Hybrid rocket engine (HRE) performance is dependent on fuel/oxidizer selection and fuel grain geometry. A literature review was performed to identify key trends findings related the application of additive manufacturing (AM) systems for HREs. The effects complex combustion port geometries, embedded structures, end-burning systems, along with use metallic additives, turbulators, diaphragms, gel-...

Wild rocket [Diplotaxis tenuifolia (L.) DC.] belongs to the Brassicaceae family and has its origin in the Mediterranean region. The effect of conventional and integrated cultivation practices on the nutritional properties and benefits of wild rocket [Diplotaxis tenuifolia (L.) DC.] were studied. Bioactive molecules content (vitamin C, quercetin, lutein), antioxidant properties and bioactivity o...

T H E engineering fundamentals, potentialities and problems associated with the alapli,cat'ion .of nuclear energy to rocket propulsion ,have been .reporte.d. 3,4,s,~1,24,2~,2~ Work on nuclear rocket propulsion 'has been underway at the Los Alamos Scientific LaSoratory for a number .o,f years under the code name Project Rover. ~ An inherent advantage of nuclear prop.ulsion is t'he unlimited ener...

This paper reports on a small pilot project undertaken during May 2000 at the Department of Information Science, Loughborough University. The study considers student and staff evaluation of two electronic reader products which are available for purchase in the United Kingdom – NuvoMedia’s Rocket eBook (hardware and software) and Glassbook Inc’s Glassbook (software). As the paper concludes, alth...

The effect of Alumina nanoparticle size on thermophysical properties, heat transfer performance and pressure loss characteristics of Aviation Turbine Fuel (ATF)-Al2O3 nanofluids is studied experimentally for the proposed application of regenerative cooling of semi-cryogenic rocket engine thrust chambers. Al2O3 particles with mean diameters of 50 nm or 150 nm are dispersed in ATF. At 50C and 0.3...

Rockets are the only direct anthropogenic emission sources into the upper atmosphere. Gaseous rocket emissions include CO, N2, H2, H2O, and CO2, while solid rocket motors (SRM) additionally inject signi¦cant amounts of aluminum oxide (Al2O3) particles and gaseous chlorine species into the atmosphere. These emissions strongly perturb local atmospheric trace gas and aerosol distributions. Here, t...

In this paper we consider some practical applications of model reduction methods in unstable gas turbine and rocket combustion. We explore a set of promising methods for reducing computational burden in large scale LES calculations of unsteady turbulent combustion, as well as define scenarios in which model reduction can be advantageous. Three combustors will be considered here, that have been ...

Recent interest in open source instruction set architecture (ISA) such as RISC-V has opened new horizons for computer systems research across operating systems, compilers, and hardware architectures. One fundamental aspect catalyzing these innovations is the ability to emulate a complete system. This allows researchers evaluate their ideas on real hardware without the hassle of building infrast...

In this paper, Computational Fluid Dynamics technique and numerical analysis is used to investigate the rocket thrust chamber cooling characteristics. The scope of the investigation involves the study of effect of aspect ratio (height/width) on the heat transfer characteristics of coolant channel. Steady state pressure based analysis of semi cryogenic thrust chamber regenerative cooling channel...