33th Congress of the International Council of the Aeronautical Sciences

05 - Propulsion

DEVELOPMENT OF THE LOW-COST AND LIMITED SPACE SEA-LEVEL RAM AIR TEST (RAT) MACH 0.8 SYSTEM

T.-G. Nguyen¹, Q.-H. Nghiem¹, Q.-H. Nguyen¹, N.-V. Nguyen¹, D.-L. Chu¹, P.-M. Nguyen¹; ¹Viettel Aerospace Institute, Vietnam

The low-cost and limited space sea-level RAT Mach 0.8 system design process is proposed and presented for both small turbojet engines and flight vehicle system development. Overall steps from requirements to the final RAT system layouts are addressed and discussed briefly. The main plenum chamber design optimization section is presented with the extensively using CFD as the analysis solver. The special treatments are performed on the guide vane aero-dynamical design for turning corner to minimize the turbulence and loss in order to match for the limited space. The diffuser, honeycomb and screen for plenum chamber are thoroughly considered and design for the customized length of plenum while maintaining the stability, uniform of flow and Mach 0.8 of exit. The proposed methodology shows the feasibility and effectivity of the low-cost and limited space sea-level SAT Mach 0.8 system for the small turbojet engines and flight vehicle system development.


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