A5059897353- Microfluidic and Capillary Electrophoresis Applications
- Microfluidic and Bio-sensing Technologies
- Heat Transfer and Optimization
- Innovative Microfluidic and Catalytic Techniques Innovation
- Heat Transfer and Boiling Studies
- Lattice Boltzmann Simulation Studies
- Supercapacitor Materials and Fabrication
- Catalytic Processes in Materials Science
- Multi-Criteria Decision Making
- Fluid Dynamics and Turbulent Flows
- Advanced Multi-Objective Optimization Algorithms
- Bayesian Modeling and Causal Inference
- Corrosion Behavior and Inhibition
- Nanofluid Flow and Heat Transfer
- Magnesium Alloys: Properties and Applications
- Catalysis and Hydrodesulfurization Studies
- Polymer Nanocomposites and Properties
- Iterative Learning Control Systems
- Phase Equilibria and Thermodynamics
- Power Quality and Harmonics
- biodegradable polymer synthesis and properties
- Nanoparticles: synthesis and applications
- Energy and Environment Impacts
- Skin Protection and Aging
- AI-based Problem Solving and Planning
Independent University
2023-2024
University of Science and Technology
2023
Hajee Mohammad Danesh Science and Technology University
2023
International Islamic University Chittagong
2015-2021
Inha University
2009-2020
Sejong University
2020
Molina Center for Energy and the Environment
2020
Bangladesh University of Engineering and Technology
2011
In this work, numerical and experimental analyses have been conducted to analyze the effect of different shapes obstructions (diamond, rectangular, circular) on mixing performance a micromixer with Tesla structures. Fluid flow behaviors were numerically analyzed by solving Navier–Stokes equations using convection-diffusion model in Reynolds number range 0.2–200. structure can produce transverse dispersion splitting recombining fluid streams. Micromixers fabricated soft lithography technique...
This work examined the influence of dual incorporation MoO2 and SiO2 on corrosion behavior pure titanium treated via plasma electrolytic oxidation (PEO). To achieve this purpose, substrate was PEO in an alkaline-molybdate electrolyte without with nanoparticles. The microstructural observation revealed that addition nanoparticles into during helped to seal structural defects coating so a rougher, thicker, denser rich successfully obtained. From electrochemical measurements 3.5 wt.% NaCl...
A micromixer with unbalanced three-split rhombic sub-channels was proposed, and analyses of the mixing flow characteristics this were performed in work. Three-dimensional Navier-Stokes equations combination an advection-diffusion model two working fluids (water ethanol) solved for analysis. The index pressure drop evaluated compared to those a two-split range Reynolds numbers from 0.1–120. results indicate that proposed is efficient 30–80. parametric study determine effects angle sub-channel...
Severe acute malnutrition (SAM) is a common condition that kills children and intellectually maims those who survive. Close to 20 million under the age of 5 years suffer from SAM globally, about 1 them die each year. Much this burden takes place in Asia. Six countries Asia together have more than 12 suffering SAM: 0.6 Afghanistan, Bangladesh, 8.0 India, 1.2 Indonesia, 1.4 Pakistan, Yemen. This article based on review intervention programs Asian where, despite huge numbers condition, coverage...
In this study, a numerical investigation on mixing and flow structure in serpentine microchannel with non-aligned input channels was performed. The generate vortical flow, which is formed by incoming fluid streams through tangentially aligned channels. Mixing index evaluated to measure the degree of micromixer. Analyses field were investigated for Reynolds number range starting from 0.1 120. analyzed find its effect performance. two working fluids micromixer using three-dimensional...
The effect of four controllable input process parameters AISI 4140 steel, cross-feed, workpiece velocity, wheel and the depth cut were experimentally investigated under dry wet conditions. Three responses, contact temperature, material removal rate (MRR), machining cost during surface grinding considered. was optimized using a recently developed combined methodology based on response (RSM) desirability functional approach (DFA). RSM generated models responses for prediction while DFA solved...
Multi-objective shape optimization of a micromixer with staggered herringbone grooves on the top and bottom walls has been performed through three-dimensional Navier–Stokes analysis, surrogate method multi-objective evolutionary algorithm. Mixing index friction factor are selected as objective functions, four design variables, viz., number per half cycle (N), angle groove (θ), depth to channel height ratio (d/h), width pitch (Wd/pi) chosen out various geometric parameters which affect...
The shape of impeller blades a centrifugal pump affects the best efficiency point (BEP), and splitter improve performance at BEP. In this work, multiple parameters such as number blades, length blade, blade angle hub, wrap were modified to maximize head minimize input power. problem was solved by numerical experimental approach. Initially, an designed tested in laboratory setup. same simulated computational fluid dynamics (CFD) solver, checked accuracy CFD results, optimized in-house...
Multifunctional fabrics using conventional processes have piqued increasing global interest. The focus of this experiment was to assess the modification cotton fabric surface by utilizing silver nanoparticles (AgNPs) and introducing functional properties along with sustainable dyeing performance. A single-jersey knitted composed cellulose-enriched 100% natural fiber (cotton) an areal density 172 GSM used in study. standard recipe test methods were employed. FTIR-ATR spectra determine fixing...
This work presents a parametric investigation on flow and mixing in chaotic micromixer consisting of two-layer crossing channels proposed by Xia et al. (Lab Chip 5: 748-755, 2005). The performance were numerically analyzed using commercially available software ANSYS CFX-15.0, which solves the Navier-Stokes mass conservation equations with diffusion-convection model Reynolds number range from 0.2 to 40. A index based variance fraction mixture was employed evaluate micromixer. structure...
Abstract Two chaotic micromixers (Models A and B) based on the split‐and‐recombine principle using multilayer microchannels are proposed mixing performance was analyzed numerically experimentally for a wide range of Reynolds numbers. The fluid flow were by solving Navier‐Stokes equations. Micromixers fabricated soft‐lithography technique. As working fluids, water dye/water mixture used. Quantitative qualitative analyses performed confocal scanning microscopy image processing techniques....
Research in assessing the Mental Health Problems (MHPs), e.g., stress, anxiety, and depression of university students has had much interest worldwide for last decade. This article provides a large comprehensive dataset concerning MHPs 2028 from 15 top-ranked universities Bangladesh, including 9 government/public 6 private universities. To collect data, GAD-7 (for Anxiety), PSS-10 Stress), PHQ-9 Depression) models are adopted to reflect equivalent academic perspectives. Additionally, student...
Numerical analyses have been performed to investigate the effects of geometric parameters a straight groove micromixer on mixing performance and pressure drop. Three-dimensional Navier-Stokes equations with two working fluids, water ethanol used calculate index A parametric study has carried out find number grooves per cycle, arrangement patterned walls, additional in triangular dead zones between half cycles grooves. The three arrangements walls micromixer, i.e., single wall patterned, both...
Optimization of a three-dimensional split-and-recombine micromixer with serpentine structure was performed using Navier–Stokes analysis and optimization techniques. The study at fixed Reynolds number 15, four dimensionless design variables, viz. the ratio subchannel width to main channel width, length pitch length, depth depth, recombination width. space investigated by parametric study, points within were selected Latin hypercube sampling method. Two different objective functions, mixing...
Abstract Multiobjective optimizations of a micromixer with two‐layer serpentine crossing channels were performed at two different Reynolds numbers by using multiobjective genetic algorithm and surrogate modeling based on Navier‐Stokes analysis. The included three dimensionless design variables, namely, ratios the diagonal channel width to pitch length, main depth length. space was confirmed parametric study, Latin hypercube sampling technique used select points within space. Kriging...