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We present a novel tensor network algorithm to solve the time-dependent, gray thermal radiation transport equation. The method invokes a tensor train (TT) decomposition for the specific intensity. The efficiency of this approach is dictated…

Predictive simulations of complex systems are essential for applications ranging from weather forecasting to drug design. The veracity of these predictions hinges on their capacity to capture the effective system dynamics. Massively…

计算物理 · 物理学 2021-10-20 Pantelis R. Vlachas , Georgios Arampatzis , Caroline Uhler , Petros Koumoutsakos

This paper presents an efficient and compact MATLAB code for three-dimensional stress-based sensitivity analysis. The 146 lines code includes the finite element analysis and p-norm stress sensitivity analysis based on the adjoint method.…

数值分析 · 数学 2021-04-06 Hao Deng , Praveen S. Vulimiri , Albert C. To

In the era of big data, effectively compressing large datasets while performing complex mathematical operations is crucial. Tensor-based decomposition methods have shown superior compression capabilities with minimal loss of accuracy…

分布式、并行与集群计算 · 计算机科学 2026-05-18 Md Taufique Hussain , Grey Ballard , Aditya Devarakonda , Srinivas Eswar , Naman Pesricha , Vishwas Rao

High-resolution simulations of particle-based kinetic plasma models typically require a high number of particles and thus often become computationally intractable. This is exacerbated in multi-query simulations, where the problem depends on…

数值分析 · 数学 2023-07-10 Jan S. Hesthaven , Cecilia Pagliantini , Nicolò Ripamonti

Understanding thermal stress evolution in metal additive manufacturing (AM) is crucial for producing high-quality components. Recent advancements in machine learning (ML) have shown great potential for modeling complex multiphysics problems…

机器学习 · 计算机科学 2024-12-30 R. Sharma , Y. B. Guo

Estimating parameters of Partial Differential Equations (PDEs) is of interest in a number of applications such as geophysical and medical imaging. Parameter estimation is commonly phrased as a PDE-constrained optimization problem that can…

数值分析 · 数学 2018-10-15 Samy Wu Fung , Lars Ruthotto

In this manuscript the development of a reduced order model for the analysis of long flexible cylinders in an offshore environment is proposed. In particular the focus is on the modelling of the vortex induced vibrations (VIV) and the aim…

计算工程、金融与科学 · 计算机科学 2018-10-03 Giovanni Stabile , Hermann G. Matthies , Claudio Borri

This paper presents the effectiveness of various stress conditions (mainly voltage and frequency) on detecting the resistive shorts and open defects in deep sub-micron embedded memories in an industrial environment. Simulation studies on…

硬件体系结构 · 计算机科学 2011-11-09 Ananta K. Majhi , Mohamed Azimane , Guido Gronthoud , Maurice Lousberg , Stefan Eichenberger , Fred Bowen

In this work we will introduce the A-V-A formulation based iterative algorithm method (IAM) for simulating the magnetization current of high temperature superconductors. This new method embedded in ANSYS can simulate the critical state…

超导电性 · 物理学 2021-01-11 Kai Zhang , Sebastian Hellmann , Marco Calvi , Thomas Schmidt , Lucas Brouwer

Micro-Raman spectroscopy was employed to study the near-surface stress distributions and origins in Si around through silicon vias (TSVs) at both room temperature and elevated temperatures for Cu-filled and CNT-filled TSV samples. From the…

材料科学 · 物理学 2017-08-23 Ye Zhu , Kaushik Ghosh , Hong Yu Li , Yiheng Lin , Chuan Seng Tan , Guangrui Xia

Computational Fluid Dynamics (CFD) simulations are often constrained by the memory-bound nature of sparse matrix-vector operations, which eventually limits performance on modern high-performance computing (HPC) systems. This work introduces…

Model order reduction seeks to approximate large-scale dynamical systems by lower-dimensional reduced models. For linear systems, a small reduced dimension directly translates into low computational cost, ensuring online efficiency. This…

数值分析 · 数学 2025-12-17 Björn Liljegren-Sailer

Temperature affects not only the reliability but also the performance, power, and cost of the embedded system. This paper proposes a thermal-aware task allocation and scheduling algorithm for embedded systems. The algorithm is used as a…

硬件体系结构 · 计算机科学 2011-11-09 W. -L. Hung , Y. Xie , N. Vijaykrishnan , M. Kandemir , M. J. Irwin

Thermoelectric generation (TEG) has increasingly drawn attention for being environmentally friendly. A few researches have focused on improving TEG efficiency at the system level on vehicle radiators. The most recent reconfiguration…

其他计算机科学 · 计算机科学 2018-04-06 Hanchen Yang , Feiyang Kang , Caiwen Ding , Ji Li , Jaemin Kim , Donkyu Baek , Shahin Nazarian , Xue Lin , Paul Bogdan , Naehyuck Chang

In power system dynamic simulation, up to 90% of the computational time is devoted to solve the network equations, i.e., a set of linear equations. Traditional approaches are based on sparse LU factorization, which is inherently sequential.…

系统与控制 · 电气工程与系统科学 2021-07-06 Lu Zhang , Bin Wang , Vivek Sarin , Weiping Shi , P. R. Kumar , Le Xie

We propose a framework for discrete scientific data compression based on the tensor-train (TT) decomposition. Our approach is tailored to handle unstructured output data from discrete element method (DEM) simulations, demonstrating its…

数值分析 · 数学 2022-10-18 Saibal De , Eduardo Corona , Paramsothy Jayakumar , Shravan Veerapaneni

In recent years, numerical methods in industrial applications have evolved from a pure predictive tool towards a means for optimization and control. Since standard numerical analysis methods have become prohibitively costly in such…

计算物理 · 物理学 2021-04-23 Artūrs Bērziņš , Jan Helmig , Fabian Key , Stefanie Elgeti

We present a multi-level delumping method suitable for thermal enhanced oil recovery processes, for which hydrocarbon components are vaporized under high temperatures, move downstream in the gas phase and condense back to the liquid phase.…

计算物理 · 物理学 2020-10-06 Matthias A. Cremon , Margot G. Gerritsen

Accurate knowledge of temperatures in power semiconductor modules is crucial for proper thermal management of such devices. Precise prediction of temperatures allows to operate the system at the physical limit of the device avoiding…

信号处理 · 电气工程与系统科学 2020-06-15 Jakub Ševčík , Václav Šmídl , Ondřej Straka