A constrained reduced-order method for fast prediction of steady hypersonic flows

Cao Changqiang; Nie Chunsheng; Pan Shucheng; Cai Jinsheng; Qu Kun

首页> 外文期刊>Aerospace science and technology >A constrained reduced-order method for fast prediction of steady hypersonic flows

【24h】

A constrained reduced-order method for fast prediction of steady hypersonic flows

机译：一种限制的快速预测稳态超声波流量的约束下降方法

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

A constrained reduced order model (ROM) based on proper orthogonal decomposition (POD) is proposed to achieve fast and accurate prediction of steady hypersonic flows. The proposed method addresses the convergence issue of the projection-based POD ROM which violates the boundary conditions by using a constrained Gauss-Newton iterative process. The constraints in the iteration are formulated by satisfying the physical boundary conditions. To achieve this, a weighting matrix constructed by an improved Gauss weighting function is adopted to determine the contribution of each cell to the constraint term. The proposed constrained reduced-order method is accelerated by a parallel algorithm based on message passing interface (MIN) and load balancing, which makes the method practical for prediction of complex flows with large memory cost. Fast predictions of hypersonic flows over the two-dimensional cylindrical blunt body and the three-dimensional reentry vehicle using the constrained reduced-order method show that the error is significantly smaller than that of the interpolation-based POD ROM and the projection-based POD ROM. Computing efficiency is increased by 2 similar to 3 orders of magnitude compared to CFD. (C) 2019 Elsevier Masson SAS. All rights reserved.

机译：提出了一种基于适当的正交分解（POD）的受约束的减少阶模型（ROM），以实现对稳定超声波流动的快速准确预测。所提出的方法解决了基于投影的POD ROM的收敛性问题，其通过使用约束的Gauss-Newton迭代过程违反边界条件。通过满足物理边界条件来配制迭代中的约束。为了实现这一点，采用改进的高斯加权函数构成的加权矩阵来确定每个小区对约束项的贡献。所提出的约束的缩小顺序方法通过基于消息传递接口（MIN）和负载平衡的并行算法加速，这使得该方法具有大的内存成本的复杂流的预测。使用约束的缩小阶方法快速预测超声波流过二维圆柱钝体和三维再入式车辆，表明误差明显小于基于插值的POD ROM和基于投影的Pod ROM的误差。与CFD相比，计算效率增加到3个数量级。（c）2019年Elsevier Masson SAS。版权所有。

著录项

来源
《Aerospace science and technology》 |2019年第8期|679-690|共12页
作者
Cao Changqiang; Nie Chunsheng; Pan Shucheng; Cai Jinsheng; Qu Kun;
展开▼
作者单位

Northwestern Polytech Univ Sch Aeronaut Xian 710072 Shaanxi Peoples R China;

CALT Sci & Technol Space Phys Lab Beijing 100076 Peoples R China;

Northwestern Polytech Univ Sch Aeronaut Xian 710072 Shaanxi Peoples R China;

Northwestern Polytech Univ Sch Aeronaut Xian 710072 Shaanxi Peoples R China;

Northwestern Polytech Univ Sch Aeronaut Xian 710072 Shaanxi Peoples R China;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Proper orthogonal decomposition; Reduced-order model; Boundary constraints; Petrov-Galerkin projection;

机译：适当的正交分解;减少阶模型;边界限制;Petrov-Galerkin投影;

相似文献

外文文献
中文文献
专利

1. Numerical investigation of the POD reduced-order model for fast predictions of two-phase flows in porous media [J] . JingfaLi, TaoZhang, ShuyuSun, International journal of numerical methods for heat & fluid flow . 2019,第11期

机译：快速预测多孔介质中两相流的POD降阶模型的数值研究
2. Parallel Lagrange-Newton-Krylov-Schur methods for PDE-constrained optimization. Part II: The Lagrange-Newton solver and its application to optimal control of steady viscous flows [J] . Biros G, Ghattas O SIAM Journal on Scientific Computing . 2005,第2期

机译：用于PDE约束优化的并行Lagrange-Newton-Krylov-Schur方法。第二部分：Lagrange-Newton求解器及其在稳定粘性流最优控制中的应用
3. A reduced-order model based on finite element method for fast prediction of thermal performance of lattice structures [J] . Shengxiang Lin, Junqi Cai, Huanxiong Xia, International Communications in Heat and Mass Transfer . 2021,第Jula期

机译：基于有限元方法的减少阶模型，用于快速预测晶格结构的热性能
4. On the Use of Discrete Nonlinear Reduced-Order Models for the Prediction of Steady-State Flows Past Parametrically Deformed Complex Geometries [C] . Kyle Washabaugh, Matthew J. Zahr, Charbel Farhat AIAA aerospace sciences meeting;AIAA SciTech Forum . 2016

机译：关于使用离散非线性降阶模型预测经过参数变形的复杂几何形状的稳态流
5. A Methodology for Rapid Hypersonic Flow Predictions via Surrogate Modeling with Machine Learning and Deep Learning [D] . Hemming, Nathan 2018

机译：通过具有机器学习和深度学习的替代模型快速进行超音速流预测的方法
6. Fast Contrast-Enhanced 4D MRA and 4D Flow MRI Using Constrained Reconstruction (HYPRFlow): Potential Applications for Brain Arteriovenous Malformations [O] . W. Chang, Y. Wu, K. Johnson, -1

