Showing papers in "Journal of Propulsion and Power in 2021"
TL;DR: In this article, an experimental study of a rotating detonation engine (RDE) operating with natural gas and air at elevated chamber pressures and air preheat temperatures was conducted to quantify its performance.
Abstract: An experimental study of a rotating detonation engine (RDE) operating with natural gas and air at elevated chamber pressures and air preheat temperatures was conducted to quantify its performance a...
26 citations
TL;DR: In this paper, a computational and experimental study was conducted on nozzle geometries for rocket application rotating detonation engines (RDEs), including a nozzleless blunt body typically em...
Abstract: A computational and experimental study was conducted on nozzle geometries for rocket application rotating detonation engines (RDEs). Three geometries, including a nozzleless blunt body typically em...
19 citations
TL;DR: In this paper, the results of a rotating detonation engine rocket sled test demonstration on a 127mm gauge rail at 100m long high-speed running track test equipment to evaluate the thrust pe...
Abstract: This Paper presents the results of a rotating detonation engine rocket sled test demonstration on a 127 mm gauge rail at 100 m long high-speed running track test equipment to evaluate the thrust pe...
14 citations
TL;DR: The gasification process of a low-melting fuel (polypropylene) in a high-temperature flow of inert gas (nitrogen) has been studied experimentally, implying the application to solid fuel ramjets as mentioned in this paper.
Abstract: The gasification process of a low-melting fuel (polypropylene) in a high-temperature flow of inert gas (nitrogen) has been studied experimentally, implying the application to solid-fuel ramjets. Th...
13 citations
TL;DR: Electric aircraft propulsion is a growing research area that looks into achieving propulsion through fully electric or hybrid electric systems while achieving low CO2 emissions.
Abstract: Electric aircraft propulsion is a growing research area that looks into achieving propulsion through fully electric or hybrid electric systems while achieving low CO2 emissions. The system-level be...
13 citations
TL;DR: In this article, the performance of a modular, 150-lbf-class rotating detonation rocket engine (RDRE) was measured with three gaseous fuels (methane, ethane, and ethylene).
Abstract: The performance (specific impulse, Isp) of a modular, 150-lbf-class rotating detonation rocket engine (RDRE) was measured with three gaseous fuels (methane, ethane, and ethylene) and gaseous oxygen...
12 citations
TL;DR: The overall propulsion efficiency for ion-mode electrospray thrusters has been predicted to be as high as 90%; however, experimental measurements currently fall far short of these predictions as mentioned in this paper.
Abstract: The overall propulsion efficiency for ion-mode electrospray thrusters has been predicted to be as high as 90%; however, experimental measurements currently fall far short of these predictions. Furt...
12 citations
TL;DR: In this paper, the need for rapid response power generation device on aircraft has been discussed, and current power generators consume a large portion of the aircraft's usable volume, and they are also extremely he...
Abstract: There has been a recent need for rapid response power generation device on aircraft. Current power generators consume a large portion of the aircraft’s usable volume, and they are also extremely he...
11 citations
TL;DR: In this article, an ionic liquid electrospray thruster (ILET) for rapidly expanding micro-/nanosatellites is presented, where ILETs with high-density array emitters are fabricated.
Abstract: It has been urgently required to develop ionic liquid electrospray thruster (ILET) for rapidly expanding micro-/nanosatellites. In this work, ILETs with high-density array emitters are fabricated t...
9 citations
TL;DR: In this paper, an approach for the modeling of the entrainment in the numerical simulation of the internal ballistics of hybrid rocket engines with paraffin-based fuels is presented.
Abstract: This work presents a novel approach for the modeling of the entrainment in the numerical simulation of the internal ballistics of hybrid rocket engines with paraffin-based fuels. This model, couple...
9 citations
TL;DR: Scramjet engines are one of the most promising hypersonic airbreathing propulsion technologies for robust, efficient, and economical access to space.
Abstract: Scramjet engines are one of the most promising hypersonic airbreathing propulsion technologies for robust, efficient, and economical access to space. Multi-objective design optimization has been co...
TL;DR: The impact on range and endurance of increasing electrical loads on aircraft and burgeoning interest in all-electric aircraft are driving a need for more efficient replacements for engine-driven me... as mentioned in this paper.
Abstract: The impact on range and endurance of increasing electrical loads on aircraft and burgeoning interest in all-electric aircraft are driving a need for more efficient replacements for engine-driven me...
TL;DR: The performance of a three-channel, 100-kW nested Hall thruster was evaluated on xenon propellant for total powers up to 102kW as mentioned in this paper, and the thruster demonstrated stable operation in all seven available channels.
Abstract: The performance of a three-channel, 100-kW nested Hall thruster was evaluated on xenon propellant for total powers up to 102 kW. The thruster demonstrated stable operation in all seven available ch...
TL;DR: In this article, computational fluid dynamics was used to study the flow through a scaled, mixed-compression, high-speed inlet with a rotating cowl at Mach 4.0 conditions.
Abstract: Computational fluid dynamics was used to study the flow through a scaled, mixed-compression, high-speed inlet with a rotating cowl at Mach 4.0 conditions. First, steady Reynolds-averaged Navier–Sto...
