Apogee Measurement of a Polyvinyl Chloride Rocket Using a Sugar Composite Propellant and Open Source Computer Rocket Simulation Software

AbstractGeographic analysis has long supported transport plans that are appropriate to local contexts. Many incumbent ‘tools of the trade’ are proprietary and were developed to support growth in motor traffic, limiting their utility for transport planners who have been tasked with twenty-first century objectives such as enabling citizen participation, reducing pollution, and increasing levels of physical activity by getting more people walking and cycling. Geographic techniques—such as route analysis, network editing, localised impact assessment and interactive map visualisation—have great potential to support modern transport planning priorities. The aim of this paper is to explore emerging open source tools for geographic analysis in transport planning, with reference to the literature and a review of open source tools that are already being used. A key finding is that a growing number of options exist, challenging the current landscape of proprietary tools. These can be classified as command-line interface, graphical user interface or web-based user interface tools and by the framework in which they were implemented, with numerous tools released as R, Python and JavaScript packages, and QGIS plugins. The review found a diverse and rapidly evolving ‘ecosystem’ tools, with 25 tools that were designed for geographic analysis to support transport planning outlined in terms of their popularity and functionality based on online documentation. They ranged in size from single-purpose tools such as the QGIS plugin AwaP to sophisticated stand-alone multi-modal traffic simulation software such as MATSim, SUMO and Veins. Building on their ability to re-use the most effective components from other open source projects, developers of open source transport planning tools can avoid ‘reinventing the wheel’ and focus on innovation, the ‘gamified’ A/B Street https://github.com/dabreegster/abstreet/#abstreet simulation software, based on OpenStreetMap, a case in point. The paper, the source code of which can be found at https://github.com/robinlovelace/open-gat, concludes that, although many of the tools reviewed are still evolving and further research is needed to understand their relative strengths and barriers to uptake, open source tools for geographic analysis in transport planning already hold great potential to help generate the strategic visions of change and evidence that is needed by transport planners in the twenty-first century.

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A CUDA-based GPU engine for gprMax: Open source FDTD electromagnetic simulation software

Computer Physics Communications ◽

10.1016/j.cpc.2018.11.007 ◽

2019 ◽

Vol 237 ◽

pp. 208-218 ◽

Cited By ~ 19

Author(s):

Craig Warren ◽

Antonios Giannopoulos ◽

Alan Gray ◽

Iraklis Giannakis ◽

Alan Patterson ◽

...

Keyword(s):

Open Source ◽

Simulation Software ◽

Electromagnetic Simulation

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Open-source simulation software to evaluate exploration prospects in a fast and simple workflow

10.3997/2214-4609.202restech12 ◽

2020 ◽

Author(s):

Lex Rijkels

Keyword(s):

Open Source ◽

Simulation Software

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PorePy: an open-source software for simulation of multiphysics processes in fractured porous media

Computational Geosciences ◽

10.1007/s10596-020-10002-5 ◽

2020 ◽

Cited By ~ 1

Author(s):

Eirik Keilegavlen ◽

Runar Berge ◽

Alessio Fumagalli ◽

Michele Starnoni ◽

Ivar Stefansson ◽

...

Keyword(s):

