نتایج جستجو برای: computational fluid dynamic cfd

تعداد نتایج: 856193  

Journal: :Concurrency - Practice and Experience 1999
C. T. H. Everaars Barry Koren Farhad Arbab

In this paper we describe one experiment in which a new co-ordination language, called MANIFOLD, is used to restructure an existing sequential Fortran 77 code from computational fluid dynamics (CFD), into a parallel application. MANIFOLD is a co-ordination language developed at CWI (Centrum voor Wiskunde en Informatica) in the Netherlands. It is very well suited for applications involving dynam...

Journal: :Computers & Chemical Engineering 2014
Ke Wang Tao Chen Soo Tin Kwa Yifei Ma Raymond Lau

Released flammable chemicals can form an explosible vapour cloud, posing safety threat in both industrial and civilian environment. Due to the difficulty in conducting physical experiments, computational fluid dynamic (CFD) simulation is an important tool in this area. However, such simulation is computationally too slow for routine analysis. To address this issue, a meta-modelling approach is ...

2015
L. Marimon Giovannetti S. W. Boyd

An experimental technique to accurately quantify the deformation and the bend-twist coupling of high performance composite foils under fluid loading is presented. The experimental results are reproduced in a Computational Fluid Dynamic (CFD) environment to assess the impact of board deflection and changes in pitch angle on vertical force generated in the C-foils while sailing under increased hy...

2012
Theresia I. Yiallourou Jan Robert Kröger Nikolaos Stergiopulos David Maintz Bryn A. Martin Alexander C. Bunck

Cerebrospinal fluid (CSF) dynamics in the cervical spinal subarachnoid space (SSS) have been thought to be important to help diagnose and assess craniospinal disorders such as Chiari I malformation (CM). In this study we obtained time-resolved three directional velocity encoded phase-contrast MRI (4D PC MRI) in three healthy volunteers and four CM patients and compared the 4D PC MRI measurement...

Journal: :Computers & Chemical Engineering 2010
S. A. Martínez-Delgadillo H. R. Mollinedo P. M. A. Gutiérrez I. D. Barceló J. M. Méndez

In the present work, the performance of a tubular electrochemical reactor operated with three different inlets (central, lateral and tangential) was evaluated. Fluid flow simulations through the electrochemical reactor were performed using computational fluid dynamics (CFD). The steady state fluid flow was simulated to visualize the velocity field behavior along the reactor for each different i...

2014
N. Stosic A. Kovacevic I. K. Smith

Dynamic flow losses in the suction chamber are a significant factor in reducing screw compressor efficiency but can only be roughly estimated in compressor design due to the simplified methods of analysis used to account for them. Today, Computational Fluid Mechanics analysis may be used to estimate velocity, pressure, temperature and concentration fields within a screw compressor far more accu...

Journal: :Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine 2011
M Cavazzuti M A Atherton M W Collins G S Barozzi

Three models of different stent designs implanted in a cerebral aneurysm, originating from the Virtual Intracranial Stenting Challenge '07, are meshed and the flow characteristics simulated using commercial computational fluid dynamics (CFD) software in order to investigate the effects of non-Newtonian viscosity and pulsatile flow. Conventional mass inflow and wall shear stress (WSS) output are...

In this study, detailed fluid flow and heat transfer in cooling plates of polymeric membrane fuel cell is studied using computational fluid dynamics (CFD) techniques. The performances of four different coolant flow field designs were compared in terms of the maximum surface temperature, temperature uniformity and pressure drop characteristics. The results indicate that the porous flow field wit...

For a long period of time, design and manufacturing technology of high flow rated vertically suspended pumps (VSPs) which have an extensive applications in many industries such as water and wastewater, mining, petrochemical and oil and gas industries, used to be imported from European countries. For the first time in Iran's pump industry, with the support of Ministry of Petrochemical[ah1]  and ...

2010
M. H. SABER H. MAZAHER ASHTIANI

In this paper, the heat pipe heat exchanger (HPHE) is considered and computational fluid dynamics (CFD) is used to analyze its evaporator’s performance and based on it, will be try to increase the thermal efficiency and to optimize the distribution of fluid flow in this type of heat exchangers. The CFD principles which are made use in this article are effective and appropriate methods that usin...

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