A methodology for obtaining fuzzy rule-based models from uncertain data is proposed. The granularity of the linguistic discretization is decided with the help of a new estimation of the mutual information between ill-known random variables, and a combination of boosting and genetic algorithms is used for discovering new rules. This methodology has been applied to predict whether the coating of ...

The analysis of impeller shape performance was carried out with the SST (Shear-Stress Transport) model coupled with the streamline curvature turbulence model. This model combines the advantages from the κ−ε and κ−ω models, ensuring proper relation between turbulent stress and turbulent kinetic energy and allowing accurate and robust prediction of the impeller blade flow separation. The Multiple...

Vertical axis wind turbine (VAWT) blades undergo dynamic separation due to the large angle of attack variation they experience during a turbine rotation. The flow over a single blade was modeled using a sinusoidally pitching and surging airfoil in a constant free stream flow at a mean chord Reynolds number of 10. Two-dimensional, time resolved velocity fields were acquired using particle image ...

In this study, the performance of a centrifugal pump is investigated by adding polyacrylamide (PAM) polymer over the working fluid which is tap water in this case. PAM is a long chain polymer that leads to reduce the wall shear stress and drag in a turbulent fluid. Three different blade profiles including radial, straight backward and circular backward have been examined. For this purpose, a ce...

s of papers 17 Processing and Products Meat Quality and Student Competition 66 Variation in broiler breast meat tenderness due to sample location. R. K. Gundelly*, R. Xiong, J-F.C. Meullenet, and C. M. Owens, University of Arkansas, Fayetteville, AR. Researchers and industry personnel often use instrumental methods to measure poultry meat tenderness. Although a variety of methods are used, typi...

The rheological behaviour of a dense granular bed under dynamic conditions is investigated by simulating flow in the FT4 powder rheometer using Discrete Element Method. distribution prevailing stresses and strain rates bed, their dependence on material properties blade operational conditions, are analysed. shear stress was found to be approximately constant radial direction along but dissipates...

precision agriculture is continuously trying to address the sources and factors affecting the in-field variability and taking appropriate managerial decisions. one of the popular research focuses in the recent three decades has been on the development of new approaches to making yield variability maps. advancement in development of sensors and the importance of quality factor in high value crop...