机译：使用约束重建（HYPRFlow）的快速增强对比度的4D MRA和4D流MRI：脑动静脉畸形的潜在应用
7. HIT Poster session 2P479Strain concordance in a real-world setting: experience in our laboratory after equipment upgradeP4803D echocardiography is a fast-learning and reliable method for the measurements of left atrial volumesP481Echocardiographic parameters associated with long-term appropriate antiarrhythmic therapies in cardiac resynchronization therapy defibrillator patientsP482Noninvasively measured global wasted myocardial work allows for quantitative assessment of typical left ventricular mechanical dyssynchrony pattern in patients with left bundle branch blockP483The impact of adherence to physical exercise on the improvement of cardiovascular remodeling and metabolic status in healthy untrained postmenopausal womenP484The impact of the latest chamber quantification recommendations on the prediction of left atrial appendage thrombus presenceP485The cardiac-enriched miRNAs plasma levels (miR-1, miR-133a, miR-499) reflect the impaired left ventricular systolic function and correlate with cardiac necrosis markers in early phase of NSTE-ACSP486Acute regional myocardial deformation changes in patients with severe aortic stenosis and preserved ejection fraction after isolated aortic valve replacementP487Left ventricular rotational deformation in asymptomatic patients with chronic aortic regurgitation and normal left ventricular ejection fraction P488The appropriate use of transthoracic echocardiography for the exclusion of infective endocarditisP489In patients with hypertrophic cardiomyopathy, left ventricular mass and shape by three-dimensional echocardiography are related with dynamic obstruction and functional capacityP490Mitral leaflet sizing in hypertrophic cardiomyopathy: impact of method and timingP491Echocardiographic predictors of atrial fibrillation in obese womenP492Echocardiographic risk factors for 30 day mortality after the hybrid procedure for hypoplastic left heart syndromeP493Left ventricular mass is an independent predictor of coronary flow reserve: insights from a single centre stress echo cohortP494Transesophageal echocardigoraphy uner conscious sedation for guiding cryoballoon pulmonary vein isolation in paroxysmal atrial fibrillation - the safety and feasibility studyP495Transesophageal echocardigoraphy under conscious sedation for guiding cryoballoon pulmonary vein isolation in paroxysmal atrial fibrillation - the safety and feasibility studyP496Three-dimensional trans-esophageal echocardiography assessment of the immediate morphological changes of the mitral annulus after percutaneous mitral edge-to-edge repairP497Clinical value of global and regional longitudinal strain in prediction of myocardial ischemia in asymptomatic diabetes type 2 patientsP499Comparison of prognostic operative risk impact on the global longitudinal strain right ventricle (GLS RV) and tricuspid annular plane systolic excursion (TAPSE) values in patients with ischemic cardioP498Right heart function in early diastolic dysfunction: 2D speckle-tracking echocardiography-based assessment of right atrial and right ventricular functionP500 Comparison of 2D, 3D transesophageal echocardiography and computed tomography during the assessment of left atrial appendage closure [O] . JF. Cueva Recalde, A. Velcea, S. Aguiar Rosa, 2016

机译：HIT墙报2P479Strain一致性在真实世界场景：在设备upgradeP4803D超声心动图检查后，我们实验室的经验是为测量快速学习和可靠的方法左心房在心脏再同步治疗除颤器patientsP482Noninvasively长期适当的抗心律失常治疗相关volumesP481Echocardiographic参数测量了全球浪费心肌工作允许患者依从性左束支传导blockP483The影响到体育锻炼上的最新室定量建议健康未受训练的绝经后womenP484The影响心血管重构和代谢状态的改善典型左室机械不同步模式的定量评估上的预测左心耳血栓presenceP485The心脏富集miRNA的血浆水平（的miR-1，的miR-133a的，的miR-499）反映受损左心室收缩功能及CORREL吃用的患者的严重主动脉瓣狭窄NSTE-ACSP486Acute区域心肌变形的变化早期心肌坏死标志物和后射血分数分离主动脉瓣膜replacementP487Left心室旋转在无症状患者慢性主动脉瓣反流和正常左心室射血分数P488The适当使用不变形对于感染endocarditisP489In肥厚型心肌病患排除经胸超声心动图，由三维超声心动图左心室质量和形状与动态障碍物和功能capacityP490Mitral相关小叶上浆肥厚型心肌病：的心房纤维性颤动中肥胖womenP492Echocardiographic方法和timingP491Echocardiographic预测结果的影响对于syndromeP493Left左室质量发育不全左心脏杂交程序后的30天死亡率的危险因素是冠状动脉血流RESER的独立预测因子已经：见解从一个单一的中心的应力回波cohortP494Transesophageal echocardigoraphy纳清醒镇静用于引导低温球囊肺静脉阵发性心房颤动隔离 - 下清醒镇静的安全性和可行性studyP495Transesophageal echocardigoraphy为阵发性心房颤动引导低温球囊肺静脉隔离 - 安全性和可行性studyP496Three的经皮二尖瓣边缘到边缘repairP497Clinical全球及区域纵向应变的心肌缺血的预测无症状糖尿病类型值2 patientsP499Comparison对预后手术风险冲击二尖瓣环的直接形态学变化维经食道超声心动图评估全球纵向应变右心室（RV GLS）和三尖瓣环平面收缩漂移（TAPSE）患者的早期舒张功能障碍性脑缺血cardioP498Right心脏功能值：2D斑点的trackin右心室2D的functionP500比较右心房的和g超声心动图基于评估，3D食管超声心动图和计算机断层左心耳闭合的评估过程中

A constrained reduced-order method for fast prediction of steady hypersonic flows

摘要

著录项

相似文献

相关主题

期刊订阅