Numerical zooming between the NPSS version 1 and a 1-dimensional meanline design analysis code

摘要

Within NASA's High Performance Computing and Communication program, NASA-Glenn is developing an environment for the analysis/design of aircraft engines called the Numerical Propulsion System Simulation (NPSS). NPSS focuses on the integration of multiple disciplines such as aerodynamics, structures, and heat transfer along with the concept of numerical zooming between zero-dimensional and 1-, 2-, and 3-D component engine codes. In addition, the NPSS is refining the computing and communication technologies necessary to capture complex physical processes in a timely and cost-effective manner. The vision for NPSS is to create a 'numerical test cell' enabling full engine simulations overnight on cost-effective computing platforms. Of the different technology areas that contribute to the development of the NPSS Environment, the subject of this paper is a discussion on numerical zooming between engine components. A description is presented here of successfully zooming 1-D (row-by-row) high pressure compressor results back to a NPSS engine zero-dimensional simulation and a discussion of the results illustrated using an advanced data visualization tool. This type of high fidelity system-level analysis, made possible by the zooming capability of the NPSS, will greatly improve the fidelity of the engine system simulation and enable engine 'prevalidation'.