In cooperation with other institutions, GRS adapts and validates the CFX code developed by ANSYS for LWR containment applications. In a severe accident scenario in a LWR large amounts of steam and hydrogen are released into the containment at different locations. To simulate the main phenomena relevant for accident scenarios within LWR containments models, especially the ones provided to CFX by...

An experimental and numerical investigation into the tip leakage flow of a turbine rotor is carried out using a particle image velocimetry (PIV) system and the commercial software ANSYS CFX 14.0. The specimen used in this work is a typical GE-E3 model with a new squealer tip design. The experimental data are used to create a turbulence model and numerical strategy. Through the validated turbule...

Partial depletion of the primary circuit during a postulated small break loss of coolant accident can lead to the interruption of one-phase flow natural circulation. In this case, the decay heat is removed from the core in the reflux-condenser mode. In case of the partial non-availability of the safety injection system, weakly borated condensate can accumulate in particular in the pump loop sea...

Abstract The main objective of this paper is to evaluate the aerodynamic performance a modified blended wing-bodied re-entry vehicle by computational fluid dynamics. This analysis examines airflow properties like pressure, density, and temperature under hypersonic flow. study wing model at different Mach speeds angles attack also included in research paper. All simulations are performed using d...

Labyrinth seal force estimates are important to the prediction of the stability of turbomachinery. The force prediction methods fall into several categories: experiments, bulk flow analysis, and finite volume analysis. Finite volume analysis can be split into two subcategories: selfdeveloped and commercial. In this research, a commercial computational fluid dynamics (CFD) program called ANSYSCF...

For better design and optimization of the heat exchanger (HX), forced convective transfer flow characteristics supercritical carbon dioxide (SCO2) in a water-cooled experimental counter-flow tube-in-tube HX were studied numerically with three-dimensional Reynolds-averaged Navier-Stokes equations shear stress transport (SST) turbulence model by using computational fluid dynamics method ANSYS CFX...