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Aerodynamic response of a blade cascade to torsional excitation of one blade at subsonic and transonic velocities 叶片叶栅在亚声速和跨声速下对单叶扭转激励的气动响应
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.05.006
David Šimurda , Jiří Fürst , Josef Musil , Petr Šidlof , Jan Lepicovsky
The trend of increasing the power-to-weight ratios of aircraft turbofan engines and efficiency of steam turbines leads to designs with long and slender blades often operating at transonic flow conditions. Such blades are prone to undesirable and possibly destructive vibrations caused by engine-order excitation or induced by flow itself. To shed more light on this problem and to extend the existing knowledge, this paper presents experimental and numerical study on torsional mode vibration of one blade in a linear blade cascade of flat profiles. In this study, dynamic loading and pressure distributions were investigated at subsonic, supercritical and transonic flow regimes while the blade was kinematically excited by a motor and shaft mechanism at reduced frequencies up to k = 0.47. Dynamic flow structure development was documented and analyzed based on numerical simulations. Furthermore, dependence of energy transfer over an oscillation cycle on frequency and exit Mach number was investigated. Results revealed significant hysteresis in the flow field configuration particularly at supercritical and transonic cases. Hysteresis is manifested namely by different development of supersonic regions when the oscillating blade passes through the zero deflection during upstroke and downstroke. Resulting aerodynamic moment is non-harmonic and there is an increasing phase lag with respect to the blade deflection when oscillation frequency increases. In majority of investigated regimes, hysteresis resulted in aerodynamic damping of the blade oscillation.
随着航空涡扇发动机功率重量比和汽轮机效率的不断提高,人们设计出了长而细长的叶片,叶片通常工作在跨声速流动条件下。这样的叶片容易产生不希望的、可能是破坏性的振动,这是由发动机级激励或由流动本身引起的。为了进一步阐明这一问题并扩展已有的知识,本文对平坦型线叶栅中单叶的扭转模态振动进行了实验和数值研究。在这项研究中,研究了在亚音速、超临界和跨音速流态下,当叶片由电机和轴机构在k = 0.47的降低频率下进行运动激励时的动态载荷和压力分布。在数值模拟的基础上,对流动结构的动态发展进行了记录和分析。此外,还研究了振荡周期内能量传递与频率和出口马赫数的关系。结果表明,流场结构存在明显的滞后性,特别是在超临界和跨音速情况下。滞回表现为振荡叶片在上行程和下行程经过零偏转时,超声速区域的发展不同。由此产生的气动力矩是非谐波的,并且随着振荡频率的增加,相对于叶片偏转存在一个增加的相位滞后。在大多数研究状态下,迟滞导致了叶片振动的气动阻尼。
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引用次数: 0
Couple stress Casson ternary hybrid nanofluids in a channel with applications in medical sciences 通道中耦合应力卡森三元杂化纳米流体及其在医学中的应用
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.06.003
Shafiq Ahmad , Farhad Ali , Ilyas Khan , Samira Elaissi , N.F.M. Noor , Mohamed Kallel
In the past few years, there has been a notable global surge in research on nanofluids, driven by their promising thermal applications in engineering and biological sciences. Nanofluids have demonstrated promising results in enhancing heat transfer phenomena. To further enhance the thermal performance of conventional base fluids, researchers have increasingly focused on investigating the use of structured nanoparticle suspensions within these fluids. With a consideration of the potential applications of nanoparticles, this paper intends to explore the utilization of three nanoparticles with distinct shapes within a single base fluid. More precisely, three different nanoparticles with different shapes, i.e., spherical-shaped gold (Au), cylindrical-shaped zinc (Zn), and platelet-shaped ferric oxide (Fe3O4) are added to the base fluid blood because of their relative advanced pharmaceutical applications. In this study, the primary focus is to thoroughly analyze the heat transfer characteristics of an unsteady flow of a couple-stress Casson ternary hybrid nanofluid within a channel. The flow regime under investigation is represented by classical partial differential equations, which are subsequently non-dimensionalized using appropriate non-dimensional variables. To further analyze the system, the dimensionless partial differential equations are fractionally modified using Caputo's definition of fractional derivatives, incorporating Fick's and Fourier's laws, and the exact solutions for temperature, concentration, and velocity profiles are achieved by employing the Laplace and Fourier transforms. The results clearly indicate that as the volume fraction of nanoparticles increases, the fluid velocity decreases while the temperature rises. The utilization of a blood-based ternary hybrid nanofluid enhances the rate of heat transfer by up to 20%. Specifically, the inclusion of spherical-shaped gold (Au) nanoparticles rises heat transfer by up to 16%, cylindrical-shaped zinc (Zn) nanoparticles enhance it by up to 19%, and platelet-shaped ferric oxide (Fe3O4) nanoparticles enhance it by up to 23%.
