1. Nikuradse, J., 1933, “Laws of Flow in Rough Pipes,” NACA TM 1292, National Advisory Committee on Aeronautics.
2. Schlichting, H., 1936, “Experimental Investigation of the Problem of Surface Roughness,” NACA TM-832, National Advisory Committee on Aeronautics.
3. Coleman
H. W.
, HodgeB. K., and TaylorR. P., 1984, “A Re-Evaluation of Schlichting’s Surface Roughness Experiment,” ASME Transactions-Journal of Fluids Engineering, 106, pp. 60–65.
4. Sigal
A.
, and DanbergJ. E., 1990, “New Correlation of Roughness Density Effect on Turbulent Boundary layer,” AIAA Journal, 28, No. 3, pp. 554–556.
5. Sigal A., and Danberg J. E., 1988, “Analysis of Turbulent Boundary Layer Over Roughness Surface With Application to Projectile Aerodynamics,” Amy Ballistic Research Lab, Aberdeen Proving Grounds MD, Technical Report BRL-TR-2977.