Results 11 to 20 of about 32,664 (261)

Dynamic Numerical Simulation of Hybrid Rocket Motor with HTPB-Based Fuel with 58% Aluminum Additives

Aerospace, 2022
The addition of aluminum (Al) to the fuel is an effective way to increase the regression rate of hybrid rocket motors (HRMs). Due to its high regression rate, the impact of the regression of combustion surface on the performance of HRMs cannot be ignored.
Hui Tian, Xiangyu Meng, Hao Zhu, Chengen Li, Lingfei He, Guobiao Cai   +5 more
doaj   +1 more source

Estimation of Real-World Fuel Consumption Rate of Light-Duty Vehicles Based on the Records Reported by Vehicle Owners

Energies, 2021
Private vehicle travel is the most basic mode of transportation, so that an effective way to control the real-world fuel consumption rate of light-duty vehicles plays a vital role in promoting sustainable economic growth as well as achieving a green low ...
Isabella Yunfei Zeng, Shiqi Tan, Jianliang Xiong, Xuesong Ding, Yawen Li, Tian Wu   +5 more
doaj   +1 more source

Solid-Fuel Regression Rate for Standard-Flow Hybrid Rocket Motors

Journal of Thermal Science and Technology, 2012
Marxman's diffusion-limited analysis of hybrid rocket combustion has been often used to investigate various combustion problems in hybrid rocket motors.
Takakazu MORITA, Saburo YUASA, Shigeru YAMAGUCHI, Toru SHIMADA   +3 more
doaj   +1 more source

Viscosity and Regression Rate of Liquefying Hybrid Rocket Fuels

Journal of Propulsion and Power, 2017
The combustion behavior of paraffin-based hybrid rocket fuels with gaseous oxygen as an oxidizer has been analyzed in detail. Regression rate tests have been done in a two-dimensional radial microburner at the DLR, German Aerospace Center and at the Space Propulsion Laboratory.
Kobald, Mario, Schmierer, C., Ciezki, H., Schlechtriem, S., Toson, E., De Luca, T.   +5 more
openaire   +3 more sources

Combustion Characteristics of a Swirl-Radial-Injection Composite Fuel Grain with Applications in Hybrid Rockets

Aerospace, 2023
The combustion characteristics of a swirl-radial-injection composite fuel grain were experimentally and numerically investigated. This composite grain permits swirl-radial oxidizer injection based on three hollow helical blades, each having a constant ...
Ruoyan Wang, Xin Lin, Zezhong Wang, Kun Wu, Zelin Zhang, Jiaxiao Luo, Fei Li, Xilong Yu   +7 more
doaj   +1 more source

Visualization and Emission Spectra of Flames in Combustion Chamber of Swirling-Oxidizer-Flow-Type Hybrid Rocket Engines

Journal of Thermal Science and Technology, 2011
In order to clarify flame behavior in the combustion chamber of swirling-oxidizer-flow-type hybrid rocket engines, a small hybrid rocket engine with a large quartz glass window was fabricated to observe the inside of the combustion chamber from the front
Saburo YUASA, Tatsuya IDE, Miho MASUGI, Takashi SAKURAI, Noriko SHIRAISHI, Toru SHIMADA   +5 more
doaj   +1 more source

Fuel regression behavior of swirling-injection end-burning hybrid rocket engine

Journal of Fluid Science and Technology, 2019
Burning experiments were conducted to better understand the fuel regression behavior in a swirling-injection end-burning hybrid rocket engine using paraffin wax/gaseous oxygen propellant.
Takashi SAKURAI, Yuya OISHIGE, Kazuyuki SAITO   +2 more
doaj   +1 more source

Experimental Investigation on Combustion Characteristics of Hybrid Rocket Fuels with Multi-Angle Diverging Injector

International Journal of Turbomachinery, Propulsion and Power, 2020
Injection pattern of the oxidizer injected into the combustion chamber is a significant factor in evaluating the performance of a hybrid rocket. In the hybrid rocket combustion process, oxidizer flows over the solid fuel grain surface, leading to a ...
Pragya Berwal, Shelly Biswas
doaj   +1 more source

The Application of Computational Thermo-Fluid-Dynamics to the Simulation of Hybrid Rocket Internal Ballistics with Classical or Liquefying Fuels: A Review

Aerospace, 2019
The computational fluid dynamics of hybrid rocket internal ballistics is becoming a key tool for reducing the engine operation uncertainties and development cost as well as for improving experimental data analysis.
Giuseppe Daniele Di Martino, Carmine Carmicino, Stefano Mungiguerra, Raffaele Savino   +3 more
doaj   +1 more source

On the liquid layer instability process in hybrid rocket fuels

FirePhysChem, 2021
This work is focused on the study of the combustion mechanism of a class of fast-burning fuels, the so-called liquefying fuels, in hybrid rocket engines.
Anna Petrarolo, Mario Kobald
doaj   +1 more source