TL;DR: In this article, boundary layer ingestion has been used to reduce fuel consumption of the boundary layer in the propulsion system of a single-passenger aircraft, and it has attracted the attention of the aerospace community.
Abstract: Because of their potential reductions of fuel consumption, disruptive propulsion concepts such as boundary layer ingestion have lately earned the attention of the aerospace community. Because of th...
TL;DR: In this paper, the self-pulsation dynamics in a gas-centered swirl coaxial atomizer were investigated using water and air, and experiments were performed in the pulsation regime by precisely...
Abstract: Experimental investigations on the self-pulsation dynamics in a gas-centered swirl coaxial atomizer are conducted using water and air. Experiments are performed in the pulsation regime by precisely...
TL;DR: An electrospray thruster designed for nanosatellites is introduced in this paper, which has a compact size featuring a passive propellant transport method through the use of porous materials.
Abstract: An electrospray thruster designed for nanosatellites is introduced in this paper. The thruster has a compact size featuring a passive propellant transport method through the use of porous materials...
TL;DR: In this article, two types of combustion instabilities were observed in a multi-injector research combustor with liquid oxygen and liquefied natural gas (LOX/LNG) propellants operating at conditions similar to an u...
Abstract: Two types of combustion instabilities were observed in a multi-injector research combustor with liquid oxygen and liquefied natural gas (LOX/LNG) propellants operating at conditions similar to an u...
TL;DR: In this paper, the aerodynamic analysis and design of a hubless, contra-rotating, rim-driven fan (RDF) device were discussed, as well as its application in marine propulsion.
Abstract: This paper discusses the aerodynamic analysis and design of a novel, hubless, contra-rotating, rim-driven fan (RDF) device. Rim-driven thruster technology has been used for marine propulsion for de...
TL;DR: Paraffin-based fuels incorporating solid amine boranes are investigated in this article to identify formulations suitable for use as hypergolic hybrid rocket propellants, their ignition delays are measured followi...
Abstract: Paraffin-based fuels incorporating solid amine boranes are investigated to identify formulations suitable for use as hypergolic hybrid rocket propellants. Their ignition delays are measured followi...
TL;DR: A cylindrical rotating detonation engine with multiple injector holes on the combustor side wall for both propellant injection and cooling by injector gas flow was designed and tested in this paper.
Abstract: A cylindrical rotating detonation engine (24 mm diameter) with multiple injector holes on the combustor side wall for both propellant injection and cooling by injector gas flow was designed and te...
TL;DR: In this paper, an experimental study was performed on an ethylene/oxygen/air pulse detonation engine to examine the effect of frequency and spark delay time on the thrust output and efficiency.
Abstract: An experimental study was performed on an ethylene/oxygen/air pulse detonation engine to examine the effect of frequency and spark delay time on the thrust output and efficiency. Reactants were mix...
TL;DR: Gaseous hydrogen/liquid oxygen turbulent shear flames were subjected experimentally to both pressure antinode (PAN) and pressure node (PN) transverse acoustic forcing as a function of the g...
Abstract: Gaseous hydrogen/liquid oxygen turbulent shear coaxial flames were subjected experimentally to both pressure antinode (PAN) and pressure node (PN) transverse acoustic forcing as a function of the g...
TL;DR: In this paper, a bluff-body stabilized turbulent premixed flames represent a challenging canonical configuration for computational simulation and validation, and past simulation results from many research groups on the configuration have been published.
Abstract: Bluff-body stabilized turbulent premixed flames represent a challenging canonical configuration for computational simulation and validation. Past simulation results from many research groups on the...
TL;DR: In this article, two-fluid atomization of highly viscous and shear thinning non-Newtonian fluids must overcome the viscous resistance, and conventional air-blast atomizers address this requirement by operating at highe...
Abstract: Two-fluid atomization of highly viscous and shear thinning non-Newtonian fluids must overcome the viscous resistance. Conventional air-blast atomizers address this requirement by operating at highe...
TL;DR: In this paper, the influence of liquid jet fuel properties on flame lean blowout (LBO) using an annular coflow spray burner was investigated, and the results showed that inconsistent co-flow behavior has a negative effect on LBO performance.
Abstract: This paper investigates the influence of liquid jet fuel properties on flame lean blowout (LBO) using an annular coflow spray burner. This behavior has been studied before; however, inconsistent co...
TL;DR: The electron-cyclotron resonance thruster with magnetic nozzle relies on two successive energy transfer processes: first from electromagnetic energy to electron thermal energy, facilitated by a coupler as mentioned in this paper.
Abstract: The electron-cyclotron resonance thruster with magnetic nozzle relies on two successive energy transfer processes: first from electromagnetic energy to electron thermal energy, facilitated by a cou...
TL;DR: In this article, two representative hybrid rocket injector designs, a single port and an axial showerhead design, were examined experimentally to determine the comparative influence on the development of the two designs.
Abstract: In this work, two representative hybrid rocket injector designs, a single-port and an axial showerhead design, were examined experimentally to determine the comparative influence on the development...