مدلسازی فیزیکی همراه با استفاده از مدل­های عددی  با دقت مطلوب برای شرایطی که امکان مدلسازی به ازای دبی­های زیاد در آزمایشگاه به دلیل محدودیت­های هیدرولیکی و فیزیکی میسر نباشد امری اجتناب­ناپذیر است. در این تحقیق، ضمن اندازه­گیری­های مدل فیزیکی، از مدل عددی المان محدود ANSYS CFX برای شبیه­سازی عددی میدان جریان شامل سرعت، فشار و ضریب کاویتاسیون برای مدل سریز سد آزاد استفاده شده است. به کمک دو معی...

In this paper, performance of centrifugal pump as turbine (PAT) is investigated numerically. Three different specific speeds are considered and three pumps are designed using diagrams from catalogues and CFturbo V.9 software. Next, models are analyzed by Ansys CFX 16 software and results are compared with those of CFturbo software. Also, a mesh study analysis for one case is performed in order ...

Carbon monofluoride (CFx) has a high energy density, exceeding 2000 W h kg(-1), yet its application in primary lithium batteries is limited by its power capability. Multi-walled carbon nanotubes (CNTs) are appealing additives for high-power batteries, due to their outstanding electronic transport properties, high aspect ratio necessitating low volume fraction for percolation, and high tensile s...

Controlled release (CR) Ciprofloxacin (CFX) matrix tablets were prepared using Ciprofloxacin betaine as a model drug and Kollidon SR as a core matrix former. Kollidon SR embedded CFX matrix tablets were then characterized with Carbopol 974P NF, Cetyl alcohol, Hydroxypropyl methyl cellulose (HPMC 4.5 cps). CFX release was 74% after 10 hours dissolution in 0.01 N HCl solution from the tablets con...

The paper presents the results of experimental and model tests transport dispersed fluid droplets forming a cloud aerosol in stream air ventilating selected section underground excavation. excavation for testing is part ventilation network Experimental Mine Barbara Central Mining Institute. For given environmental conditions, such as temperature, pressure, relative humidity, velocity air, distr...

The article is devoted to studying the contra-rotating stages with different impellers and blade discs. Determining reduction of volumetric losses by modeling in software package ANSYS CFX. work aimed create study flow characteristics: semi-open, closed impellers, As a result work, following were determined compared: semi-opened impeller disc; disc. research, fluid flows their characteristics f...

A numerical method for thermogasdynamic calculation of low-thrust liquid rocket engines is presented. These are used as end organs the system space attitude control nanosatellites and small spacecraft. The based on use TERRA software package thermodynamic Ansys CFX gas-dynamic using Navier-Stokes equations. results calculation, well flow pattern working fluid in chamber, validating described al...

This study aims to find the genotoxic and cytotoxic effects of a particular combination of pemetrexed (PMX) and cefixime (CFX) in human peripheral blood lymphocytes. Chromosome aberration (CA), sister chromatid exchange (SCE), and micronucleus (MN) tests were used to assess genotoxicity. Whereas, the cytotoxicity was evaluated by using mitotic index (MI), proliferation index (PI), and nuclear d...

Warfarin therapy is used in lupus anticoagulant patients with thrombosis and yet the prothrombin time (PT)/international normalized ratio (INR) in these patients can sometimes be falsely elevated. Both a PT-based factor II (FII) assay and a chromogenic, enzymatic factor X (CFX) assay have been used for monitoring when the INR may be artifactual. This study compared FII and CFX assays in lupus a...