Unsteady CFD simulation of an entire gas turbine high-spool

We present an approach for the numerical prediction of the full engine performance and the assessment of multi-component behavior. In this approach, multiple components of a gas turbine are solved with different CFD solvers, each optimized for its assigned task. The solvers are executed simultaneously and during the computation exchange flow data at the interfaces. This enables efficient and accurate simulation of the entire gas turbine. We have developed a coupling software that enables multi-code/multi-physics simulations to perform seamlessly. In this paper, we will present the approach of multi-code simulations, describe the necessary interface and boundary conditions and demonstrate the value of integrated multi-code simulations for the assessment for multi-component effects. Finally, we will show and demonstrate the possibility of full engine simulations using CFD.