*Central Aerohydrodynamic Institute (TsAGI) Zhukovsky street, 1, 140185 Zhukovsky, Moscow Region, Russian Federation, Email: [email protected] **Central Aerohydrodynamic Institute (TsAGI) Zhukovsky street, 1, 140185 Zhukovsky, Moscow Region, Russian Federation, Email: [email protected] ***NUMECA International, Avenue Franklin Roosevelt, 5, 1050 Brussels, Belgium, Email: charles.hirsch@num...

The article describes the results from research and development of a cantilever microturbine designed for ORC power plants. main objective paper was to compare different types rotor seals their effect on turbine efficiency forces. stage numerical models used in CFD system NUMECA FINE/Turbo are briefly described. compared with values obtained measurements previous simulations. show relatively li...

In the present study, multi-objective optimization of Forward-Curved (FC) blade centrifugal fans is performed in three steps. In the first step, Head rise (HR) and the Head loss (HL) in a set of FC centrifugal fan is numerically investigated using commercial software NUMECA. Two meta-models based on the evolved group method of data handling (GMDH) type neural networks are obtained, in the secon...

The article contains the results of validation of the numerical computational models of the uncooled turbines of gas turbine plants created in the software suite NUMECA. The findings of the study of impact of the computational mesh dimension, account of the pre-path cavities on the design characteristics of turbines by modeling are represented in this article. As a result, there have been devel...

In this paper, lift and drag coefficients were numerically investigated using NUMECA software in a set of 4-digit NACA airfoils. Two metamodels based on the evolved group method of data handling (GMDH) type neural networks were then obtained for modeling both lift coefficient (CL) and drag coefficient (CD) with respect to the geometrical design parameters. After using such obtained polynomial n...

Modeling and multi-objective optimization of centrifugal pumps is performed at three steps. At the first step, η and NPSHr in a set of centrifugal pump are numerically investigated using commercial software NUMECA. Two metamodels based on the evolved group method of data handling (GMDH) type neural networks are obtained, at the second step, for modeling of η and NPSHr with respect to geometrica...

In the present study, multi-objective optimization of 4-digit NACA airfoils is performed at three steps. At the first step, lift (CL) and drag (CD) coefficient in a set of 4-digit NACA airfoils are numerically investigated using commercial software NUMECA. Two meta-models based on the evolved Group Method of Data Handling (GMDH) type neural networks are obtained, at the second step, for modelin...

in this paper, lift and drag coefficients were numerically investigated using numeca software in a set of 4-digit naca airfoils. two metamodels based on the evolved group method of data handling (gmdh) type neural networks were then obtained for modeling both lift coefficient (cl) and drag coefficient (cd) with respect to the geometrical design parameters. after using such obtained polynomial n...

In this paper, the fine/turbo software of NUMECA was used. Based on three-dimensional steady Reynolds averaged N-S equations, S-A turbulence model used to calculate relationship between tip clearance and diameter impeller, which were δ = 0.1%, 0.3%, 0.5% 0.7% respectively. The flows four water jet axial flow pumps with different clearances numerically studied at rates. results indicate that siz...