result drag
DESCRIPTION
hgjgTRANSCRIPT
no velocity Rey noRigid rod drag force Body base surface facing upstream Body base surface facing downstream net drag coefficient,CD
m/s x10^5 F(N) body diameter: 0.065m body diameter: 0.065m
Fd0 drag forcenet drag force
drag coefficient drag force
net drag force
drag coefficient Cd1-Cd2
Fd1 Fd1-Fd0 Cd1 Fd2 Fd2-Fd0 Cd2 1 8 0.34 0.024 0.227 0.203 1.25 0.069 0.045 0.27 0.982 10 0.43 0.024 0.327 0.303 1.19 0.115 0.091 0.35 0.843 12 0.51 0.04 0.47 0.43 1.17 0.16 0.12 0.33 0.844 14 0.60 0.055 0.628 0.573 1.15 0.211 0.156 0.31 0.845 16 0.69 0.071 0.84 0.764 1.17 0.284 0.213 0.33 0.846 18 0.77 0.09 1.07 0.98 1.19 0.367 0.277 0.34 0.857 20 0.86 0.114 1.34 1.34 1.32 0.43 0.316 0.31 1.01
Body Base Surface Facing Upstream
Body Base Surface Facing Downstream
Theoretical Cd
Percentage error (%) Theoretical Cd
Percentage error (%)
1.2 4.2 0.4 32.51.2 0.8 0.4 12.51.2 2.5 0.4 17.51.2 4.2 0.4 22.51.2 2.5 0.4 17.51.2 0.8 0.4 15.01.2 10.0 0.4 22.5