在过去几年中,纳米流体在工程和生物科学中的热应用前景广阔,推动了纳米流体的研究在全球范围内出现了显著的激增。纳米流体在增强传热现象方面显示出有希望的结果。为了进一步提高传统基础流体的热性能,研究人员越来越关注在这些流体中使用结构纳米颗粒悬浮液的研究。考虑到纳米颗粒的潜在应用,本文打算探索三种不同形状的纳米颗粒在单一基液中的应用。更准确地说,三种不同形状的纳米颗粒,即球形金(Au),圆柱形锌(Zn)和血小板状氧化铁(Fe3O4),由于它们相对先进的制药应用,被添加到基础液体血液中。在本研究中,主要重点是深入分析耦合应力卡森三元杂化纳米流体在通道内的非定常流动传热特性。所研究的流型由经典偏微分方程表示,随后使用适当的无量纲变量对其进行无量纲化。为了进一步分析系统,使用卡普托的分数阶导数定义对无量纲偏微分方程进行分数阶修正,结合菲克定律和傅立叶定律,并通过使用拉普拉斯变换和傅立叶变换获得温度、浓度和速度剖面的精确解。结果清楚地表明,随着纳米颗粒体积分数的增加,流体速度随温度的升高而降低。基于血液的三元混合纳米流体的使用将传热率提高了20%。具体来说,球形金(Au)纳米颗粒的加入使传热率提高了16%,圆柱形锌(Zn)纳米颗粒的加入使传热率提高了19%,片状氧化铁(Fe3O4)纳米颗粒的加入使传热率提高了23%。
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引用次数: 0
A survey and analysis of multiphase electric propulsion motors and associated controllers for driving underwater platforms 水下平台驱动用多相电力推进电机及相关控制器的研究与分析
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.06.001
Arun Singh, Anita Khosla
Propulsion motors are essential for driving underwater platforms, which are designed to explore and exploit marine resources, primarily materials located within oceans and other bodies of water. Historically, humans have used artificial underwater structures such as ships, oil rigs, boats, submarines, robots, and autonomous vehicles to harness marine resources, encompassing commercial and military applications. Whether static or dynamic, these underwater platforms rely on different propulsion systems for manoeuvrability, including nuclear power, diesel engines, fuel cell/air independent propulsion (AIP) and electrically driven motors. These propulsion systems create thrust, using propeller or water jet mechanisms to move inside waterbodies. This study traces the evolution of underwater propulsion motors in deep-sea applications from their inception to the current state-of-the-art advancements. It provides a detailed overview of existing underwater motor and controller technologies used for underwater platforms, emphasising their capabilities and limitations while highlighting potential areas for innovation in the design of multiphase motors. This paper critically evaluates the current electric propulsion motors used in underwater platforms. Furthermore, the paper identifies gaps in existing technologies for multiphase electric motors designed for deep-sea application, which are more than a hundred meters deep with power requirements exceeding 200 kW with the motor mounted externally, directly exposed to the high pressures of the deep-sea environment, setting the stage for future research and development opportunities that can lead to improved exploration of oceans and their resources.
