Electroosmotic Flow of Viscoelastic Fluid through a Constriction Microchannel
نویسندگان
چکیده
منابع مشابه
Heat Transfer Characteristics of an Electroosmotic Flow of Viscoelastic Fluid in Slit Microchannel
In this work, we derive an analytical solution for heat transfer characteristics of a thermally developing flow of viscoelastic fluids under the application of an electroosmotic force. The walls are subjected to either in isothermal condition or a constant wall heat flux is employed. First, we derive a Helmholtz-Smoluchowski (HS) type slip velocity for the viscoelastic fluids, which is further ...
متن کاملAn unexpected particle oscillation for electrophoresis in viscoelastic fluids through a microchannel constriction.
Electrophoresis plays an important role in many applications, which, however, has so far been extensively studied in Newtonian fluids only. This work presents the first experimental investigation of particle electrophoresis in viscoelastic polyethylene oxide (PEO) solutions through a microchannel constriction under pure DC electric fields. An oscillatory particle motion is observed in the const...
متن کاملAnalytical solution for transient electroosmotic flow in a rotating microchannel
An analytical solution is developed for the unsteady flow of fluid through a parallel rotating plate microchannel, under the influence of electrokinetic force using the Debye–Hückel (DH) approximation. Transient Navier–Stokes equations are solved exactly in terms of the cosine Fourier series using the separation of variables method. The effects of frame rotation frequency and electroosmotic for...
متن کاملElectroosmotic flow velocity measurements in a square microchannel
Experiments were performed using a microparticle image velocimetry (MPIV) for 2D velocity distributions of electroosmotically driven flows in a 40-mm-long microchannel with a square cross section of 200×200 μm. Electroosmotic flow (EOF) bulk fluid velocity measurements were made in a range of streamwise electric field strengths from 5 to 25 kV/m. A series of seed particle calibration tests can ...
متن کاملTwo-fluid Electrokinetic Flow in a Circular Microchannel (RESEARCH NOTE)
The two-fluid flow is produced by the combined effects of electroosmotic force in a conducting liquid and pressure gradient force in a non-conducting liquid. The Poisson-Boltzmann and Navier-Stokes equations are solved analytically; and the effects of governing parameters are examined. Poiseuille number increases with increasing the parameters involved. In the absence of pressure gradient, the ...
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: Micromachines
سال: 2021
ISSN: 2072-666X
DOI: 10.3390/mi12040417