Effect of Exit Plane Boundary Conditions on Time Accurate Computations 970140
Effects of boundary conditions on the computational simulation of time dependent flows is studied. In particular, the effect of various boundary conditions for the flow over a half circular cylinder which is known to exhibit periodic shedding under certain conditions is investigated. A type of convection boundary condition called the radiation boundary condition is demonstrated to eliminate the secondary frequency which contaminates the solution due to the partial reflection of the fluid structures at the exit plane. However, the boundary condition implementation comes at the additional cost of storing results corresponding to three time levels.
Citation: Kumarasamy, S. and Barlow, J., "Effect of Exit Plane Boundary Conditions on Time Accurate Computations," SAE Technical Paper 970140, 1997, https://doi.org/10.4271/970140. Download Citation
Author(s):
Sanjay Kumarasamy, Jewel B. Barlow
Affiliated:
University of Maryland
Pages: 8
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Topics in Vehicle Aerodynamics-SP-1232
Related Topics:
Computer simulation
Engine cylinders
Radiation
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