A two-dimensional numerical simulation study has been performed to model an electrohydrodynamic (EHD) micropump. The micropump consists of an array of interdigitated electrodes along the top and bottom of the micropump channel. The focus of the simulations was to study the effects of electrode gap, stage gap, channel height, and applied voltage. The numerical results were first validated with e...

Devices that harvest electrical energy from mechanical vibrations have the problem that the frequency of the source vibration is often not matched to the resonant frequency of the energy harvesting device. Manufacturing tolerances make it difficult to match the Energy Harvesting Device (EHD) resonant frequency to the source vibration frequency, and the source vibration frequency may vary with t...

Background: The presence of extrahepatic disease, bilobar disease or greater than four hepatic lesions were once considered contraindications to hepatectomy for colorectal metastases but are being reconsidered. We reviewed our experience with resection of extrahepatic disease (EHD) at the time of hepatectomy for metastatic colorectal cancer to determine the impact on perioperative and long-term...

Binary colloidal suspensions are assembled into planar superlattices using ac electric fields. Either triangular or square-packed arrays form, depending on the frequency and relative particle concentrations. The frequency dependence is striking since superlattices develop at low and high frequencies but not at intermediate frequencies. We explain the low frequency behavior (<3 kHz) in terms of ...

Electrohydrodynamic (EHD) technology generates airflow without moving parts, making it a reliable solution for various low-energy applications. EHD-based devices enhance patterns, resulting in significant energy savings air-moving systems. This airflow, also known as ionic wind, is created through Corona discharge, which accelerates electrically charged air molecules strong electric field. Curr...

In the present study, three-dimensional numerical simulations are performed to examine effect of applied direct current electric fields on subcooled flow boiling heat transfer in a vertical minichannel. The volume fluid model is used capture liquid–vapor interfaces, and conservation laws, together with electrohydrodynamic (EHD) equations, solved using finite method. Two mass models Lee Fourier ...

The One-Dimensional Turbulence (ODT) model is applied for the evaluation of internal pipe flows subject to electrohydrodynamic (EHD) forces. ODT formulation presented here incorporates effects electrostatic potential energy transfer kinetic flow due EHD instabilities in presence a corona discharge. Results integral quantities such as skin friction coefficient Cf and Nusselt number Nu are obtain...

Functional nano-microfibers and capsules developed using electrohydrodynamic (EHD) processing methods for the encapsulation of probiotics are reviewed. The properties polysaccharides, proteins, or hybrids compounds utilized encapsulation, characteristics tailor-made matrices by EHD, facilitate high long-term viability cells. ability electrospun fibers electrosprayed to incorporate other functio...

In our previous studies we have shown that particles adsorbed on the surface of a drop can be concentrated at its poles or equator by applying a uniform electric field. This happens because even when the applied electric field is uniform the electric field on the surface of the drop is nonuniform, and so particles adsorbed on the surface are subjected to dielectrophoretic (DEP) forces. In this ...