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学者姓名：王新华
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Abstract ：
Harmonic magnetic field focus detection technology has been utilized for in-service pipeline defect detection due to its advantage in providing high-sensitivity and noncontact detection. However, this technology encounters interference from background signals and noise during high lift-off detection, which limits the accuracy of defect signal extraction. To quickly and robustly identify pipe defects, this work discloses a novel defect signal extraction method for multiple-harmonic magnetic field detection technology. The proposed method is insensitive to noise interference, effectively extracting defect signals even under high-intensity noise conditions. A pipe defect model based on magnetic dipole moments is established for simulation analysis, and a pipeline test platform is built for experimental validation. The results demonstrate that the proposed method can identify defects from signals with a low signal-to-noise ratio of 5.7 dB and locate pipes, welds, and defects with high resolution.
Keyword ：
Defect signal extraction method Defect signal extraction method pipe defect numerical model pipe defect numerical model noncontact electromagnetic detection noncontact electromagnetic detection pipeline pipeline noise insensitive noise insensitive
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| GB/T 7714 | Yang, Lin , Wang, Xinhua , Sun, Tao et al. A technology of multiple-harmonic magnetic field excitation and its signal-processing method for noncontact steel pipeline defect detection [J]. | STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL , 2024 . |
| MLA | Yang, Lin et al. "A technology of multiple-harmonic magnetic field excitation and its signal-processing method for noncontact steel pipeline defect detection" . | STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL (2024) . |
| APA | Yang, Lin , Wang, Xinhua , Sun, Tao , Wang, Yuexin , Qi, Yongsheng , Hu, Naixiang et al. A technology of multiple-harmonic magnetic field excitation and its signal-processing method for noncontact steel pipeline defect detection . | STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL , 2024 . |
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Abstract ：
在航天发射领域，液氧的加注系统关系到发射任务能否圆满完成，所以对于液氧流速的测量至关重要。而涡街流量计由于其性能稳定、宽量程等优点常作为液氧流速的测量仪器。经过试验仿真发现涡街流量计在低流速和高流速下涡街系数呈现出不同的特性，导致涡街流量计在低流速下其精度较低。为探究涡街流量计在低流速和高流速下其涡街系数的变化特性，对入口速度为1.0～10.5 m/s流速的涡街流场进行仿真试验，得到涡街频率和入口速度的关系图，并通过拟合曲线得到涡街频率和涡街系数的拟合曲线，最后利用得到的涡街系数曲线与平均系数进行流速的计算发现，通过曲线拟合后得到的流体流速更为精确。
Keyword ：
涡街流量计 涡街流量计 数值分析 数值分析 涡街系数 涡街系数 曲线拟合 曲线拟合 流速下限 流速下限
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| GB/T 7714 | 亢勇 , 张宝军 , 郑伟斌 et al. 涡街流量计涡街系数数值计算与仿真分析研究 [J]. | 包钢科技 , 2023 , 49 (03) : 76-82 . |
| MLA | 亢勇 et al. "涡街流量计涡街系数数值计算与仿真分析研究" . | 包钢科技 49 . 03 (2023) : 76-82 . |
| APA | 亢勇 , 张宝军 , 郑伟斌 , 李崧岳 , 张红星 , 赵泽岭 et al. 涡街流量计涡街系数数值计算与仿真分析研究 . | 包钢科技 , 2023 , 49 (03) , 76-82 . |
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Abstract ：
As a result of its wide range of applications, FSI has grabbed the attention of researchers and scientists. In this study we consider an incompressible, laminar fluid flowing through the bifurcated channel. The wavy walls of the channel are considered elastic. Moreover, a magnetic field is applied towards the axial direction of the flow. Using a two-way fluid-structure interaction, an Arbitrary Lagrangian-Eulerian (ALE) formulation is used for coupling the problem. The problem is discretized using P 2 and P 1 finite element methods to approximate the displacement, pressure, and velocity. The linearized system of equations is solved using Newton's iterative scheme. The analysis is carried out for the Reynolds number and Hartman number. The ranges of the studied parameters are Reynolds number 300 & LE; R e & LE; 1000 and Hartmann number 0 & LE; H a & LE; 10 . The hemodynamic effects on the bifurcated channel and elastic walls are calculated using velocity, pressure, wall shear stresses (WSS), and loads at the walls. The study shows there is an increase in boundary load as the values of the Hartman number increase hence WSS increases. On the other hand, an increase in the Reynolds number increases the resistance forces hence velocity and WSS decrease. Also, numerical values of WSS for rigid and elastic walls are calculated. Studies showed that WSS decreases for the FSI case when compare to CFD (computational fluid dynamic) case.
