Adjoint-Based Mesh Adaptation and Shape Optimization for Simulations with Propulsion

Nemec, Marian ; Rodriguez, David ; Aftosmis, Michael

关键词: COMPUTATIONAL GRIDS;    ADJOINTS;    SHAPE OPTIMIZATION;    PROPULSION;    ENGINE INLETS;    MASS FLOW RATE;    PRESSURE DISTRIBUTION;    NOISE REDUCTION;    SONIC BOOMS;    NOZZLE DESIGN;    MATHEMATICAL MODELS;    FLIGHT SIMULATION;   

RP-ID  :  ARC-E-DAA-TN69972

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Objectives: Reliable evaluation of mass flow rates through permeable boundaries - Estimate and control discretization error- Consider both computational domain outflow and inflow- Applicable to simulating propulsion-system effects, as well as secondary flow paths -Explore feasibility of handling more general outputs at domain boundaries. Design optimization subject to mass-flow-rate constraints - Improve aerodynamic performance and reduce noise due to sonic boom - Control discretization error in design space to improve confidence in final designs.