A three-dimensional (3D) numerical simulation of a two-phase flow liquid/liquid is performed in rectangular microchannel with T-junction. The volume fluid (VOF) method was used under ANSYS Fluent to capture the interface between two phases. dynamic mesh adaptation technique together assumption symmetry plane helps us reduce computational cost. study focuses on patterns and hydrodynamics plugs. ...

Path instability of a rising bubble is complex phenomenon. In many industrial applications, bubbles encounter walls, and the interactions between wall have significant impact on flow physics. A single near vertical was experimentally observed to follow bouncing trajectory. To investigate near-wall dynamics bubbles, 3D numerical simulations were performed based volume fluid (VOF) method using op...

هدف: پژوهش حاضر با هدف تعیین نقش تعاملی خود­شفقت ­ورزی زوجین در تنظیم شناختی هیجان خود و همسر به روش مدل­سازی وابستگی متقابل عامل-شریک انجام شد. روش: از نوع توصیفی_همبستگی مدل­ یابی معادلات ساختاری بود. جامعه آماری شامل کلیه ساکن شهر تهران سال 1399 بود که بین آن‌ها 167 زوج (334 شرکت ­کننده) نمونه­ گیری دردسترس ­عنوان نمونه انتخاب برای گرداوری داده­ ها پرسشنامه راهبردهای تنظیم­ هیجان_فرم کوتاه گ...

The transport of fluid, heat ,and particles (bubbles and solid inclusions) in flowing molten steel is investigated in steel refining ladles, the continuous casting tundish, continuous casting mold and strand, and steel ingot casting processes. The two-equation k-ε model is used to simulate the turbulence. Multiphase fluid flow is numerically simulated with a Lagrangian-Eulerian approach, an Eul...

Water impact phenomenon of general bow section is a critical event for planning hulls. In this paper, the water entry of several arbitrary bow sections is investigated. For this purpose, arbitrary bow shapes which are introduced by Lewis form approximation are considered. In order to obtain pressure distribution and free surface profile, volume of fluid (VOF) method coupled with finite volume m...

DPNTM is a versatile technology that leverages Scanning Probe Microscopy for applications in biotechnology, photomask repair, molecular-electronics, nano-electronics and mask-less lithography. The DPN process was augmented for biotechnology applications (genomics, proteomics) through the design, development, prototype fabrication, testing and manufacture of commercial microfluidic systems calle...

A mathematical model to describe the globular transfer in gas metal arc welding is developed. This work is both theoretical and experimental. Using the volume-of-fluid (VOF) method, the fluid-flow and heat-transfer phenomena during the impingement of a droplet on a solid substrate, arc striking, the impingement of multiple droplets on the molten pool and finally the solidification after the arc...

هدف: بر اساس مطالعه، بسیاری از دانشجویان، سال اول دانشگاه را یکی دوره‌های زمانی پراسترس و چالش‌زای زندگی می‌دانند قادر به سازگاری مناسب با آن نیستند. مطالعه حاضر هدف شناسایی تجارب زیسته دانشجویان پایین در خصوص مشکلات چالش‌های انجام شد. روش: روش پژوهش کیفی نوع پدیدارشناسی بود. داده‌ها استفاده مصاحبه نیمه ساختاریافته جمع‌آوری شد رویکرد 7 مرحله‌ای کلایزی مورد تجزیه تحلیل قرار گرفت. جامعه کلیه آزاد...

In Aluminium manufacturing the Soderberg pot is widely used. The study explains about the bubble motion in cryolite liquid in a Soderberg pot anode face using comprehensive VOF multiphase model in FLUENT, under the action of gravitation. The distribution of bubbles introduced under the anodes of an aluminum reduction cell at the initial time has fixed size. 2D simulation results are reported fo...

vof 3 other conditions will prove very useful for [l^ence. Therapeutic uses of lumbar puncture ^Renography of the ventriculo-subarachnoid space and t?L ?10chemiciil methods have also been dealt with, D increasing the practical utility of the volume, cmlmte facts have been presented in such a way that , can match with considerable accuracy the findings ,LPuractlcally any case. There is an excell...