TRANSFORMATIONS
TURBULENT FLOW
420400* -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BOUNDARY CONDITIONS
CALCULATION METHODS
COMPARATIVE EVALUATIONS
COMPUTER CALCULATIONS
DATA
EXPERIMENTAL DATA
FLUID FLOW
FLUIDS
FOURIER TRANSFORMATION
INFORMATION
INTEGRAL TRANSFORMATIONS
ITERATIVE METHODS
NUMERICAL DATA
NUMERICAL SOLUTION
PLATES
PRANDTL NUMBER
RESEARCH PROGRAMS
REYNOLDS NUMBER
RUNGE-KUTTA METHOD
SIMULATION
TEMPERATURE EFFECTS
THEORETICAL DATA
TRANSFORMATIONS
TURBULENT FLOW