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Heat engines are fundamental physical objects to develop nonequilibrium thermodynamics. The thermodynamic performance of the heat engine is determined by the choice of cycle and time-dependence of parameters. Here, we propose a systematic…

统计力学 · 物理学 2021-09-06 Rongxing Xu

Reduced-order models of flame dynamics can be used to predict and mitigate the emergence of thermoacoustic oscillations in the design of gas turbine and rocket engines. This process is hindered by the fact that these models, although often…

流体动力学 · 物理学 2020-07-07 Hans Yu , Matthew P. Juniper , Luca Magri

The designer's preoccupation to reduce the energy needs and get a better thermal quality of ambiances helped in the development of several packages simulating the dynamic behaviour of buildings. This paper shows the adaptation of a method…

计算工程、金融与科学 · 计算机科学 2012-12-26 H. Boyer , J. P. Chabriat , B. Grondin-Perez , C. Tourrand , J. Brau

The multiscale nature of turbulent combustion necessitates accurate and computationally efficient methods for direct numerical simulations (DNS). The field has long been dominated by high-order finite differences, which lack the flexibility…

流体动力学 · 物理学 2024-01-24 Jack R. C. King

The study of thrombosis is crucial to understand and develop new therapies for diseases like deep vein thrombosis, diabetes related strokes, pulmonary embolism etc. The last two decades have seen an exponential growth in studies related to…

医学物理 · 物理学 2019-11-28 Sumith Yesudasan , Rodney D. Averett

The context of the present paper is stochastic thermodynamics - an approach to nonequilibrium thermodynamics rooted within the broader framework of stochastic control. In contrast to the classical paradigm of Carnot engines, we herein…

系统与控制 · 电气工程与系统科学 2021-01-08 Rui Fu , Olga Movilla Miangolarra , Amirhossein Taghvaei , Yongxin Chen , Tryphon T. Georgiou

Reliable predictions of the behaviour of chemical systems are essential across many industries, from nanoscale engineering over validation of advanced materials to nanotoxicity assessment in health and medicine. For the future we therefore…

化学物理 · 物理学 2021-03-05 Judith B. Rommel

Distributed combustion, often associated with the low-oxygen condition, offers ultra-low NOX emission. However, it was recently achieved without combustion air dilution or internal flue gas recirculation, using a distinct approach called…

流体动力学 · 物理学 2022-04-20 Dániel Füzesi , Milan Malý , Jan Jedelský , Viktor Józsa

Polymer composite performance depends significantly on the polymer matrix, additives, processing conditions, and measurement setups. Traditional physics-based optimization methods for these parameters can be slow, labor-intensive, and…

In many cyber-physical systems, imaging can be an important but expensive or 'difficult to deploy' sensing modality. One such example is detecting combustion instability using flame images, where deep learning frameworks have demonstrated…

机器学习 · 计算机科学 2021-10-07 Tryambak Gangopadhyay , Vikram Ramanan , Satyanarayanan R Chakravarthy , Soumik Sarkar

The construction of business process models has become an important requisite in the analysis and optimization of processes. The success of the analysis and optimization efforts heavily depends on the quality of the models. Therefore, a…

软件工程 · 计算机科学 2015-11-13 Jan Claes , Irene Vanderfeesten , Jakob Pinggera , Hajo A. Reijers , Barbara Weber , Geert Poels

Buildings account for a substantial portion of global energy consumption. Reducing buildings' energy usage primarily involves obtaining data from building systems and environment, which are instrumental in assessing and optimizing the…

人工智能 · 计算机科学 2024-04-19 Miracle Aniakor , Vinicius V. Cogo , Pedro M. Ferreira

The relationship between the thermodynamic and computational characteristics of dynamical physical systems has been a major theoretical interest since at least the 19th century, and has been of increasing practical importance as the…

Modeling processes are the activities of capturing and representing processes and control of their dynamic behavior. Desired features of the model include capture of relevant aspects of a real phenomenon, understandability, and completeness…

软件工程 · 计算机科学 2017-07-28 Sabah Al-Fedaghi , Haya Alahmad

Validation of building energy simulation programs is of major interest to both users and modellers. To achieve such a task, it is essential to apply a methodology based on a priori test and empirical validation. A priori test consists in…

计算工程、金融与科学 · 计算机科学 2012-12-26 Ted Soubdhan , Thierry Alex Mara , Harry Boyer , Anis Younès

Because fuel efficiency is significantly impacted by the timing of combustion in internal combustion engines, accurate control of combustion phasing is critical. In this paper, a nonlinear combustion phasing model is introduced and…

系统与控制 · 电气工程与系统科学 2019-07-23 Wenbo Sui , Carrie M. Hall

Ignition capability is a critical design constraint for aeronautical gas turbines. However the current trend toward overall lean burn is detrimental to the engine ignition and relight and the ignition system must be adapted to ensure a fast…

流体动力学 · 物理学 2020-10-20 Lucas Esclapez , Félix Collin-Bastiani , Eleonore Riber , Bénédicte Cuenot

The layout optimization of the heat conduction is essential during design in engineering, especially for thermal sensible products. When the optimization algorithm iteratively evaluates different loading cases, the traditional numerical…

机器学习 · 计算机科学 2022-01-26 Hao Ma , Yang Sun , Mario Chiarelli

We introduce a simple mathematical model for bushfires accounting for temperature diffusion in the presence of a combustion term which is activated above a given ignition state. The model also takes into consideration the effect of the…

偏微分方程分析 · 数学 2024-05-31 Serena Dipierro , Enrico Valdinoci , Glen Wheeler , Valentina-Mira Wheeler

Fire effects are widely used in various computer graphics applications such as visual effects and video games. Modeling the shape and appearance of fire phenomenon is challenging as the underlying effects are driven by complex laws of…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Gara Dorta , Luca Benedetti , Dmitry Kit , Yong-Liang Yang