Affiliation of Author(s):College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing, 210016

Teaching and Research Group:High Speed Wind tunnel Laboratory(HSWL)

Journal:AIAA Journal

Place of Publication:American Institute of Aeronautics and Astronautics, Inc.

Funded by:National Natural Science Foundation of China

Key Words:Novel Inducement to Unstart; Modular Hypersonic Inlet

Abstract:The parallel modular inlet is a common configuration in a strutjet engine of the rocket-based combined-cycle hypersonic vehicle. To study the flow interaction between two adjacent inlets, the flowfield in a parallel modular hypersonic inlet model that contains two abreast identical modules at a design point of Mach 6 is studied experimentally. The current study examines the flow interaction between two modules when one module is in a state of unstart. The results indicate that the unstart of module 1 can lead to the unstart of the adjacent module 2, and the accompanying process of disturbance propagation includes four typical stages, known as “double start”, “single start”, “transitional stage”, and “double unstart.” Different from the common unstart mode, which is related to the internal flowfield, the unstart process of module 2 is primarily induced by the external flow disturbance derived from the unstart of the module 1, which represents a novel inducement to the unstart of a hyper

Indexed by:Journal paper

Document Code:http://dx.doi.org/10.2514/1.J057352

Discipline:Engineering

First-Level Discipline:Aeronautical and Astronautical Science and Technology

Document Type:J

Number of Words:7091

ISSN No.:0001-1452

Translation or Not:no

Date of Publication:2019-01-01

Correspondence Author:Wang Chengpeng

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