Acrylic on canvas with retroreflective glass “bubbles”; 30 h x 36 w inches. This original acrylic with mixed media painting is available. Please use the Contact form below to inquire
This is one of several abstract paintings based on controlling the flow and poured patterns of transparent media, pigments and paint of varying consistency. Acrylic allows me to capture all of subtle smoke-like and threaded patterns that occur when fluids of different viscosities are mixed. it’s like fluid dynamics in aspic.
In “Convection, Diffusion” a number of approaches to convective and diffusive mixing of paint and media were explored and captured in the transparent dry film. in some cases convection was aided by gentle swirling with a brush or silicone tool. In others the easel was angled to encourage a little gravity-driven flow. Convective mixing takes place when the flow becomes disordered and no longer laminar. The diffusive properties of paint and media were tweaked using media with different spreading properties and viscosities and by adding water and a flow enhancer to mixtures.
Thin lines of extruded heavy body acrylic paint were also incorporated. these lines change their character as they traverse layers of wet liquid media, softening and bleeding color into the transparent layers.
Many of my pieces incorporate little experiments in vision and visual psychology. I’ve noticed that the dense threads of paint inside clear layers of media (or less dense paint layers) creates interesting 3-D illusions from some angles. The dimensionality appears heightened and often different from the actual surface. I believe this effect is related to differences in refractive index between acrylic 9low) and paint pigment (generally very high). While refractive index is not part of any schema describing color or color perception, it is a quality that we perceive as “hardness” or “shine” and it effects the way the light moves across a surface. In a photo it’s invisible, but in real life, the subtle motions of viewer and light create an almost tangible effect.
- Incredible Demonstration of Fluid Dynamics in Zero-G (universetoday.com)
- Fluid dynamics for the artistically inclined: To create his… (exp.lore.com)