Results 11 to 20 of about 1,472 (179)

Numerical Investigation of Contact Burning in an Air-Breathing Continuous Rotating Detonation Engine

International Journal of Aerospace Engineering, 2022
Three-dimensional (3D) numerical simulations of a continuous rotating detonation engine are carried out with an unsteady Reynolds-averaged Navier-Stokes solver.
Dapeng Xiong, Mingbo Sun, Haoyang Peng, Yanan Wang, Yixin Yang, Hongbo Wang, Jiangfei Yu, Zhenguo Wang   +7 more
doaj   +2 more sources

Effects of Annular Combustor Width on the Ethylene-Air Continuous Rotating Detonation

International Journal of Aerospace Engineering, 2020
The realization and stable operation of Continuous Rotating Detonation (CRD) in the annular combustor fueled by hydrocarbon-air are still challenging.
Weijie Fan, Shijie Liu, Jin Zhou, Haoyang Peng, Siyuan Huang   +4 more
doaj   +2 more sources

Numerical investigation on the interactions between rotating detonation wave complex and planar turbine cascade

Energy Science & Engineering, 2023
Due to pressure gain characteristics, the rotating detonation combustor (RDC) can be integrated into gas turbines by further improving the system's performance. The matching of unsteady flows in the RDC and turbine is a key challenge.
Qun Li, Yuwen Wu, Yiqing Xia, Xiang Li, Chunsheng Weng   +4 more
doaj   +2 more sources

Molten‐Volcanic‐Ash‐Phobic Thermal Barrier Coating based on Biomimetic Structure

Advanced Science, Volume 10, Issue 10, April 5, 2023., 2023
The laser‐ablated (Gd0.9Yb0.1)2Zr2O7 (GYbZ) pellet and plasma spray physical vapor deposition GYbZ coating demonstrate volcanic ash phobicity at 1200 °C. The results highlight that the biomimetic hierachical structure consisting of microconical papillae with aspect ratio of 1.10 ± 0.15 and regularly distributed nanoparticles makes great contributions ...
Yiqian Guo, Wenjia Song, Lei Guo, Xinxin Li, Wenting He, Xudong Yan, Donald B. Dingwell, Hongbo Guo   +7 more
wiley   +1 more source

Experimental study on the rotating detonation engine based on a gas mixture

Frontiers in Energy Research, 2023
A direct connection test of a rotating detonation engine was conducted. The outer and inner diameters of the annular combustors were 206 and 166 mm, respectively.
Sainan Xue, Xin Zhang, Jianlu Yang, Denghang Liu, Hu Ma, Changsheng Zhou   +5 more
doaj   +1 more source

Experimental study on the effect of injection pressure ratio on the propagation characteristics of hydrogen rotating detonation waves

Energy Science &Engineering, Volume 10, Issue 10, Page 3839-3853, October 2022., 2022
To study the effects of the ratio of air injection pressure to hydrogen injection pressure (pR = pA/pH) on the propagation characteristics of rotating detonation waves (RDWs) and the working range of continuous rotating detonation engines (CRDEs), experiments were conducted under different injection pressure ratios and air mass flow rates with hydrogen
Minxuan Wu, Qiaodong Bai, Jiaxiang Han, Shijian Zhang, Shengnan Cui, Hao Chen, Chunsheng Weng   +6 more
wiley   +1 more source

Experimental Investigation on Two-Phase Rotating Detonation Fueled by Kerosene in a Hollow Directed Combustor

Frontiers in Energy Research, 2022
The operating characteristic of two-phase rotating detonation fueled by kerosene in a hollow combustor with the isolation section is experimentally studied. When the air mass flow rate is 1.5 kg/s, the equivalence ratio is 0.98, and the total temperature
Sainan Xue, Zhuojun Ying, Hu Ma, Changsheng Zhou   +3 more
doaj   +1 more source

Low-Order Model for Detonation Velocity Suppression in Rotating Detonation Combustors

AIAA SCITECH 2023 Forum, 2023
A Rotating Detonation Combustor (RDC) is a novel pressure gain combustion device, in which a detonation wave processes steadily around an annulus. It has been experimentally observed that detonation waves in the RDC propagate slower than the idealized Chapman- Jouguet (CJ) speed (as low as approximately 60%) and with lower than expected peak pressures.
Barnouin, Provence, Bach, Eric, Gutmark, Ephraim J., Paschereit, Christian O., Bohon, Myles   +4 more
openaire   +1 more source

Hybrid Modeling Method of SDR Interstage Valve Based on Mechanism and Data‐Driven

International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022
Variable‐throat adjustment is the most practical flow regulation method of solid ducted rocket ramjet (SDR). The high‐fidelity mathematical model of the interstage valve is the basis for realizing high‐precision gas flow and thrust regulation. In this paper, the complex effect of gas was divided into load and throat deformation effect.
Hongfu Wang, Qinghua Zeng, Xianhe Chen, Zongyu Zhang, Weide Liu, Jun-Wei Li   +5 more
wiley   +1 more source

Biogas Production and Applications in the Sustainable Energy Transition

Journal of Energy, Volume 2022, Issue 1, 2022., 2022
Biogas is competitive, viable, and generally a sustainable energy resource due to abundant supply of cheap feedstocks and availability of a wide range of biogas applications in heating, power generation, fuel, and raw materials for further processing and production of sustainable chemicals including hydrogen, and carbon dioxide and biofuels.
Moses Jeremiah Barasa Kabeyi, Oludolapo Akanni Olanrewaju, Antonio Messineo   +2 more
wiley   +1 more source