Review
Engineering, Mechanical
Stefano Signetti, Andreas Heine
Summary: This work aims to address the extension of established modeling approaches for metals in terminal ballistics towards higher impact velocities, below the threshold of purely hydrodynamic behavior. The transition regime, characterized by the coexistence of different multi-physics phenomena, is of paramount interest and requires a thorough review of relevant literature for impact modeling of metals at velocities lying in this regime.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Astronomy & Astrophysics
Huacheng Li, Zongyu Yue, Yangting Lin, Kaichang Di, Nan Zhang, Jianzhong Liu
Summary: The olivine and Mg-rich spinel observed in Das crater are unlikely to have originated from the lunar lower crust or mantle. Numerical simulations suggest that the crater was formed by an impact from a 6.0 km diameter projectile with a velocity of 10 km/s and an impact angle of 70 degrees. The simulation results also indicate that some projectile materials can survive the impact and be distributed within the crater.
Article
Engineering, Aerospace
Martin Schimmerohn, Pascal Matura, Erkai Watson, Nathanael Durr, Anja Altes, Tiziana Cardone, Don de Wilde, Holger Krag, Frank Schaefer
Summary: The research suggests enhancing the database of hypervelocity spacecraft collisions through numerical simulations, focusing on the effects of on-orbit hypervelocity collisions. The study emphasizes the significant impact of collision geometry on fragmentation damage and area-to-mass distributions.
Article
Chemistry, Multidisciplinary
Jonathan Leliaert, Javier Ortega-Julia, Daniel Ortega
Summary: This paper discusses the impact of interactions on the thermal behavior of magnetic nanoparticles and proposes an equation to address this issue. The study found that in larger fields, the heat dissipation caused by interactions tends to be more uniformly distributed among individual particles, which may have implications for magnetic particle hyperthermia.
Article
Chemistry, Multidisciplinary
Adam G. Taylor
Summary: This paper presents the results of numerical hydrocode analysis to confirm the expected incident overpressure and impulse from ground explosions, as well as the effect of blast waves on mitigation barriers.
APPLIED SCIENCES-BASEL
(2022)
Article
Astronomy & Astrophysics
Shigeru Wakita, Brandon C. Johnson, Jason M. Soderblom, Jahnavi Shah, Catherine D. Neish
Summary: As the only icy satellite with a thick atmosphere and liquids on its surface, Titan presents a unique case for studying impact cratering. The presence of liquid methane and its effects on crater morphology make it difficult to identify. Numerical simulations reveal that a methane-saturated layer over a methane-clathrate layer affects crater formation, resulting in smaller craters and altered crater morphology. A thick methane-saturated layer could explain the scarcity of craters in low-elevation regions on Titan.
PLANETARY SCIENCE JOURNAL
(2022)
Article
Construction & Building Technology
Jiankai Dong, Wenke Zheng, Mengjie Song, Zhihua Chen, Yiqiang Jiang
Summary: The study introduced a new type of hybrid radiant and convective heating terminal and numerically investigated its heating performance. Results showed that increasing fin height can enhance total heating flux and metal weight, while increasing fin pitch and pipe spacing can reduce heating efficiency and metal weight.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Geochemistry & Geophysics
V. J. Bray, J. J. Hagerty, G. S. Collins
Summary: This study investigates the formation mechanism and sea depth of the Flynn Creek marine target impact crater through simulations and field observations. The research reveals that the shock pressure and central peak formation are closely related to the sea depth. The study proposes new requirements for drilling marine impact sites and provides a method for accessing mineral indicators that can help determine the formation mechanism of impact craters.
METEORITICS & PLANETARY SCIENCE
(2022)
Article
Engineering, Environmental
Himanshu Goyal, Sunitha Sadula, Dionisios G. Vlachos
Summary: This study investigates the impact of selective microwave heating on multiphase reactors, focusing on slurry reactors with solid particles dispersed in liquid. Through experiments, theory, and simulations, they propose an ideal reactor and analytical expressions to predict temperature evolution. The results show a strong influence of solid material and concentration on the heating rate of slurries.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Peter Lorenzen, Carlos Alvarez-Bel
Summary: This study introduces a method to evaluate the average variable costs of heating plants supplying district heating systems, demonstrating the impact of different set-points for supply temperature and thermal power on production costs. The method increases cost transparency and should be used as a variable in optimizing district heating systems.
Article
Thermodynamics
Yingkai Shen, Bin Zheng, Peng Sun, Youtang Wang, Tengfei Gao, Mingchao Wang, Chenglu Qi, Yongqi Liu
Summary: The study found that the distance between the double vacancy and the heating wall affects the heating characteristics of the particle pile, with the minimum heat flux and maximum thermal resistance occurring when the distance is equal to 1 times the particle size. Increasing relative distance between the double vacancy results in an increase in total heat flux on the heating wall and a decrease in thermal resistance of the particle reactor.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Physics, Multidisciplinary
F. Paschke-Bruehl, M. Banjafar, M. Garten, L. G. Huang, B. E. Marre, M. Nakatsutsumi, L. Randolph, T. E. Cowan, U. Schramm, T. Kluge
Summary: This paper presents a computational study on isochoric heating in multi-layered targets under ultra-high intensity laser irradiation. The study finds that spreading the enhanced interface heating to the entirety of the target can result in a more homogeneous temperature distribution, exceeding the mean temperature of a non-layered target. An analytical model is derived to estimate the oscillation period, which can optimize heating and temperature homogeneity. The model can also infer the electron energy.
