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International Journal for Numerical Methods in Engineering, Volume 123, Issue 23, Page 6000-6027, 15 December 2022., 2022 Abstract Nonlinear extensions to the active subspaces method have brought remarkable results for dimension reduction in the parameter space and response surface design. We further develop a kernel‐based nonlinear method. In particular, we introduce it in a broader mathematical framework that contemplates also the reduction in parameter space of ...
Francesco Romor +3 more
wiley +1 more source
Ramjet Compression System for a Hypersonic Air Transportation Vehicle Combined Cycle Engine
Energies, 2018 This report assesses the performance characteristics of a ramjet compression system in the application of a hypersonic vehicle. The vehicle is required to be self-powered and perform a complete flight profile using a combination of turbojet, ramjet and ...
Sasha Veeran +2 more
doaj +1 more source
Case Studies in Thermal Engineering, 2021 The supersonic mixing between the reactive injection with an airstream is an essential issue that determines the scramjet engine performance. The mixing and transient combustion processes under different equivalence ratios for both the transverse ...
Wubingyi Shen +3 more
doaj +1 more source
Pseudo-shock waves and their interactions in high-speed intakes [PDF]
, 2016 In an air-breathing engine the flow deceleration from supersonic to subsonic conditions takes places inside the isolator through a gradual compression consisting of a series of shock waves.
Gnani, F., Kontis, K., Zare-Behtash, H.
core +1 more source
Probabilistic constrained Bayesian inversion for transpiration cooling
International Journal for Numerical Methods in Fluids, Volume 94, Issue 12, Page 2020-2039, December 2022., 2022 Abstract To enable safe operations in applications such as rocket combustion chambers, the materials require cooling to avoid material damage. Here, transpiration cooling is a promising cooling technique. Numerous studies investigate possibilities to simulate and evaluate the complex cooling mechanism.
Ella Steins +3 more
wiley +1 more source
Numerical Investigation of Contact Burning in an Air‐Breathing Continuous Rotating Detonation Engine
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 Three‐dimensional (3D) numerical simulations of a continuous rotating detonation engine are carried out with an unsteady Reynolds‐averaged Navier‐Stokes solver. The second‐order upwind advection upstream splitting method and second‐order Runge‐Kutta method are used to discretize space and time terms, and detailed 9‐species 19‐step hydrogen‐oxygen ...
Dapeng Xiong +8 more
wiley +1 more source
International Journal of Thermofluids, 2022 Numerical investigation of Scramjet combustor is performed with the help of center lobed strut to act as a parallel fuel injector. The geometry of the combustor plays a major role to get the enhanced combustion performance in scramjet engine due to the ...
Kumari Ambe Verma +3 more
doaj +1 more source
Chemical Engineering Transactions, 2018 The purpose of this study is to understand the operation mode of computational fluid dynamics (CFD) parallel computing technology for non-equilibrium flow.
Lili Hong
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Some Key Issues in Hypersonic Propulsion
Energies, 2021 This paper summarizes and discusses some critical aspects of flying hypersonically. The first is the L/D (lift over drag) ratio determining thrust and that in turn depends on the slenderness Küchemann’s τ parameter.
Claudio Bruno, Antonella Ingenito
doaj +1 more source
Comprehensive Review of Emerging Missile Propulsion Technologies [PDF]
Hangkong bingqiPower system is a core factor influencing the performance of tactical missile. As conventional propulsion system, solid-rocket engine, turbojet engine, and sub-sonic combustion ramjet engines have become increasingly mature, and the technological ...
Ma Conghui, Shen Xin, Qin Fei, Sun Zhenhua
doaj +1 more source