Experimental Investigations on Geometry Modulated Solute Mixing in Viscoelastic Media
نویسندگان
چکیده
In this study, geometrically modified microchannels fabricated using a stereolithography technique are employed to analyze micromixing of polymeric solutions. Experimental and numerical analyses were conducted evaluate the qualitative quantitative validity Newtonian fluid flow inside channels. An in-house image processing code was used dye concentration distributions resulting from complex transport mixing within Our analysis illustrates existence inertio-elastic instability in for viscoelastic fluids. addition, presence significantly enhances efficiency as result interaction between viscoelasticity channel geometry. This provides important physical insights into cost-effective design operation microfluidic devices that handle fluids, which could be useful designing analyzing passive micromixer transports bio/polymeric
منابع مشابه
Radial fingering in viscoelastic media, an experimental study
We report measurements of two dimensional radial fingering in viscoelastic concentrated suspensions (pastes) of colloidal particles, in small surface tension conditions. The displacement efficiency, the average finger width and the fractal dimension for growth have been measured in a broad range of paste viscosity and driving pressure. The growth process appears to be fractal in all the experim...
متن کاملExperimental investigations on the formation of excess air in quasi-saturated porous media
The formation of an excess of dissolved gas (“excess air”) in quasi-saturated media was studied by analyzing and interpreting dissolved noble gas concentrations in laboratory column experiments. Using quartz sand filled columns of 1 m length, two different experimental designs were realized. In the first, groundwater recharge was simulated by a unidirectional vertical water flow through the col...
متن کاملsimulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
Solute Transport in Porous Media. Media with Capillaries as Voids
We study solute transport in porous media with periodic microstructures consisting of interconnected thin channels. We discuss a local physical mechanism that occurs at the intersections of channels and promotes mixing of the solute with the solvent (i.e., the host liquid). We identify the parameter regime, where this mechanism is the dominant cause of dispersion, and obtain the effective or ma...
متن کاملNumerical Investigations of Mixing in Physically Heterogeneous Porous Media using the One- and Two-Particle Covariance
Several works have pointed out that local dispersion plays a crucial role in determining the behavior of the concentration variance and coef¿cient of variation over time for conservative tracers. Numerical investigations aimed at evaluating the effect of the local dispersivity on dilution time scales are performed using a random-walk particle-tracking method model applied to transport of conser...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Industrial & Engineering Chemistry Research
سال: 2023
ISSN: ['0888-5885', '1520-5045']
DOI: https://doi.org/10.1021/acs.iecr.2c03663