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Developing high power density electronics requires effective and highly reliable cooling techniques with low thermal resistance and high heat removal capacity. Loop heat pipes (LHPs) are one kind of two-phase heat transfer device which can…

Fluid Dynamics · Physics 2025-09-03 Xu Huang , Geert Buckinx , Maria Rosaria Vetrano , Martine Baelmans

This paper introduces an experimental configuration, called the Prandtl-Meyer plus duct arrangement (PMD), designed to study high-enthalpy radiating flows undergoing nonequilibrium de-excitation. The original design proposed by Wilson,…

Fluid Dynamics · Physics 2025-01-17 Zhuo Liu , Tiantian Chen , Jiaao Hao , Chih-yung Wen , Qiu Wang , Sangdi Gu

Designing urban spaces that provide pedestrian wind comfort and safety requires time-resolved Computational Fluid Dynamics (CFD) simulations, but their current computational cost makes extensive design exploration impractical. We introduce…

Machine Learning · Computer Science 2026-04-06 Janne Perini , Rafael Bischof , Moab Arar , Ayça Duran , Michael A. Kraus , Siddhartha Mishra , Bernd Bickel

Urbanization has underscored the importance of understanding the pedestrian wind environment in urban and architectural design contexts. Pedestrian Wind Comfort (PWC) focuses on the effects of wind on the safety and comfort of pedestrians…

Computational Engineering, Finance, and Science · Computer Science 2023-11-15 Alfredo Vicente Clemente , Knut Erik Teigen Giljarhus , Luca Oggiano , Massimiliano Ruocco

The addition of metals to any gas can significantly alter its evolution by increasing the rate of radiative cooling. In star-forming environments, enhanced cooling can potentially lead to fragmentation and the formation of low-mass stars,…

Astrophysics · Physics 2009-11-13 Britton D. Smith , Steinn Sigurdsson , Tom Abel

Context. Comets are small celestial bodies made of ice, dust, and rock that orbit the Sun. Understanding their behavior as they warm up at perihelion unveils many pieces of information about the interior and general morphology of the ices…

Earth and Planetary Astrophysics · Physics 2023-07-19 Carla Tamai , Belen Mate , Stephanie Cazaux , Miguel Angel Satorre

Filament-based chemical vapor deposition (CVD) for silicon (Si) coatings is often treated as a straightforward adaptation of planar deposition, just with a cylindrical substrate. But this overlooks a fundamental shift in how transport…

Intensifying climate change will lead to more extreme weather events, including heavy rainfall and drought. Accurate stream flow prediction models which are adaptable and robust to new circumstances in a changing climate will be an…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Aleksis Pirinen , Olof Mogren , Mårten Västerdal

Turbulent flow has been extensively studied using computational fluid dynamics (CFD) simulations since turbulent flow regime is so frequently encountered in both academic and engineering applications. The high-fidelity simulation of the…

Fluid Dynamics · Physics 2024-05-21 Minghan Chu

This work presents a comparison of the structural, chemical and electronic properties of multi-layer graphene grown on SiC(000-1) by using two different growth approaches: thermal decomposition and chemical vapor deposition (CVD). The…

Materials Science · Physics 2018-05-03 D. Convertino , A. Rossi , V. Miseikis , V. Piazza , C. Coletti

We study compressible fluid flow in narrow two-dimensional channels using a novel molecular dynamics simulation method. In the simulation area, an upstream source is maintained at constant density and temperature while a downstream…

Condensed Matter · Physics 2009-10-22 M. Sun , C. Ebner

We present an experimental technique for determining the pH and the total carbon concentration when \ch{CO2} diffuses and flows in water. The technique employs three different pH indicators, which, when combined with an image analysis…

We present a detailed model for the thermal balance, chemistry, and radiative transfer within quiescent dense molecular cloud cores that contain a central protostar. Large variations in the gas temperature are expected to affect the…

Astrophysics · Physics 2009-10-30 S. D. Doty , D. A. Neufeld

The investigation of the possibility of optical refrigeration (OR) on zinc-blende cadmium selenide/cadmium sulfide (CdSe/CdS) core/shell structure quantum dots (QDs) has been carried out. Quality samples were synthesized in our lab, and…

Materials Science · Physics 2022-09-14 Muchuan Hua , Ricardo S. Decca

Robustly modeling the inner edge of the habitable zone is essential for determining the most promising potentially habitable exoplanets for atmospheric characterization. Global climate models (GCMs) have become the standard tool for…

Earth and Planetary Astrophysics · Physics 2019-12-25 Jun Yang , Jeremy Leconte , Eric T. Wolf , Timonthy Merlis , Daniel D. B. Koll , Francois Forget , Dorian S. Abbot

Optomechanical systems provide a versatile platform for precision measurements and investigations of fundamental physics, where bringing macroscopic resonators into the quantum regime is a widely pursued goal. Achieving such quantum…

Warm dense matter (WMD) describes an intermediate phase, between condensed matter and classical plasmas, found in natural and man-made systems. In a laboratory setting, WDM needs to be created dynamically. It is typically laser or…

Plasma Physics · Physics 2022-03-14 Alexander J. White , Lee A. Collins , Katarina Nichols , S. X. Hu

Modeling the effect of complex terrain on high Reynolds number flows is important to improve our understanding of flow dynamics in wind farms and the dispersion of pollen and pollutants in hilly or mountainous terrain as well as the flow in…

Computational Physics · Physics 2021-03-11 Luoqin Liu , Richard J. A. M. Stevens

Score Distillation Sampling (SDS) has made significant strides in distilling image-generative models for 3D generation. However, its maximum-likelihood-seeking behavior often leads to degraded visual quality and diversity, limiting its…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Runjie Yan , Yinbo Chen , Xiaolong Wang

Brown dwarfs are essential targets for understanding planetary and sub-stellar atmospheres across a wide range of thermal and chemical conditions. As surveys continue to probe ever deeper, and as observing capabilities continue to improve,…

Earth and Planetary Astrophysics · Physics 2021-11-24 Shih-Yun Tang , Tyler D. Robinson , Mark S. Marley , Natasha E. Batalha , Roxana Lupu , L. Prato