1. Cheng, C.Y.: Free convection heat transfer from a vertical cone embedded in a bidisperse porous medium. J. Chin. Soc. Mech. Eng. 34, 11–19 (2013a)
2. Cheng, C.Y.: Natural convection heat transfer from an inclined wavy plane in a bidisperse porous medium. Int. Commun. Heat Mass Transf. 43, 69–74 (2013b)
3. Cheng, C.Y.: Free convective boundary-layer flow over a vertical truncated cone in a bidisperse porous medium. Lecture Notes Engineering and Computer Science, 3LNECS,1997–2002 (2013c)
4. Cheng, C.Y.: Mixed convection heat transfer from a vertical cylinder in a bidisperse porous medium. J. Chin. Soc. Mech. Eng. 35, 46–56 (2014a)
5. Cheng, C.Y.: Nonsimilar boundary layer analysis of free convection heat transfer over a vertical cylinder in bidisperse porous media. Transp. Porous Media 101, 401–412 (2014b)