推进发动机对于驱动水下平台是必不可少的,水下平台被设计用于勘探和开发海洋资源,主要是位于海洋和其他水体中的材料。从历史上看,人类已经使用人工水下结构,如船舶、石油钻井平台、船只、潜艇、机器人和自动驾驶汽车来利用海洋资源,包括商业和军事应用。无论是静态还是动态,这些水下平台依靠不同的推进系统来实现机动性,包括核动力、柴油发动机、燃料电池/不依赖空气推进(AIP)和电动马达。这些推进系统产生推力,利用螺旋桨或水射流机制在水体内移动。本研究追溯了水下推进马达在深海应用中的演变,从最初的发展到目前的最新进展。它详细概述了用于水下平台的现有水下电机和控制器技术,强调了它们的能力和局限性,同时强调了多相电机设计的潜在创新领域。本文对目前用于水下平台的电力推进电机进行了批判性评价。此外,该论文还指出了为深海应用而设计的多相电动机现有技术的差距,这些电动机的功率要求超过200千瓦,电动机安装在外部,直接暴露在深海环境的高压中,为未来的研究和开发机会奠定了基础,可以改善海洋及其资源的勘探。
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引用次数: 0
Recent advances in modified Arrhenius activation energy and bioconvection in Williamson nanofluid flow over a bidirectional surface 改性Arrhenius活化能和Williamson纳米流体双向流动的生物对流研究进展
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.06.002
Tayyaba Akhtar , Muhammad Abid , Basma Souayeh , Fourth D. Muhammad Imran
Non-Newtonian flows have applications in food combination, plasma flow, inherent and organic fluids, antibiotics, and lubrication through oils and greases. This study explores the bidirectional flow of Williamson nanofluid in a porous medium, incorporating thermophoresis, Brownian motion, bioconvection effects, and Arrhenius activation energy over a nonlinear stretching surface. The governing equations are transformed into a dimensionless form using similarity transformations and numerically solved via MATLAB's bvp4c shooting scheme. Results indicate that increasing the Williamson parameter λ and porosity parameter ε reduces velocity, with a 10% rise in λ leading to an 8% velocity reduction. Temperature increases with the thermophoresis parameter (Nt) where a 15% increase in Nt results in a 7% temperature rise. The Nusselt number improves with a higher Prandtl number Pr increasing by 10% when Pr rises from 5 to 7, while the Sherwood number declines with stronger Brownian motion. These findings provide key insights into heat and mass transfer mechanisms, contributing to advancements in industrial cooling, biomedical applications, and nanofluid-based thermal systems.
非牛顿流体在食品组合、等离子体流动、固有流体和有机流体、抗生素以及油脂润滑等领域都有应用。本研究探讨了Williamson纳米流体在多孔介质中的双向流动,包括热电泳、布朗运动、生物对流效应和非线性拉伸表面上的Arrhenius活化能。利用相似变换将控制方程转化为无因次形式,并通过MATLAB的bvp4c射击方案进行数值求解。结果表明,增加Williamson参数λ和孔隙度参数ε会降低速度,λ增加10%会导致速度降低8%。温度随着热泳参数(Nt)的升高而升高,其中Nt增加15%导致温度升高7%。当Pr从5增加到7时,努塞尔数增加,普朗特数Pr增加10%,舍伍德数下降,布朗运动增强。这些发现为传热传质机制提供了重要的见解,有助于工业冷却、生物医学应用和基于纳米流体的热系统的进步。
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引用次数: 0
Multi-fidelity modelling of a high bypass ratio turbofan engine with variable area nozzle 带变面积喷管的高涵道比涡扇发动机多保真度建模
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.05.005
Andrea Magrini, Ernesto Benini
Low pressure ratio fans of modern civil turbofans suffer from reduced stall margin in the take-off operating line and at part-speed, requiring variable geometry devices. Variable area nozzles (VAN) are one of the investigated solutions to control engine operating conditions throughout the mission. In this paper, we present a multi-fidelity modelling approach for an ultra-high bypass ratio turbofan engine with a VAN, combining a zero-dimensional thermodynamic cycle simulator using a realistic fan map with two- and three-dimensional detailed computational fluid dynamics (CFD) simulations for internal/external flow coupling. By adopting a novel algorithm to match the cycle conditions to the CFD solutions, the propulsive performance of the turbofan is analysed in a reference aircraft mission. The numerical method captures the effect on thrust generation and nacelle drag, providing a more reliable estimation of the impact of VAN on engine operation and efficiency. Low-speed mission points are confirmed to be those that benefit the most from an enlarged fan nozzle area, with a possible improvement of 3% in terms of thrust and specific fuel consumption at take-off and approach using a 10% larger area, similarly predicted by both 2D and 3D models. A preliminary acoustic evaluation based on semi-empirical noise models indicates a modest effect on noise emissions, with up to 1 dB reduction in microphone signature at the sideline for a nozzle area increased by 10%.
