In this study, computations are performed for steady, subsonic and turbulent flow past five element OMAR configuration shown in figure below. The objective of this study is to compare results obtained using a structured grid with an unstructured grid.
Grid Details
S.No
Grid Type
Elements
No of cells (Mn)
Test Conditions
Altitude
Angle of Attack (°)
Mach Number (°)
Reynolds Number (Mn/Mtr)
Results
Average Y+
Average Y+ is less then one for all the elements of the configuration.
"Cl - Alpha" & "Cd - Alpha" Curves
The results obtained using both structured and unstructured grids for lower angles of attack show good comparison with the experimental results. With increase in angle of attack, the results obtained using structured grid show better agreement with the experimental results compared to the one obtained unstructured grid.
