论文信息 - Numerical Studies of a Single Hydrogen/Air Gas Turbine Fuel Nozzle

Numerical Studies of a Single Hydrogen/Air Gas Turbine Fuel Nozzle

A numerical study of a Hydrogen/Air fuel nozzle was conducted using the National Combustion Code (NCC). The numerical results are for a single -fuel nozzle injection element extracted from a full -scale fuel nozzle design. The prototype full -scale fuel nozzle consists of 25 Hydrogen/Air injection elements, each with two cross injection hydrogen ori fices. Detailed results about the mixing of fuel -air, flame structures and combustion species are presented. As part of the investigation, the effects related to the selection of wall function for turbulent flow near the wall were investigated. Two types of wall functions, a standard wall function and a generalized wall function, were evaluated. This numerical information will assist an ongoing experimental study of Hydrogen/Air fuel nozzle concepts.

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