Flow normal to a disk-like plate

The flow normal to a stationary disk-like plate is investigated by direct numerical simulations across wide ranges of Reynolds number upper R e R e $Re$ ( 100 less than or equals upper R e less than or equals 300 100 ≤ R e ≤ 300 100 ≤ Re ≤ 300 ), number of polygon vertices upper N N N ( 2 less than or equals upper N less than or equals 5 2 ≤ N ≤ 5 2 ≤ N ≤ 5 ), and compression ratio k k k ( 0 less than or equals k less than or equals 1 0 ≤ k ≤ 1 0 ≤ k ≤ 1 ), where k equals 0 k = 0 $k = 0$ and 1 correspond to a regular polygon and circular disk, respectively. All plates share identical area upper A Subscript r A r Aᵣ and diameter–thickness aspect ratio chi equals upper D divided by t Subscript d Baseline equals 50