The Shape of a Gravity Finger

Zhan, Lang ; Yortsos, Yanis

National Petroleum Technology Program (U.S.)

关键词: 02 Petroleum;    Gravitation;    Density;    Fluid Flow;    Viscosity;   

DOI  :  10.2172/761983
RP-ID  :  DOE/BC/15211-8
RP-ID  :  AC26-99BC15211
RP-ID  :  761983

美国|英语

来源: UNT Digital Library

【 摘 要 】

A new gravity finger model was proposed in this report in the absence of interfacial tension but in the presence of gravities. This model considered differences in density and viscosity of the two fluids. Thus, it was able to represent both stable and unstable displacements, and the finger development along either the upper or the bottom walls of a channel. This solution recovers the Saffman - Taylar solution if gravity is neglected. The results of the solution are very similar to the solutions proposed by Brener et al. for the gravity number up to 10. The solution provided in this work only has one free parameter while the solution of Brener et al. has three.