Slide-string instruments allow continuous control of pitch by articulation with a slide object whose position of contact with the
string is time-varying. This paper presents a method for simulation of such articulation. Taking into account sensing and musical
practice considerations, an appropriate physical model configuration is determined, which is then formulated in numerical form
using a finite difference approach. The model simulates the attachment and detachment phases of slide articulation which generally involve rattling, while finger damping is modelled in a more
phenomenological manner as a regionally induced time-varying
damping. A stability bound for the numerical model is provided
via energy analysis, which also reveals the driving power contributions of the separate articulatory sources. The approach is exemplified with simulations of slide articulatory gestures that involve
glissando, vibrato and finger damping.