Similar Search Results

3-D CFD Modeling for Parametric Study in a 300-MWe One-Stage Oxygen-Blown Entrained-Bed Coal Gasifier

Park, Sang Shin; Jeong, Hyo Jae; Hwang, Jungho - In: Energies 8 (2015) 5, pp. 4216-4236

Three-dimensional computational fluid dynamics (CFD) modeling of the gasification performance in a one-stage, entrained … used various O<sub>2</sub>/coal and steam/coal ratios, and the modeling used a commercial code, ANSYS FLUENT. CFD modeling …-phase chemical reactions were solved with the Finite–Rate/Eddy–Dissipation Model. The CFD model was verified with actual operating …

Persistent link: https://www.econbiz.de/10011276471

Computational and experimental investigations of an omni-flow wind turbine

Ying, P.; Chen, Y.K.; Xu, Y.G.; Tian, Y. - In: Applied Energy 146 (2015) C, pp. 74-83

Both numerical and experimental studies were conducted to evaluate the performance of an omni-flow wind turbine designed to provide renewable electricity on the top of urban buildings like skyscrapers. The numerical approach was based on Finite Volume Method (FVM) and the turbulence flow was...

Persistent link: https://www.econbiz.de/10011263375

Investigation of the performance of a staggered configuration of tidal turbines using CFD

Gebreslassie, Mulualem G.; Tabor, Gavin R.; Belmont, … - In: Renewable Energy 80 (2015) C, pp. 690-698

staggered configuration in a tidal stream farm using the CFD based Immersed Body Force turbine modelling method. The inflow …

Persistent link: https://www.econbiz.de/10011263768

Numerical analysis and performance enhancement of a cross-flow hydro turbine

Acharya, Nirmal; Kim, Chang-Gu; Thapa, Bhola; Lee, Young-Ho - In: Renewable Energy 80 (2015) C, pp. 819-826

phase (air & water at 25 °C), steady state with SST turbulence model was selected in the commercial CFD code ANSYS CFX 13 …

Persistent link: https://www.econbiz.de/10011263799

Der KMD-Kartellcheck: Marktscreening nach Kartellstrukturen am Beispiel des deutschen Zementmarkts

Lorenz, Christian - Centrum für angewandte Wirtschaftsforschung, … - 2005

Coordination Failure Diagnostics (CFD) is a model that analyses real market processes with the help of time pattern … analysis and investigates whether they operate efficiently. The CFD cartel-audit should enable the detection of cartels via … patterns. The CFD cartel-audit attempts to draw conclusions from these patterns in order to find hidden cartels and to engage …

Persistent link: https://www.econbiz.de/10009369550

3D numerical modeling of landslide-generated tsunamis around a conical island

Montagna, F.; Bellotti, G.; Risio, M. Di - In: Natural Hazards 58 (2011) 1, pp. 591-608

This paper presents numerical computations of tsunamis generated by landslides falling along the flank of a conical island. The model used is the fully three-dimensional commercial code FLOW-3D, based on the VOF technique for the treatment of the free surface. The model results are compared...

Persistent link: https://www.econbiz.de/10010846255

Performance and safety of rooftop wind turbines: Use of CFD to gain insight into inflow conditions

Tabrizi, Amir Bashirzadeh; Whale, Jonathan; Lyons, Thomas; … - In: Renewable Energy 67 (2014) C, pp. 242-251

The installation of small and medium-size wind turbines on the rooftops of high buildings has been often suggested by architects and project developers as a potential solution for achieving sustainable energy in building design. In such locations, however, because of the presence of buildings...

Persistent link: https://www.econbiz.de/10010805774

Study of the influence of imposed turbulence on the asymptotic wake deficit in a very long line of wind turbines

Breton, S.-P.; Nilsson, K.; Olivares-Espinosa, H.; … - In: Renewable Energy 70 (2014) C, pp. 153-163

search for an asymptotic wake deficit state. Calculations are performed using EllipSys3D, a CFD code that solves the Navier …

Persistent link: https://www.econbiz.de/10010805911

Wind tunnel and numerical study of a small vertical axis wind turbine

Howell, Robert; Qin, Ning; Edwards, Jonathan; Durrani, … - In: Renewable Energy 35 (2010) 2, pp. 412-422

and two- and three-dimensional unsteady computational fluid dynamics (CFD) models were generated to help understand the …

Persistent link: https://www.econbiz.de/10010806127

Computational analysis of performance and flow investigation on wells turbine for wave energy conversion

Dhanasekaran, T.S.; Govardhan, M. - In: Renewable Energy 30 (2005) 14, pp. 2129-2147

Wells turbine is a self-rectifying airflow turbine capable of converting pneumatic power of the periodically reversing air stream in oscillating water column into mechanical energy. This paper reports the computational analysis on performance and aerodynamics of Wells turbine with the NACA 0021...

Persistent link: https://www.econbiz.de/10010806167