现代民用涡扇低压比风扇在起飞操作线和部分转速时存在失速余量减小的问题,需要采用可变几何装置。变面积喷管(VAN)是在整个任务过程中控制发动机运行条件的研究解决方案之一。在本文中,我们提出了一种具有VAN的超高涵道比涡扇发动机的多保真建模方法,将使用真实风扇图的零维热力学循环模拟器与内部/外部流动耦合的二维和三维详细计算流体动力学(CFD)模拟相结合。采用一种新颖的算法将循环条件与CFD解匹配,分析了参考飞机任务中涡扇发动机的推进性能。该数值方法捕捉到了对推力产生和机舱阻力的影响,从而更可靠地估计了VAN对发动机运行和效率的影响。低速任务点被证实是那些从扩大风扇喷嘴面积中受益最大的地方,在起飞和进近时,使用10%的面积,推力和比油耗可能提高3%,这与2D和3D模型的预测相似。基于半经验噪声模型的初步声学评估表明,对噪声发射有适度的影响,喷嘴区域边线的麦克风特征降低了1 dB,增加了10%。
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引用次数: 0
Efficient study on the influence of compressor casing configuration on aeroelastic stability using multi-passage energy method 用多通道能量法高效研究压气机匣结构对气动弹性稳定性的影响
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.05.002
Xin Zhao , Le Han , Dasheng Wei
This study investigated the influence of casing profiles on the aeroelastic stability of a transonic compressor rotor. To elucidate the influence of casing profiles on aerodynamic damping (AD) and delve into more detailed insights, the influence coefficient method and phase-shift theory were incorporated into the conventional energy method to establish the multi-passage energy method. The unsteady pressure was calculated using the influence coefficient method and the outcomes at various nodal diameters (NDs) were reconstructed based on the phase-shift theory. Thus, the multi-passage energy method offers more comprehensive information than the conventional energy method, the aeroelastic eigenvalue method, and the coupled fluid-structure interaction method. Four casing profiles were simulated. In contrast to the straight casing configuration, the concave shrinking casing was found to be detrimental to aeroelastic stability. The convex shrinking casing can alleviate the blockage in the tip flow field and improve both the aerodynamic performance and aeroelastic stability. The multi-passage energy method further revealed that the AD is contributed by the blade itself and the adjacent blades. In comparison to the straight casing, the convex shrinking casing not only enhances the AD of the blade itself but also diminishes the AD fluctuation of the adjacent blades. Consequently, the minimum AD is increased.
研究了机匣型线对跨声速压气机转子气动弹性稳定性的影响。为了阐明机匣型线对气动阻尼的影响并深入研究,将影响系数法和相移理论引入常规能量法,建立了多通道能量法。采用影响系数法计算了非定常压力,并基于相移理论重构了不同节点直径下的非定常压力。因此,多通道能量法比常规能量法、气动弹性特征值法和流固耦合法提供了更全面的信息。模拟了四种套管剖面。与直套管相比,凹缩套管不利于气动弹性稳定性。凸缩机匣可以缓解叶顶流场的阻塞,提高气动性能和气动弹性稳定性。多通道能量法进一步揭示了叶片自身和相邻叶片对AD的贡献。与直机匣相比,凸缩机匣不仅提高了叶片本身的AD,而且减小了相邻叶片的AD波动。因此,增加了最小AD。
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引用次数: 0
Review of flow instability in gas-turbine compression system 燃气轮机压缩系统流动不稳定性研究进展
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.05.001
Jingyi Zeng , Feng Liu
Compressor instability, particularly stall and surge, poses significant challenges to the performance, efficiency, and reliability of axial compressors in aerospace and power-generation systems. This review comprehensively summarizes the evolution of research on stall precursors, including modal wave, spike, rotating instability, and partial surge. Each precursor exhibits distinct spatial and temporal characteristics linked to specific unsteady flow structures such as tip leakage vortex breakdown, hub corner separation, and shock-boundary layer interactions. The transformation of stall precursors under varying design parameters and operating conditions is analyzed, with a focus on how radial loading distribution, tip clearance, and inlet distortion influence instability behavior. Future directions are proposed, emphasizing the development of unified theoretical models, accelerated numerical methods, and full-annulus experiments to enhance stall prediction and active control strategies.