Porous Media ◽

Open Source ◽

Open Source Software ◽

Fractured Rocks ◽

Fractured Reservoirs ◽

Simulation Software ◽

Coupled Processes ◽

Fracture Networks ◽

Flow And Transport ◽

Multiphysics Problems

Abstract Development of models and dedicated numerical methods for dynamics in fractured rocks is an active research field, with research moving towards increasingly advanced process couplings and complex fracture networks. The inclusion of coupled processes in simulation models is challenged by the high aspect ratio of the fractures, the complex geometry of fracture networks, and the crucial impact of processes that completely change characteristics on the fracture-rock interface. This paper provides a general discussion of design principles for introducing fractures in simulators, and defines a framework for integrated modeling, discretization, and computer implementation. The framework is implemented in the open-source simulation software PorePy, which can serve as a flexible prototyping tool for multiphysics problems in fractured rocks. Based on a representation of the fractures and their intersections as lower-dimensional objects, we discuss data structures for mixed-dimensional grids, formulation of multiphysics problems, and discretizations that utilize existing software. We further present a Python implementation of these concepts in the PorePy open-source software tool, which is aimed at coupled simulation of flow and transport in three-dimensional fractured reservoirs as well as deformation of fractures and the reservoir in general. We present validation by benchmarks for flow, poroelasticity, and fracture deformation in porous media. The flexibility of the framework is then illustrated by simulations of non-linearly coupled flow and transport and of injection-driven deformation of fractures. All results can be reproduced by openly available simulation scripts.

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Digitally Designed Airport Terminal Using Wind Performance Analysis

Buildings ◽

10.3390/buildings9030059 ◽

2019 ◽

Vol 9 (3) ◽

pp. 59 ◽

Cited By ~ 2

Author(s):

Lenka Kabošová ◽

Stanislav Kmeť ◽

Dušan Katunský

Keyword(s):

Performance Evaluation ◽

Open Source ◽

Architectural Design ◽

Design Method ◽

Simulation Software ◽

Architectural Practice ◽

Conceptual Design Phase ◽

Complex Design ◽

Airport Terminal ◽

And Performance

Over the past few decades, digital tools have become indispensable in the field of architecture. The complex design tasks that make up architectural design methods benefit from utilizing advanced simulation software and, consequently, design solutions have become more nature-adapted and site-specific. Computer simulations and performance-oriented design enable us to address global challenges, such as climate change, in the preliminary conceptual design phase. In this paper, an innovative architectural design method is introduced. This method consists of the following: (1) an analysis of the local microclimate, specifically the wind situation; (2) the parametric shape generation of the airport terminal incorporating wind as a form-finding factor; (3) Computational Fluid Dynamics (CFD) analysis; and (4) wind-performance studies of various shapes and designs. A combination of programs, such as Rhinoceros (Rhino), and open-source plug-ins, such as Grasshopper and Swift, along with the post-processing software Paraview, are utilized for the wind-performance evaluation of a case study airport terminal in Reykjavik, Iceland. The objective of this wind-performance evaluation is to enhance the local wind situation and, by employing the proposed architectural shape, to regulate the wind pattern to find the optimal wind flow around the designed building. By utilizing the aforementioned software, or other open-source software, the proposed method can be easily integrated into regular architectural practice.

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Problem Based Learning on Cloud Economics Analysis Using Open Source Simulation

International Journal of Online Engineering (iJOE) ◽

10.3991/ijoe.v12i06.5147 ◽

2016 ◽

Vol 12 (06) ◽

pp. 4 ◽

Cited By ~ 1

Author(s):

Irfan Syamsuddin

Keyword(s):

Open Source ◽

Open Source Software ◽

Data Center ◽

High Speed ◽

Energy Savings ◽

Problem Based Learning ◽

Simulation Software ◽

Paper Report ◽

Actual Case ◽

Economics Analysis

The paper report the applicablity of open source simulation software called GreenCloud to assist a novel Problem Based Learning in a laboratory environment. The actual case of Indonesia government plan to deploy cloud based data center infrastructure was picked up as the actual case. In such case, cloud economics analysis is required along with technical one. An open source software called GreenCloud is suitebale to perform the simulation and analysis of cloud computing from economics perspective. It was applied into three models of cloud architecture namely Two-Tier, Three-Tier and Three-Tier High Speed and then analyzed in terms of their energy consumptions based on three options of cloud economics scheme, namely i) non energy savings, ii) Dynamics Voltage and Frequency Scaling (DVFS) and iii) Dynamics Shutdown (DNS).

