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Showing 1 to 16 of 16 for “"star-cd"”.
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Modeling Three Reacting Flow Systems with Modern Computational Fluid Dynamics
… improved coal combustion modeling using STAR-CD, and premixed combustion modeling. Each project is described below. The solar CO2 conversion modeling project involved CFD simulations of a prototype solar CO2 converter that uses sunlight to dissociate CO2 into CO and O2. Modeling was used …
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Study of geometry effects on local corrosion rates for Lbe loop
… problem was simulated by commercial software STAR-CD. Results provide a good prediction where the highest corrosion rate might occur and how geometry will affect the local corrosion phenomenon. A simple study on reactive flow was carried out by using STAR-CD + CHEMKIN, which is designed for …
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Mean reaction rate closures for nanoparticle formation in turbulent reacting flow
… terms. The implementation of the method in the Star-CD computational fluid dynamics code is described in detail and validated against a test problem. The numerical performance of DQMoM-IEM is systematically compared to the stochastic fields (SF) turbulent reaction model. The methods share many …
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Simulation of turbulent flames relevant to spark-ignition engines
… computational fluid dynamics (CFD) code, STAR-CD, and it is shown that both strained and unstrained flamelet models are able to predict the experimental pressure rise in a closed vessel. In the final part of this work, a spark-ignition engine is simulated in STAR-CD using the flamelet …
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CFD study of section characteristics of Formula Mazda race car wings
… race car class, this study was conducted. The Star-CD computation fluid dynamics code was used to perform a laminar simulation on the front and rear wings of a Formula Mazda with different angles of attack and Gurney flap heights. Results are presented graphically showing pressure and velocity …
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An Investigation of the Dynamic Effects of Flap Deflection on the Aerodynamic Characteristics of an Airplane Wing Using Computational Fluid Dynamics
… This study shows an application of STAR-CD, a commercial computational fluid dynamics (CFD) software, to an investigation of the dynamic effects of flap deflection on the lift, drag and moment coefficients, as well as on the location of the center of pressure. For this study, a plain …
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The role of the aerodynamic modifications of the shapes of tall buildings
… CFD (Computational Fluid Dynamics) software, STAR-CD and compared with results from wind tunnel tests. Based on this comparison, the optimal model to effectively mitigate adverse wind excitations is recommended.
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Investigation of a Highly Loaded, High Pressure Ratio Axial Turbine Stage for Industrial Applications
… for the design, and the commercial CFD code (Star-CD) for the mesh and flow solutions.</p>
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Two-phase CFD analyses in fuel assembly sub-channels of Pressurized Water Reactors under swirl conditions
… simulations were conducted with a 3-D CFD code (STAR CD) for various types of swirl generating components in FA. New insights regarding local void distribution in sub-channels under swirl conditions were obtained, which are relevant for CHF (“bubble pockets”). Furthermore, an enhanced wall …
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Effect Of Intake Temperature And Boost Pressure On The Auto-Ignition Of Fuels With Different Cetane Numbers And Volatilities
… and CN on the auto-ignition process. A STAR-CD CFD model is applied to track the effect of intake temperature and pressure on fuel evaporation, start of exothermic reactions, formation of different species and their significance in the auto-ignition process. CHEMKIN is used to study the …
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CFD analysis of three-dimensional thermalhydraulics flow effects on wall concentration gradient profiles for Lbe loop fittings
… being characterized in the DELTA loop at LANL. STAR-CD is the simulation package used to make these predictions, which include detailed 3-D velocity, temperature and concentration gradient profiles of the corrosion/precipitation on the inner surface of these fittings. The different predicted …
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The Development of a Computational Model of Thrombosis in Hemodialysis Catheters
… Fluent model was ported to the Fortran-based STAR-CD model successfully. A computer geometry of a blood flow cell matching the geometry used with the previous two-dimensional model was created, and results for that geometry using the new computer compared favorably with the results from the …
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CFD Modelling of the Mixture Preparation in a Modern Gasoline Direct Injection Engine and Correlations with Experimental PN Emissions
… fuel spray. The methodology utilised the Siemens STAR-CD 3D CFD software environment and employed a combination of statistical and optimization methods supported by experimental data. The calibration process identified dominant factors influencing spray properties and established their optimal …
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Simulation of Turbulent Flames at Conditions Related to IC Engines
… up to about 3 MPa as it is well known, but it starts to increase beyond this pressure. This contrasting behaviour observed for the rst time is explained and it is related to the role of pressure dependent reaction for iso-octane and involving OH and the in uence of this radical on the fuel …
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Nuclear Subchannel Investigations Using CFD
Made available in DSpace on 2017-07-06T18:56:04Z (GMT). No. of bitstreams: 3 Rock_Daniel_T_MS.pdf: 62552009 bytes, checksum: 88a7dd5d3e4e5c67f3a3524e6c5b6f16 (MD5) Rock_Daniel_T_MS_ABS.pdf: 1681414 bytes, checksum: 0c61614b1bf9c4f31fa419ee777984c1 (MD5) license.txt: 4813 bytes, checksum: …
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CFD Modelling of Down-Sized GDI Engines: Fuel Injection, In-Cylinder Phenomena and Correlation to Engine-Out PN Emissions
… pressure was varied between 60 and 250 bar; start of injection timing between 180 and 340 CAD BTCD; ignition timing was varied between 0 and 40 CAD BTDC, and finally intake valve opening timing in the range 0 – 40 CAD BTDCi. An extensive CFD modelling campaign was conducted based on this test …