压缩机的不稳定性,特别是失速和喘振,对航空航天和发电系统中轴向压缩机的性能、效率和可靠性提出了重大挑战。本文综述了失速前兆的研究进展,包括模态波、尖峰、旋转失稳和部分喘振。每个前驱体都表现出不同的空间和时间特征,这些特征与特定的非定常流结构(如叶尖泄漏涡击穿、轮毂角分离和激波边界层相互作用)有关。分析了不同设计参数和运行条件下失速前驱体的转变,重点研究了径向载荷分布、叶尖间隙和进气道畸变对失稳行为的影响。提出了未来的发展方向,强调发展统一的理论模型、加速的数值方法和全环试验,以加强失速预测和主动控制策略。
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引用次数: 0
Numerical simulation and performance evaluation of skin friction reduction by boundary layer injection under hypervelocity inflow condition 超高速入流条件下边界层喷射减阻的数值模拟及性能评价
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.05.003
Zhenming Qu, Feiteng Luo, Yaosong Long, Wenjuan Chen
This study proposes a quantitative evaluation framework to assess the performance of boundary layer injection (BLI) technology, establishing standardized metrics for integration into performance analysis of scramjets. We comparatively evaluate inert gas and fuel BLI strategies under typical combustor inflow conditions through systematic numerical investigations employing this evaluation framework. Key findings reveal that fuel injection demonstrates superior skin friction reduction efficacy compared to inert gases, especially hydrogen, achieving skin friction reduction performance up to 600 s at Mach 8+ conditions with an injection equivalence ratio (ER) of 0.1. Hydrogen's advantage arises from its inherently low density, coupled with combustion-induced density reduction in the log-law region. This dual mechanism suppresses turbulent momentum transport and attenuates skin friction through large-scale flow restructuring. However, when benchmarked against reacting mainstream flows without BLI, fuel injection efficacy diminishes significantly (100 s level) — local density reduction effects induced by boundary layer combustion are attenuated by mainstream heat release, limiting further momentum transport suppression and reducing drag reduction performance to inert gas levels. These results underscore the critical influence of ambient combustion conditions on BLI effectiveness, emphasizing that BLI implementation must prioritize non-reacting or weakly reacting flow environments. The proposed standardized metrics address this operational dependency, enabling BLI optimization within full-engine design paradigms to prevent counterproductive “pseudo-optimization."
本研究提出了一个定量评估框架来评估边界层喷射(BLI)技术的性能,建立了标准化的指标,用于集成到超燃冲压发动机的性能分析中。采用该评价框架,通过系统的数值研究,对典型燃烧室流入工况下的惰性气体和燃料BLI策略进行了比较评价。主要研究结果表明,与惰性气体(尤其是氢气)相比,燃油喷射具有更好的表面摩擦减少效果,在8马赫以上的条件下,燃油喷射等效比(ER)为0.1,可实现高达600秒的表面摩擦减少性能。氢的优势源于其固有的低密度,加上燃烧引起的对数区域密度降低。这种双重机制抑制了湍流动量输运,并通过大规模的流动重组减弱了表面摩擦。然而,当与没有BLI的反应主流流进行基准测试时,燃油喷射效率显著降低(100秒水平)——边界层燃烧引起的局部密度降低效应被主流热释放减弱,限制了进一步的动量输运抑制,并降低了惰性气体水平的减阻性能。这些结果强调了环境燃烧条件对BLI效率的关键影响,强调了BLI的实施必须优先考虑非反应或弱反应流动环境。提出的标准化指标解决了这种操作依赖性,使BLI优化能够在全引擎设计范例中进行,以防止适得其反的“伪优化”。
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引用次数: 0
MHD triple diffusion due to the impulsive flow of micropolar nanofluids around a cone: Mangler's transformations and ANN analyses 微极性纳米流体在圆锥体周围的脉冲流动引起的MHD三重扩散:Mangler变换和人工神经网络分析
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.05.004
Z.Z. Rashed , Sameh E. Ahmed
