Computational study on flow through truncated conical plug nozzle with base bleed

作     者：Prasanth P.Nair Abhilash Suryan Heuy Dong Kim 

作者机构：Department of Mechanical EngineeringCollege of Engineering TrivandrumTrivandrum 695016India Department of Mechanical EngineeringAndong National UniversityAndong 760749Republic of Korea 

出 版 物：《Propulsion and Power Research》 (推进与动力（英文）)

年 卷 期：2019年第8卷第2期

页      面：108-120页

核心收录：

学科分类：080704[工学-流体机械及工程] 08[工学] 0820[工学-石油与天然气工程] 0817[工学-化学工程与技术] 080103[工学-流体力学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0827[工学-核科学与技术] 0802[工学-机械工程] 0703[理学-化学] 0825[工学-航空宇航科学与技术] 0801[工学-力学（可授工学、理学学位）] 0823[工学-交通运输工程] 

主　　题：Plug nozzle Aerospike nozzle Advanced rocket nozzle Reynolds-averaged Navier-Stokes(RANS) Base pressure Coefficient of thrust Base bleed Secondary flow 

摘      要：Conical plug nozzle and truncated conical plug nozzle are advanced rocket nozzles suitable for use as altitude compensating *** this study flow through the conical plug and truncated conical plug nozzles are numerically simulated to first validate with experimental data and then to compare the performance when a base bleed is *** numerical analysis has considered two-dimensional axisymmetric ***-averaged NavierStokes equations are solved with two equation shear stress transport k-ω turbulence *** the validation of the plug nozzle,flow features and wall pressure along the length of the nozzle is taken for different nozzle pressure *** the validation of truncated plug nozzle,flow features and base pressures at various nozzle pressure ratios are *** base bleed is taken as 2%of the inlet mass flow *** comparison of results shows that the introduction of base bleed helps to compensate for the loss of thrust due to conical plug nozzle truncation.