NEW JOURNAL OF PHYSICS
(2023)
Article
Thermodynamics
Istiaq Jamil Siddique, Arshad Adam Salema
Summary: This paper investigates the application of metallic thermocouples and proposes a method for accurate temperature measurement during microwave heating. The experiment results demonstrate that the placement of the thermocouple affects the temperature and electric field distribution. When placed on the top, the thermocouple interacts with the microwave electric field, leading to localized heating, inaccurate temperature readings, low microwave energy absorbance, and significant microwave leakage. However, when placed from the bottom, it provides reliable temperature readings and high microwave power absorption.
Article
Multidisciplinary Sciences
Zhijun Wang, Xiaojuan Wang
Summary: This study compared the effects of microwave heating (MH) and conventional conductive heating (CH) on methane desorption from coal. The results showed that MH had a higher final total desorbed volume of methane compared to CH, and it effectively changed the coal sample's microstructure, reducing methane adsorption, promoting diffusion, and improving permeability. The rapid temperature rise and changes in the coal's microstructure caused by MH were the main reasons for its superior performance in enhancing coalbed methane recovery.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Mechanical
Jinlian Ren, Xia Ma, Brandon Smith, David Culp
Summary: This work presents a hydrocode PAGOSA with FLIP+MPM to investigate fracture in ductile material, showcasing its ability to capture fracture in material and model complex spall. The study compares numerical results with analytical solutions, experimental data, and other published results, demonstrating the effectiveness of PAGOSA with FLIP+MPM in predicting fracture in ductile materials and accurately simulating spall fracture.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Geosciences, Multidisciplinary
T. Kaku, J. Haruyama, W. Miyake, A. Kumamoto, K. Ishiyama, T. Nishibori, K. Yamamoto, Sarah T. Crites, T. Michikami, Y. Yokota, R. Sood, H. J. Melosh, L. Chappaz, K. C. Howell
GEOPHYSICAL RESEARCH LETTERS
(2017)
Editorial Material
Geosciences, Multidisciplinary
H. J. Melosh
GEOPHYSICAL RESEARCH LETTERS
(2017)
Article
Geosciences, Multidisciplinary
Loic Chappaz, Rohan Sood, Henry J. Melosh, Kathleen C. Howell, David M. Blair, Colleen Milbury, Maria T. Zuber
GEOPHYSICAL RESEARCH LETTERS
(2017)
Article
Geochemistry & Geophysics
M. E. Tabetah, H. J. Melosh
METEORITICS & PLANETARY SCIENCE
(2018)
Article
Geochemistry & Geophysics
M. Hirabayashi, B. A. Howl, C. I. Fassett, J. M. Soderblom, D. A. Minton, H. J. Melosh
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2018)
Article
Geochemistry & Geophysics
Devon Parkos, Aaron Pikus, Alina Alexeenko, H. Jay Melosh
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2018)
Article
Geochemistry & Geophysics
Brandon C. Johnson, Jeffrey C. Andrews-Hanna, Gareth S. Collins, Andrew M. Freed, H. J. Melosh, Maria T. Zuber
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2018)
Article
Geochemistry & Geophysics
Sean E. Wiggins, Brandon C. Johnson, Tim J. Bowling, H. Jay Melosh, Elizabeth A. Silber
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2019)
Article
Geochemistry & Geophysics
K. A. Otto, S. Marchi, A. Trowbridge, H. J. Melosh, H. G. Sizemore
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2019)
Article
Geosciences, Multidisciplinary
Peter B. James, David E. Smith, Paul K. Byrne, Jordan D. Kendall, H. Jay Melosh, Maria T. Zuber
GEOPHYSICAL RESEARCH LETTERS
(2019)
Editorial Material
Multidisciplinary Sciences
H. J. Melosh
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Geosciences, Multidisciplinary
C. Adeene Denton, Brandon C. Johnson, Shigeru Wakita, Andrew M. Freed, H. Jay Melosh, S. Alan Stern
Summary: Through simulating the impact that formed Sputnik Planitia, it was found that Pluto's interior may have included a subsurface ocean over 150 km thick and a hydrated core at the time of impact. The observed lineations antipodal to Sputnik Planitia may have been caused by significant deformation resulting from the impact.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Multidisciplinary Sciences
Sean E. Wiggins, Brandon C. Johnson, Gareth S. Collins, H. Jay Melosh, Simone Marchi
Summary: NASA's GRAIL spacecraft has discovered that the crust of the Moon is highly porous, and this porosity may be formed by large impacts. This finding has significant implications for understanding subsurface habitable environments on early Earth and Mars.
NATURE COMMUNICATIONS
(2022)
Article
Computer Science, Interdisciplinary Applications
Dirk Elbeshausen, Henry J. Melosh
ENGINEERING REPORTS
(2020)