Optimizing the NACA0015 airfoil which is widely applied in small-scale vertical axis wind turbine to make it has a better aerodynamic performance. In the optimization process, using CST parameterization method to perturb the airfoil geometry, the thickness and camber of the airfoil are selected as the constraint, and the value of the maximum tangential force coefficient is chosen as the objecti...

A gradient-based Newton–Krylov algorithm for aerodynamic shape optimization is applied to lift maximization of a multi-element landing configuration. The governing flow equations are the two-dimensional compressible Navier–Stokes equations in conjunction with a one-equation transport turbulence model. The objective function gradient is computed via the discrete-adjoint method. The design exampl...

Safety issues in experimental studies of gas-lift wells are considered, methods well research analyzed, and functions approximation the main characteristics a analyzed. It is shown that order to ensure safety testing obtain most accurate results, it advisable use probabilistic measurements cost resources allocated for research. Requirements have been set sequence by whom suspension operations s...

An exploratory study is performed to investigate the use of a time-dependent discrete adjoint methodology for design optimization of a high-lift wing configuration augmented with an active flow control system. The location and blowing parameters associated with a series of jet actuation orifices are used as design variables. In addition, a geometric parameterization scheme is developed to provi...

DESIREH stands for “Design, Simulation and Flight Reynolds Number testing for advanced High Lift Solutions”. This EC-funded project is aimed to improve the aerodynamic design and simulation methodology of high-lift systems. The investigations made include the acceleration of CFD simulations, the improvement of enhanced optical measurement methods in cryogenic environment, and the assessment of ...

Unmanned aerial vehicles (UAVs) performing their operations for a long time have been attracting much attention in military and civil aviation industries for the past decade. The applicable field of UAV is changing from the military purpose only to the civil one. Because of their low operation cost, high reliability and the necessity of various application areas, numerous development programs h...