Computational fluid dynamics (CFD) is one of the most emerging fields of fluid mechanics
used to analyze fluid flow situation. This analysis is based on simulations carried out on …

The complex-step derivative approximation and its application to numerical algorithms are
presented. Improvements to the basic method are suggested that further increase its …

This paper presents an adjoint method for sensitivity analysis that is used in an aero-
structural aircraft design framework. The aero-structural analysis uses high-fidelity models of …

The present study demonstrates the capabilities of a fluid/structure coupled computational
approach which consists of an unsteady three-dimensional Navier-Stokes flow solver, TFLO …

This paper presents the serial optimization as well as the parallelization of the TRAF code, a
3D multi-row, multi-block CFD solver for the RANS/URANS equations. The serial …

The air storage pressure of the compressed air energy storage system gradually decreases
during the energy release process. In order to make the turbine work efficiently in non …

In this paper, we propose an extension of the Harmonic Balance method for
threedimensional, unsteady, multi-stage turbomachinery problems modeled by the …

This paper presents a technique used to accelerate the convergence of unsteady
calculations of time-periodic flows to a periodic steady state. The basis of the procedure is …

A new integrated aero-structural design method for aerospace vehicles is presented. The
approach combines an aero-structural analysis solver, a coupled aero-structural adjoint …

This paper documents a fully turbulent discrete adjoint method for three-dimensional
multistage turbomachinery design. The method is based on a duality preserving algorithm …