نتایج جستجو برای: هیدروسیکلونجداسازی آب از نفتشرایط عملیاتیشبیهسازی cfd
تعداد نتایج: 718126 فیلتر نتایج به سال:
the aim of this paper is to study the local nusselt number of the symmetrical liquid-liquid jets emitting from a nozzle. equations obtained from theoretical works are arranged in the form of a computerized model. the validity of this model was tested by the data from an experimental paper [1]. after few adjustments the model predicted the experimental data with a reasonable accuracy. making sur...
CFD has become a buzz word in all sectors and many industries, while the positive displacement compressor industries are rather slow in embracing it. The paper examines whether it is because positive displacement compressors were considered as basically thermodynamic devices or due to the inherent challenges for application. The paper discusses the need for CFD and it’s current status in genera...
The demand for flow visualization software stems from the popular (and growing) use of Computational Fluid Dynamics (CFD) and the increasing complexity of simulation data. CFD is popular with manufacturers as it reduces cost and the time of production relative to the expense involved in creating a real physical model. Modifications to a physical model to test new prototypes may be non-trivial a...
We investigate the potentials and limitations of computational fluid dynamics (CFD) analysis of patient specific models from 3D angiographies. There are many technical problems in acquisition of proper vascular models, in pre-processing for making 2D surface and 3D volume meshes and also in post-processing steps for display the CFD analysis. We hope that our study could serves as a technical re...
Error control in computational uid dynamics (CFD) has been crucial for reliability and e ciency of numerical ow simulations. The roles of truncation and rounding errors in difference approximations are discussed. Truncation error control is reviewed for ODEs. For di erence approximations of PDEs, discretization error control by Richardson extrapolation is outlined. Applications to anisotropic g...
در این تحقیق رفتار سیال در یک بستر پرشده ثابت با نسبت قطر لوله به قطر ذره برابر 6/4 با استفاده از دینامیک سیالات محاسباتی بررسی شد. هندسه بستر با استفاده از روش پرکن گسسته مدل شد. شبیه سازی های cfd در گستره عدد رینولدز 79/611-85/3 در رژیم جریان آرام و آشفته انجام شدند. در رژیم جریان آشفته از مدل آشفتگی rng k-ε استفاده شد. مشاهده شد که جریان سیال در فاصله 75/0 سانتیمتر از ابتدای بستر توسعه یافته...
Semi-Supervised Learning of Lift Optimization of Multi-Element Three-Segment Variable Camber Airfoil
This chapter describes a new intelligent platform for learning optimal designs of morphing wings based on Variable Camber Continuous Trailing Edge Flaps (VCCTEF) in conjunction with a leading edge flap called the Variable Camber Krueger (VCK). The new platform consists of a Computational Fluid Dynamics (CFD) methodology coupled with a semi-supervised learning methodology. The CFD component of t...
Advances in computer speed and availability of user friendly software has made computational fluid dynamics (CFD) a cost effective compliment and at times alternative to physical modeling in the field of civil engineering hydraulics. The use of CFD is wide spread in mechanical and aerospace engineering, however, in the field of civil engineering and particularly in hydraulics, there is minimal ...
Computational fluid dynamics (CFD) modeling of nominally patient-specific cerebral aneurysms is increasingly being used as a research tool to further understand the development, prognosis, and treatment of brain aneurysms. We have previously developed virtual angiography to indirectly validate CFD-predicted gross flow dynamics against the routinely acquired digital subtraction angiograms. Towar...
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