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CRIMSON: An open-source software framework for cardiovascular integrated modelling and simulation

PLoS Computational Biology ◽

10.1371/journal.pcbi.1008881 ◽

2021 ◽

Vol 17 (5) ◽

pp. e1008881

Author(s):

Christopher J. Arthurs ◽

Rostislav Khlebnikov ◽

Alex Melville ◽

Marija Marčan ◽

Alberto Gomez ◽

...

Keyword(s):

Open Source ◽

Mesh Generation ◽

Three Dimensional ◽

Simulation Software ◽

Modelling And Simulation ◽

Integrated Modelling ◽

Software Environment ◽

Element Mesh ◽

Wide Audience ◽

Computational Haemodynamics

In this work, we describe the CRIMSON (CardiovasculaR Integrated Modelling and SimulatiON) software environment. CRIMSON provides a powerful, customizable and user-friendly system for performing three-dimensional and reduced-order computational haemodynamics studies via a pipeline which involves: 1) segmenting vascular structures from medical images; 2) constructing analytic arterial and venous geometric models; 3) performing finite element mesh generation; 4) designing, and 5) applying boundary conditions; 6) running incompressible Navier-Stokes simulations of blood flow with fluid-structure interaction capabilities; and 7) post-processing and visualizing the results, including velocity, pressure and wall shear stress fields. A key aim of CRIMSON is to create a software environment that makes powerful computational haemodynamics tools accessible to a wide audience, including clinicians and students, both within our research laboratories and throughout the community. The overall philosophy is to leverage best-in-class open source standards for medical image processing, parallel flow computation, geometric solid modelling, data assimilation, and mesh generation. It is actively used by researchers in Europe, North and South America, Asia, and Australia. It has been applied to numerous clinical problems; we illustrate applications of CRIMSON to real-world problems using examples ranging from pre-operative surgical planning to medical device design optimization.

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CRIMSON: An Open-Source Software Framework for Cardiovascular Integrated Modelling and Simulation

10.1101/2020.10.14.339960 ◽

2020 ◽

Author(s):

C.J. Arthurs ◽

R. Khlebnikov ◽

A. Melville ◽

M. Marčan ◽

A. Gomez ◽

...

Keyword(s):

Open Source ◽

Mesh Generation ◽

Simulation Software ◽

Modelling And Simulation ◽

Integrated Modelling ◽

Software Environment ◽

Element Mesh ◽

Wide Audience ◽

Link Type ◽

Computational Haemodynamics

AbstractIn this work, we describe the CRIMSON (CardiovasculaR Integrated Modelling and SimulatiON) software environment. CRIMSON provides a powerful, customizable and user-friendly system for performing three-dimensional and reduced-order computational haemodynamics studies via a pipeline which involves: 1) segmenting vascular structures from medical images; 2) constructing analytic arterial and venous geometric models; 3) performing finite element mesh generation; 4) designing, and 5) applying boundary conditions; 6) running incompressible Navier-Stokes simulations of blood flow with fluid-structure interaction capabilities; and 7) post-processing and visualizing the results, including velocity, pressure and wall shear stress fields. A key aim of CRIMSON is to create a software environment that makes powerful computational haemodynamics tools accessible to a wide audience, including clinicians and students, both within our research laboratories and throughout the community. The overall philosophy is to leverage best-in-class open source standards for medical image processing, parallel flow computation, geometric solid modelling, data assimilation, and mesh generation. It is actively used by researchers in Europe, North and South America, Asia, and Australia. It has been applied to numerous clinical problems; we illustrate applications of CRIMSON to real-world problems using examples ranging from pre-operative surgical planning to medical device design optimization. CRIMSON binaries for Microsoft Windows 10, documentation and example input files are freely available for download from www.crimson.software, and the source code with compilation instructions is available on GitHub https://github.com/carthurs/CRIMSONFlowsolver (CRIMSON Flowsolver) under the GPL v3.0 license, and https://github.com/carthurs/CRIMSONGUI (CRIMSON GUI), under the AGPL v3.0 license. Support is available on the CRIMSON Google Groups forum, located at https://groups.google.com/forum/#!forum/crimson-users.

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