Drag Coefficient of the Crossed Two Circular Cylinders

直交二円柱の抗力係数

Drag Coefficient of the Crossed Two Circular Cylinders

Creators Yamada Hidemi

Creators Takeda Osamu

Creators Osaka Hideo

Creators Kageyama Yoshiro

Measurements were made of the surface pressure distributions and drag coefficient for two circular cylinders forming a cross with low blockage ratio and high aspect ratio. The results showed that integrated drag coefficient was smaller than that of two-dimentional circular cylinder over a range of a Reynolds number from (10)^3 to 8×(10)^3. The local drag coefficient of upstream cylinder at the location of about y/d=1 was larger than that of a single cylinder by 25%. On the other hand the local drag coefficient of downstream cylinder took the minimum value at about z/d=0.2.

[ISSN]0372-7661

[NCID]AN00244228