Advanced Modeling and Simulation in Engineering Sciences最新文献_第10页

Compressible flow simulation with moving geometries using the Brinkman penalization in high-order Discontinuous Galerkin 高阶不连续Galerkin中使用Brinkman惩罚的运动几何可压缩流模拟

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-04-27 DOI: 10.1186/s40323-021-00195-4

Neda Ebrahimi Pour, N. Anand, H. Klimach, S. Roller

引用次数: 0

An isogeometric b-rep mortar-based mapping method for non-matching grids in fluid-structure interaction 流固耦合非匹配网格的等几何b-rep砂浆映射方法

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-04-27 DOI: 10.1186/s40323-021-00190-9

A. Apostolatos, A. Emiroglu, S. Shayegan, Fabien Péan, K. Bletzinger, R. Wüchner

引用次数: 1

3D B-Rep meshing for real-time data-based geometric parametric analysis 三维B-Rep网格实时数据为基础的几何参数分析

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-04-15 DOI: 10.1186/s40323-021-00194-5

T. Maquart, T. Elguedj, A. Gravouil, M. Rochette

引用次数: 2

Investigation of pollutants formation in a diesel engine using numerical simulation 柴油机污染物形成的数值模拟研究

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-04-03 DOI: 10.21203/RS.3.RS-366378/V1

M. Zahid, K. S. Syed

{"title":"Investigation of pollutants formation in a diesel engine using numerical simulation","authors":"M. Zahid, K. S. Syed","doi":"10.21203/RS.3.RS-366378/V1","DOIUrl":"https://doi.org/10.21203/RS.3.RS-366378/V1","url":null,"abstract":"The current study aims at simulating the in-cylinder combustion process in a diesel engine and investigating the engine performance and pollutant formation. The combustion simulation is performed on a 3D sector employing appropriate models for various physical and chemical processes contributing in the combustion phenomenon. The overall model includes Transition SST turbulence model, eddy dissipation model for turbulence chemistry interaction, Moss–Brookes model for soot calculation and Zeldovich mechanism for NO production other than the usual transport equations. The numerical solutions are based on the finite volume discretization of the governing partial differential equations. Engine performance has been studied in terms of pressure, temperature and heat release rate while the pollutants formation has been investigated in terms of soot and thermal NO production. The results show that the ignition delay is quite short and that the injection timing may be successfully employed to control the combustion behavior. The simulation results are quite consistent with the expected behavior of the target variables indicating that the CFD analysis can be successfully employed in the diesel engine design. The results validation may be acknowledged in view of the mesh independence test, literature comparison and justification of the models.","PeriodicalId":37424,"journal":{"name":"Advanced Modeling and Simulation in Engineering Sciences","volume":"8 1","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2021-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49262588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new boundary element algorithm for modeling and simulation of nonlinear thermal stresses in micropolar FGA composites with temperature-dependent properties 一种新的边界元算法用于模拟和模拟具有温度相关特性的微极FGA复合材料的非线性热应力

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-03-26 DOI: 10.1186/s40323-021-00193-6

M. Fahmy

引用次数: 1

A cut finite element method for spatially resolved energy metabolism models in complex neuro-cell morphologies with minimal remeshing 基于最小重网格的复杂神经细胞形态空间分辨能量代谢模型的切割有限元方法

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-03-22 DOI: 10.1186/s40323-021-00191-8

S. Farina, S. Claus, John Hale, A. Skupin, Stéphane P. A. Bordas

引用次数: 10

GPU-friendly data structures for real time simulation. gpu友好的实时模拟数据结构。

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-01-01 Epub Date: 2021-03-27 DOI: 10.1186/s40323-021-00192-7

Vincent Magnoux, Benoît Ozell

{"title":"GPU-friendly data structures for real time simulation.","authors":"Vincent Magnoux, Benoît Ozell","doi":"10.1186/s40323-021-00192-7","DOIUrl":"https://doi.org/10.1186/s40323-021-00192-7","url":null,"abstract":"<p><p>Simulators for virtual surgery training need to perform complex calculations very quickly to provide realistic haptic and visual interactions with a user. The complexity is further increased by the addition of cuts to virtual organs, such as would be needed for performing tumor resection. A common method for achieving large performance improvements is to make use of the graphics hardware (GPU) available on most general-use computers. Programming GPUs requires data structures that are more rigid than on conventional processors (CPU), making that data more difficult to update. We propose a new method for structuring graph data, which is commonly used for physically based simulation of soft tissue during surgery, and deformable objects in general. Our method aligns all nodes of the graph in memory, independently from the number of edges they contain, allowing for local modifications that do not affect the rest of the structure. Our method also groups memory transfers so as to avoid updating the entire graph every time a small cut is introduced in a simulated organ. We implemented our data structure as part of a simulator based on a meshless method. Our tests show that the new GPU implementation, making use of the new graph structure, achieves a 10 times improvement in computation times compared to the previous CPU implementation. The grouping of data transfers into batches allows for a 80-90% reduction in the amount of data transferred for each graph update, but accounts only for a small improvement in performance. The data structure itself is simple to implement and allows simulating increasingly complex models that can be cut at interactive rates.</p>","PeriodicalId":37424,"journal":{"name":"Advanced Modeling and Simulation in Engineering Sciences","volume":"8 1","pages":"7"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s40323-021-00192-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39877312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Phase-inherent linear visco-elasticity model for infinitesimal deformations in the multiphase-field context 多相场环境下无穷小变形的相固有线性粘弹性模型

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2020-12-01 DOI: 10.1186/s40323-020-00178-x

Felix K. Schwab, A. Reiter, C. Herrmann, D. Schneider, B. Nestler

引用次数: 1

Finite cell method for functionally graded materials based on V-models and homogenized microstructures 基于v型模型和均质微结构的功能梯度材料有限单元法

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2020-12-01 DOI: 10.1186/s40323-020-00182-1

B. Wassermann, N. Korshunova, S. Kollmannsberger, E. Rank, G. Elber

引用次数: 2

Application of an iterative Golub-Kahan algorithm to structural mechanics problems with multi-point constraints 迭代Golub-Cahan算法在多点约束结构力学问题中的应用

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2020-11-17 DOI: 10.1186/s40323-020-00181-2

C. Kruse, V. Darrigrand, N. Tardieu, M. Arioli, U. Rüde

引用次数: 3