Keyword ：
elastic walls elastic walls bifurcation bifurcation wall shear stress wall shear stress fluid-structure interaction fluid-structure interaction biomagnetic fluid biomagnetic fluid finite element method finite element method
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| GB/T 7714 | Shahzad, Hasan , Wang, Xinhua , Raizah, Zehba et al. Fluid-structure interaction study of bio-magnetic fluid in a wavy bifurcated channel with elastic walls [J]. | FRONTIERS IN PHYSICS , 2022 , 10 . |
| MLA | Shahzad, Hasan et al. "Fluid-structure interaction study of bio-magnetic fluid in a wavy bifurcated channel with elastic walls" . | FRONTIERS IN PHYSICS 10 (2022) . |
| APA | Shahzad, Hasan , Wang, Xinhua , Raizah, Zehba , Riaz, Arshad , Majeed, Afraz Hussain , Anwar, Muhammad Adnan et al. Fluid-structure interaction study of bio-magnetic fluid in a wavy bifurcated channel with elastic walls . | FRONTIERS IN PHYSICS , 2022 , 10 . |
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Abstract ：
目的 提高海水轴向柱塞泵摩擦副的耐磨和耐蚀性能，以钛纳米颗粒（Ti）和碳纳米纤维（CNF）为原料，设计并制备Ti–CNF增强环氧树脂复合涂层。方法 借助红外光谱仪分析纯树脂和Ti–CNF增强环氧树脂复合材料中官能团的变化，通过硬度、附着力、断裂韧度、摩擦磨损和耐酸碱溶液浸渍测试，分别评价不同含量的Ti–CNF增强环氧树脂复合涂层的硬度、附着力、断裂韧度、摩擦学性能和耐腐蚀性能，并利用扫描电子显微镜揭示复合涂层的断裂、磨损和腐蚀机理。结果 Ti–CNF混合填料与树脂基体的结合方式为物理黏合；当添加填料的质量分数为6%时，复合材料的增强效果最佳，硬度、附着力、断裂韧度、摩擦因数和磨损率分别为668...
Keyword ：
硬度和附着力 硬度和附着力 复合涂层 复合涂层 环氧树脂 环氧树脂 耐酸碱腐蚀 耐酸碱腐蚀 摩擦学性能 摩擦学性能 断裂韧度 断裂韧度
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| GB/T 7714 | 柴辉 , 王新华 , 孙涛 et al. Ti–CNF增强环氧树脂复合涂层的制备及性能研究 [J]. | 表面技术 , 2022 , 51 (05) : 166-176 . |
| MLA | 柴辉 et al. "Ti–CNF增强环氧树脂复合涂层的制备及性能研究" . | 表面技术 51 . 05 (2022) : 166-176 . |
| APA | 柴辉 , 王新华 , 孙涛 , 程一启 , 杨林 , 齐勇胜 . Ti–CNF增强环氧树脂复合涂层的制备及性能研究 . | 表面技术 , 2022 , 51 (05) , 166-176 . |
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Abstract ：
Heat flux manipulation based on thermal metamaterials under diffusive heat conduction has been ex-tensively studied due to their extraordinary potential in energy utilization. However, the requirement of extreme material parameters or even infinite singularity may significantly limit their practical applica-tions. In this work, we propose a new method for uniformly designing thermal cloak and concentrator with interconnected structure. The condition for realizing the undisturbed temperature distribution of the background medium in thermal cloak is strictly deduced. Through adjusting two geometric parameters of the interconnected structure, we analytically demonstrate that the thermal cloak and concentrator are realizable, where the heat flux can be shielded or concentrated in the target region. The desired ther-mal functionalities are confirmed both by the finite element simulations and heat transfer experiments. Furthermore, the results of interconnected structure are in excellent agreement with that of conventional thermal devices, and demonstrate that the interconnected structure provides an efficient method for ma-nipulating heat flux over a very wide range (from cloaking to concentrating) despite having a simple composition and structural characteristics. The feasibility of interconnected structure can enhance the se-lection of bulk natural materials in addition to easy manufacturability for the heat flux manipulation, which might be extended to other disciplines, such as electromagnetics and acoustics. (c) 2022 Elsevier Ltd. All rights reserved.
