Syarifuddin, A., 		Prastianto, R., & 		Silvianita, S.
2015 Feb 20.  Numerical Study on the Fluid Forces of a Rigid Cylinder Covered by Helical Rods with Gap Due to the Variations of Incoming Flow Direction and Pitch at Reynolds Number 1000. Journal of Ocean, Mechanical and Aerospace -science and engineering-. [Online] 16:1