Heat Transfer in Unfrozen and Frozen Porous Media: Experimental Measurement and Pore‐Scale Modeling
Water Resources Research, Volume 56, Issue 9, September 2020., 2020 Abstract In this work, we conducted a mechanistic study on pore‐scale mechanisms controlling heat transfer in partially saturated porous media at unfrozen and frozen conditions. Experimental measurement of effective thermal conductivity (ETC) of simulated partially saturated sediments was carried out to explore the effect of different parameters ...
Mehrdad Vasheghani Farahani +3 more
wiley +1 more source
Lattice-Boltzmann simulations of traffic-related atmospheric pollutant dispersion in urban areas
8th European Congress on Computational Methods in Applied Sciences and Engineering, 2022 . The developing field of urban physics includes computational fluid dynamics (CFD) as a tool to model wind comfort, heat management and pollutant dispersion in cities.
M. Pasquier, S. Jay, P. Sagaut
semanticscholar +1 more source
Softening Up the Network for Scientific Applications [PDF]
, 2017 Scientific applications demand huge computational power connected through fast networks. They are developed using parallel kernel methods, usually implemented with the Message Passing Interface (MPI), presenting well-behaved communication patterns across
Bidkar, Sarvesh +6 more
core +2 more sources
Binary fluid flow simulations with free energy lattice Boltzmann methods [PDF]
, 2023 We use free energy lattice Boltzmann methods to simulate shear and extensional flows of a binary fluid in two and three dimensions. To this end, two classical configurations are digitally twinned, namely a parallel-band device for binary shear flow and a
Avis, Samuel J. +4 more
core +2 more sources
Research Software Engineering in OpenLB: Refactoring a Legacy Code to State-Of-The-Art Performance
, 2023 Lattice Boltzmann Methods (LBM) are an established approach for simulating a wide variety of transport phenomena. The software framework OpenLB has been in continuous development for 15 years and counting as one of the major open source LBM research codes. Due to the need to develop the library alongside the primary research of the involved scientists,
Kummerländer, Adrian +1 more
openaire +1 more source
Lattice Boltzmann Performance Engineering in OpenLB
, 2022 Lattice Boltzmann Methods (LBM) are an established mesoscopic approach for simulating a wide variety of transport phenomena. While they are uniquely suited to HPC usage, obtaining maximum performance across different targets and applications is an active topic of research.
openaire +1 more source
Efficient Process-to-Node Mapping Algorithms for Stencil Computations
, 2020 Good process-to-compute-node mappings can be decisive for well performing HPC applications. A special, important class of process-to-node mapping problems is the problem of mapping processes that communicate in a sparse stencil pattern to Cartesian grids.
Hunold, Sascha +4 more
core +1 more source
Extreme-Scale Block-Structured Adaptive Mesh Refinement
, 2018 In this article, we present a novel approach for block-structured adaptive mesh refinement (AMR) that is suitable for extreme-scale parallelism. All data structures are designed such that the size of the meta data in each distributed processor memory ...
Rüde, Ulrich, Schornbaum, Florian
core +1 more source
Pore-scale lattice Boltzmann simulations of inertial flows in realistic porous media: a first principle analysis of the Forchheimer relationship [PDF]
, 2011 With recent advances in the capabilities of high performance computing (HPC) platforms and the relatively simple representation of complex geometries of porous media, lattice Boltzmann method (LBM) has gained popularity as a means of solving fluid flow ...
Chukwudozie, Chukwudi Paul
core +2 more sources
Managing Communication Latency-Hiding at Runtime for Parallel Programming Languages and Libraries
, 2012 This work introduces a runtime model for managing communication with support for latency-hiding. The model enables non-computer science researchers to exploit communication latency-hiding techniques seamlessly.
Kristensen, Mads Ruben Burgdorff +1 more
core +1 more source