Keyword ：
Thermal cloak Thermal cloak Heat conduction Heat conduction Thermal concentrator Thermal concentrator Interconnected structure Interconnected structure
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| GB/T 7714 | Sun, Tao , Wang, Xinhua , Yang, Xuyun et al. Design of thermal cloak and concentrator with interconnected structure [J]. | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , 2022 , 187 . |
| MLA | Sun, Tao et al. "Design of thermal cloak and concentrator with interconnected structure" . | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 187 (2022) . |
| APA | Sun, Tao , Wang, Xinhua , Yang, Xuyun , Meng, Tao , He, Renyang , Wang, Yuexin . Design of thermal cloak and concentrator with interconnected structure . | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , 2022 , 187 . |
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Abstract ：
Fluid-structure interaction (FSI) gained a huge attention of scientists and researchers due to its applications in biomedical and mechanical engineering. One of the most important applications of FSI is to study the elastic wall behavior of stenotic arteries. Blood is the suspension of various cells characterized by shear thinning, yield stress, and viscoelastic qualities that can be assessed by using non-Newtonian models. In this study we explored non-Newtonian, incompressible Casson fluid flow in a bifurcated artery with a stenosis. The two-dimensional Casson model is used to study the hemodynamics of the flow. The walls of the artery are supposed to be elastic and the stenosis region is constructed in both walls. Suitable scales are used to transform the nonlinear differential equations into a dimensionless form. The problem is formulated and discretized using Arbitrary Lagrangian-Eulerian (ALE) approach. The finite element method (FEM) technique is used to solve the system of equations, together with appropriate boundary conditions. The analysis is carried out for the Bingham number, Hartmann number, and Reynolds number. The graphical results of pressure field, velocity profile, and load on the walls are assessed and used to study the influence of hemodynamic effects on stenotic arteries, bifurcation region, and elastic walls. This study shows that there is an increase in wall shear stresses (WSS) with increasing values of Bingham number and Hartmann number. Also, for different values of the Bingham number, the load on the upper wall is computed against the Hartmann number. The result indicate that load at the walls increases as the values of Bingham number and Hartmann number increase.
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| GB/T 7714 | Shahzad, Hasan , Wang, Xinhua , Ghaffari, Abuzar et al. Fluid structure interaction study of non-Newtonian Casson fluid in a bifurcated channel having stenosis with elastic walls [J]. | SCIENTIFIC REPORTS , 2022 , 12 (1) . |
| MLA | Shahzad, Hasan et al. "Fluid structure interaction study of non-Newtonian Casson fluid in a bifurcated channel having stenosis with elastic walls" . | SCIENTIFIC REPORTS 12 . 1 (2022) . |
| APA | Shahzad, Hasan , Wang, Xinhua , Ghaffari, Abuzar , Iqbal, Kaleem , Hafeez, Muhammad Bilal , Krawczuk, Marek et al. Fluid structure interaction study of non-Newtonian Casson fluid in a bifurcated channel having stenosis with elastic walls . | SCIENTIFIC REPORTS , 2022 , 12 (1) . |
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Abstract ：
本申请涉及一种火箭发射场用涡街流量计流固耦合数值分析方法，基于ANSYS软件中Fluent流体计算模块研究涡街流量计内部低温/超低温流场的流动特性，将上述计算结果导入到ANSYS软件中StaticStructural结构力学计算模块分析涡街流量计流道内低温/超低温流体对旋涡发生器的变形、应力应变的影响，并将变形后的结构再次导入到ANSYS软件中Fluent流体计算模块来研究发生变形后的旋涡发生器对流道内低温/超低温流体流动特性的影响，为发射场固定校验系统标定提供技术支撑，有助于进一步提高加注精度，减少加注过程中流量计量精度方面的误差，确保任务的顺利发射。
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| GB/T 7714 | 王新华 , 柴辉 , 张红星 et al. 一种火箭发射场用涡街流量计流固耦合数值分析方法 : CN202110809613.X[P]. | 2021-07-17 . |
| MLA | 王新华 et al. "一种火箭发射场用涡街流量计流固耦合数值分析方法" : CN202110809613.X. | 2021-07-17 . |
| APA | 王新华 , 柴辉 , 张红星 , 李崧岳 , 亢勇 , 郑伟斌 et al. 一种火箭发射场用涡街流量计流固耦合数值分析方法 : CN202110809613.X. | 2021-07-17 . |
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Abstract ：
The non-isothermal couple stress fluid inside a reverse roll coating geometry is considered. The slip condition is considered at the surfaces of the rolls. To develop the flow equations, the mathematical modelling is performed using conservation of momentum, mass, and energy. The LAT (lubrication approximation theory) is employed to simplify the equations. The closed form solution for velocity, temperature, and pressure gradient is obtained. While the pressure and flow rate are obtained numerically. The impact of involved parameters on important physical quantities such as temperature, pressure, and pressure gradient are elaborated through graphs and in tabular form. The pressure and pressure gradient decreases for variation of the couple stress parameter and velocity ratio parameter K. While the variation of the slip parameter increases the pressure and pressure gradient inside the flow geometry. Additionally, flow rate decreases for the variation of the slip parameter as fluid starts moving rapidly along the roller surface. The most important physical quantity which is responsible for maintaining the quality of the coating and thickness is flow rate. For variation of both the couple stress parameter and the slip parameter, the flow rate decreases compared to the Newtonian case, consequently the coating thickness decreases for the variation of the discussed parameter.
