1000000

Figure 6: Stanton number vs. Reynolds number for smooth and rough panels.

Figure 7: Skin friction for rough panels compared to standard roughness correlations. Each correlation shown using ks from Eqn. 7 over all surfaces. Surfaces 1-3 also shown for ks = k/2 (dashed lines). Data for Rex = 900,000 only.

0.005 0.0045 0.004 0.0035 0.003 St 0.0025 0.002 0.0015 0.001 0.0005 0

Figure 8: Stanton number for rough panels compared to standard roughness correlations. Each correlation shown using ks from Eqn. 7 over all surfaces. Surfaces 1-3 also shown for ks = k/2 (dashed lines). Data for Rex = 900,000 only.

Kays & Crawford (ks) [C=1] Kays & Crawford (ks=k/2) [C=1] Kays & Crawford (ks) [C=0.35] Kays & Crawford (ks=k/2) [C=0.35] Mills (ks) Mills (ks=k/2) Dipprey & Sabersky (ks) Dipprey & Sabersky (ks=k/2) Data

Smooth-Reference

Figure 8: Stanton number for rough panels compared to standard roughness correlations. Each correlation shown using ks from Eqn. 7 over all surfaces. Surfaces 1-3 also shown for ks = k/2 (dashed lines). Data for Rex = 900,000 only.

Surface #1

Surface #2

Surface #3

Surface #4

Surface #5

Surface #6

Kays & Crawford (ks) [C=1] Kays & Crawford (ks=k/2) [C=1] Kays & Crawford (ks) [C=0.35] Kays & Crawford (ks=k/2) [C=0.35] Mills (ks) Mills (ks=k/2) Dipprey & Sabersky (ks) Dipprey & Sabersky (ks=k/2) Data

Smooth-Reference

Surface #1

Surface #2

Surface #3

Surface #4

Surface #5

Surface #6

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