An implicit finite difference (FD) and artificial neural network (ANN) techniques are applied to study the triple diffusion and non-linear mixed convection flow around a vertical cone. The forced flow is due to an impulsive motion of a micropolar nanofluid while the buoyancy-driven flow is obtained using the quadratic form of Boussinesq approximation. Two governing equations are introduced for the species concentrations; those include non-linear chemical reactions. It is focused on the cases of the weak concentration of microelements, opposing and assisting flow, and the roles of the magnetic field, viscous dissipation, and convective boundary conditions are examined. The solution methodology is based on Mangler's transformations. At the same time, the effective ANN is used to predict some important physical quantities such as heat transfer rate against some key factors such as Biot number, Eckert number, and magnetic coefficient. Remarkably, the flow rate in the assisting flow is up to 0.95% higher than in the opposing flow. Across all cases, an increase in the vortex parameter (K=0.11.2) enhances fluid friction near the cone surface by 63.1%. These findings are particularly relevant for industrial applications involving heat and mass transfer in nanofluid systems, such as microreactors, biomedical engineering, and thermal energy storage.
采用隐式有限差分(FD)和人工神经网络(ANN)技术研究了绕垂直锥体的三重扩散和非线性混合对流流动。强迫流动是由于微极纳米流体的脉冲运动引起的,而浮力驱动的流动是使用二次形式的Boussinesq近似得到的。引入了两个物种浓度的控制方程;其中包括非线性化学反应。重点讨论了微量元素弱浓度、反流和助流的情况,考察了磁场、粘性耗散和对流边界条件的作用。解决方法是基于Mangler的转换。同时,利用有效的人工神经网络,结合Biot数、Eckert数、磁系数等关键因素,对传热速率等重要物理量进行预测。值得注意的是,辅助流的流量比相反流的流量高0.95%。在所有情况下,涡流参数(K=0.1 - 1.2)的增加使锥体表面附近的流体摩擦增加63.1%。这些发现特别适用于纳米流体系统中涉及热传质的工业应用,如微反应器、生物医学工程和热能储存。
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引用次数: 0
Recent advances in the development of ammonia borane for both energetic and energy storage materials 含硼氨储能材料的研究进展
IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Pub Date : 2025-06-01 DOI: 10.1016/j.jppr.2025.06.004
Rui Pu, Yunlong Zhang, Shaoli Chen, Qilong Yan
Ammonia borane (NH3BH3) has garnered significant attention as a high-potential hydrogen storage material owing to its exceptional hydrogen content of 19.6 wt%. This remarkable capacity positions it as a promising candidate for energetic applications, including next-generation solid propellants. However, its practical utility in such systems is limited by its inherently low decomposition temperature, which compromises stability under operational conditions. Over the past two decades, extensive research has focused on enhancing ammonia borane's properties through structural and chemical modifications, resulting in notable progress. Despite these advancements, a systematic review synthesizing modification strategy and their implications for energetic material applications remains absent. To address this gap, this review systematically compiles recent advances in ammonia borane modification and critically evaluates its evolving role in energetic material development, offering insights into future research directions.
氨硼烷(NH3BH3)作为一种高潜力的储氢材料,其氢含量高达19.6 wt%,引起了人们的广泛关注。这种卓越的能力使其成为有希望的高能应用候选者,包括下一代固体推进剂。然而,其在此类系统中的实际应用受到其固有的低分解温度的限制,这损害了其在操作条件下的稳定性。在过去的二十年里,通过结构和化学修饰来提高氨硼烷的性能得到了广泛的研究,并取得了显著的进展。尽管取得了这些进展,但系统的综合改性策略及其对高能材料应用的影响仍然缺乏。为了解决这一差距,本文系统地汇编了氨硼烷改性的最新进展,并批判性地评估了其在高能材料开发中的演变作用,为未来的研究方向提供了见解。
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引用次数: 0
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Propulsion and Power Research
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