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- W3120897833 abstract "Developmental flight testing on the United States Marine Corps (USMC) CH-53K King Stallion heavy lift program identified significant engine integration technical challenges including Exhaust Gas Reingestion (EGR), engine compartment cooling and engine exhaust impingement on the aircraft’s fuselage. These challenges limited the mission envelope and threatened to delay the CH-53K King Stallion heavy lift helicopter program. Immediate resolution of these issues was required for the USMC to proceed with the planned deployment of CH-53K. The CH-53K all digital design, advanced computer modeling techniques, rapid prototyping and flight test data reduction methodologies were brought together by the U. S. Navy and industry team to solve these problems and progress the program. This paper discusses the work conducted in parallel and immediately after the Computational Fluid Dynamics (CFD) modeling validation effort; CFD was deployed in a massive way in order to examine the air vehicle impacts of different EGR solution proposals at both critical EGR flight conditions as well as across the CH-53K flight envelope. CFD data extractions, focused on EGR attributes and engine integration risks, were then used in a multi-disciplinary systems engineering trade study that weighted pertinent air vehicle impacts, including, e. g. , aircraft performance, weight, engine life, cost of implantation and human factors. The system engineering score was used to downselect high confidence aircraft configurations for flight test assessment." @default.
- W3120897833 created "2021-01-18" @default.
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- W3120897833 date "2021-01-04" @default.
- W3120897833 modified "2023-10-03" @default.
- W3120897833 title "The CH-53K Exhaust Gas Reingestion Trade Study: Using a Tiered CFD Modeling Approach to Solving the EGR Challenges on the CH-53K King Stallion" @default.
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- W3120897833 doi "https://doi.org/10.2514/6.2021-0031" @default.
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