Claus K. Zéberg-Mikkelsen

TL;DR: In this article, a new theory for viscosity modeling based on friction concepts of classical mechanics and the Van der Waals theory of fluids is presented, which is the fundamental difference between this theory and other available theories is the fact that the visco-ness of dense fluids, which characterizes pure shear flow, is approached as a mechanical, rather than as a transport, property.

TL;DR: In this article, the friction theory for viscosity modeling is used in conjunction with the SRK, PR and PRSV cubic equations of state in order to develop three one-parameter general models for the prediction of visco-temperature and pressure.

TL;DR: In this paper, a general f-theory viscosity model based on the perturbed-chain statistical associating fluid theory (PC-SAFT) equation of state (EoS) has been developed for the description of the viscoity behavior of the normal alkanes family (from methane to n-octadecane).

TL;DR: In this paper, the authors further extended the f-theory approach to the viscosity modeling of heavy reservoir fluids with viscosities up to thousands of mPa · s.

TL;DR: In this paper, the one-parameter friction theory (f-theory) general models have been extended to the viscosity prediction and modeling of characterized oils, which take advantage of the repulsive and attractive pressure terms of cubic equations of state such as the SRK, PR and PRSV.