Keyword ：
non-isothermal flow non-isothermal flow slip condition slip condition analytic solution analytic solution heat transfer heat transfer reverse roll coating reverse roll coating couple stress fluid couple stress fluid lubrication approximation theory (LAT) lubrication approximation theory (LAT) shooting technique shooting technique
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| GB/T 7714 | Shahzad, Hasan , Wang, Xinhua , Hafeez, Muhammad Bilal et al. Study of Slip Effects in Reverse Roll Coating Process Using Non-Isothermal Couple Stress Fluid [J]. | COATINGS , 2021 , 11 (10) . |
| MLA | Shahzad, Hasan et al. "Study of Slip Effects in Reverse Roll Coating Process Using Non-Isothermal Couple Stress Fluid" . | COATINGS 11 . 10 (2021) . |
| APA | Shahzad, Hasan , Wang, Xinhua , Hafeez, Muhammad Bilal , Shah, Zahir , Alshehri, Ahmed Mohammed . Study of Slip Effects in Reverse Roll Coating Process Using Non-Isothermal Couple Stress Fluid . | COATINGS , 2021 , 11 (10) . |
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Abstract ：
Magnetic anomaly detection is becoming increasingly prevalent for detecting and locating the buried pipelines. The detection performance is often hindered by adjacent pipeline, near-field ferromagnetic objects and random noises. In order to overcome these obstacles, a magnetic anomaly detection method based on deep learning neural networks (DLNN) is proposed to decouple and denoise the integrated detection to accurately extract the magnetic anomaly of single pipeline. The theoretical derivation of the vertical component of magnetic anomaly was executed based on Poisson's equation. Then the integrated detection was simulated by summing magnetic anomalies of parallel pipelines and metal sphere, as well as white Gaussian noise. The DLNN was constructed with improved optimization design, and trained using supervised learning method. The results show that the proposed method exhibits almost immune to random noises, the prediction accuracy approaches to 90% with signal to noise ratio (SNR) of 30 dB. Meanwhile, the predictive accuracy is still above 80% with interferences both from near-field ferromagnetic objects and random noises with SNR of 30 dB. The method becomes practically significant in the development of geomagnetic inspection instruments for the adjacent parallel pipelines.
Keyword ：
Deep learning Deep learning Adjacent parallel pipelines Adjacent parallel pipelines Magnetic anomaly detection Magnetic anomaly detection Neural networks Neural networks
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| GB/T 7714 | Sun, Tao , Wang, Xinhua , Wang, Junqiang et al. Magnetic anomaly detection of adjacent parallel pipelines using deep learning neural networks [J]. | COMPUTERS & GEOSCIENCES , 2021 , 159 . |
| MLA | Sun, Tao et al. "Magnetic anomaly detection of adjacent parallel pipelines using deep learning neural networks" . | COMPUTERS & GEOSCIENCES 159 (2021) . |
| APA | Sun, Tao , Wang, Xinhua , Wang, Junqiang , Yang, Xuyun , Meng, Tao , Shuai, Yi et al. Magnetic anomaly detection of adjacent parallel pipelines using deep learning neural networks . | COMPUTERS & GEOSCIENCES , 2021 , 159 . |
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Abstract ：
本发明公开了一种基于FPGA的埋地钢质管道智能阴保系统及实现方法，检测系统包括：数据信息高速并行处理模块、阴保电流采集模块、通电电位采集模块、断电电位采集模块、阴保测试桩、本地数据存储模块、以太网通讯模块、4G通讯模块、电池充电控制模块、太阳能电池板、远程监控台。数据信息高速并行处理模块由FPGA作为主控芯片，高速并行的进行采集、存储和通讯；阴保电流采集模块、通电电位采集模块和断电电位采集模块分别从阴保测试桩中采集阴保的电流和通断电位；4G通讯模块和以太网通讯模块分别用于和远程监控台进行无线和有线通讯；本发明对阴极保护的多个参数进行同步采集和监测，无需架设电线，具有适应性强、通讯稳定、集成度高的优点。
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| GB/T 7714 | 王新华 , 于小欢 , 孙涛 et al. 一种基于FPGA的埋地钢质管道智能阴保系统及实现方法 : CN202011571626.X[P]. | 2020-12-27 . |
| MLA | 王新华 et al. "一种基于FPGA的埋地钢质管道智能阴保系统及实现方法" : CN202011571626.X. | 2020-12-27 . |
| APA | 王新华 , 于小欢 , 孙涛 , 杨林 , 赵以振 , 李荣华 . 一种基于FPGA的埋地钢质管道智能阴保系统及实现方法 : CN202011571626.X. | 2020-12-27 . |
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