Pengaruh serat (fiber) daun nanas terhadap koefisien gesek aliran dalam pipa spiral = Effect of pineapple leaf fiber suspensions of drag reduction in circular pipes

Drag reduction aliran crude oil dengan aditif (CMC) dan suspensi fiber bacterial cellulose dalam pipa bulat dan spiral = Drag reduction of crude oil flow with (CMC) additive and bacterial cellulose fiber suspensionin circular and spiral pipes

Pengaruh biopolimer xanthan gum terhadap koefisien gesek aliran dalam pipa spiral diameter 25 mm = The effect of biopolymer xanthan gum towards liquid s coefficient of friction in spiral pipe with a diameter of 25 mm

Analisis lokasi injeksi microbubble terhadap pengurangan hambatan total dengan metode microbubble drag reduction (MBDR) = Analysis of micro bubble injector location to drag reduction with microbubble drag reduction method (MBDR)

Efektifitas pnggunaan bantalan udara pada tongkang pengangkut batu split dalam mengurangi tahanan gesekan kapal = The effectivity of air chusion on a barge to reduce frictional resistance