Relevant bibliographies by topics / Autodesk Simulation CFD

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Autodesk Simulation CFD'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Autodesk Simulation CFD"

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Albatayneh, Aiman, Dariusz Alterman, Adrian W. Page, and Behdad Moghtaderi. "WARMING ISSUES ASSOCIATED WITH THE LONG TERM SIMULATION OF HOUSING USING CFD ANALYSIS." Journal of Green Building 11, no. 2 (March 2016): 57–74. http://dx.doi.org/10.3992/jgb.11.2.57.1.

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The determination of internal building air temperature has an impact on the design and performance of a building in measuring thermal comfort and heating and cooling loads. There is software to assist with measuring internal building air temperature such as Autodesk CFD simulation. However, the use of Autodesk CFD simulation for the analysis appears to have an issue with simulations extending over a long term (i.e. months or years) as the internal air temperature in a building keeps rising with time. This paper addresses the challenges encountered using CFD simulation in the modelling of a building for long term performance. A new method to overcome the issue of the progressive rising of internal air temperature using two external air boundaries, one for the external volume (sky boundary) and the other surrounding the building, is suggested in the paper.
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Alexa, Vasile, Imre Kiss, and Sorin Raţiu. "Verofocation of Bernoulli Law using the Software Autodesk Simulation CFD." Analecta Technica Szegedinensia 8, no. 2 (May 12, 2014): 120–27. http://dx.doi.org/10.14232/analecta.2014.2.120-127.

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Using Fluid Dynamics Analysis (CFD) provides the opportunity to achieve a faster and more thorough study of fluid flow processes and is an important step to obtain information that cannot be obtained otherwise. The finite element method is generally more accurate than the finite volume method, but finite volume method can achieve more accurate mass balances using the balance sheet continuity per volume control. Finite volume method is more appropriate when fluid transport, while the finite element method is used more in the calculations of tension or conduction, which satisfies local continuity condition, is of less importance. Fluid Dynamics Analysis (CFD) is used in numerical analyzes, based on a set of mathematical expressions on linear complex equations defining fundamental fluid flow and heat transfer. This paper presents the simulation of air flow through a tube of special construction in interpreting the law of Bernoulli energy. Laboratory systems are shown, respectively simulating the actual fluid flow.
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Thamrin, I., I. Yani, F. H. Yusuf, Z. Abidin, and T. Maseko. "Temperature distribution simulation on Aluminum incineration furnace using Autodesk simulation mechanical CFD 2018." IOP Conference Series: Materials Science and Engineering 857 (June 23, 2020): 012016. http://dx.doi.org/10.1088/1757-899x/857/1/012016.

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Ancas, Ana Diana, Florin-Emilian Turcanu, Mihai Profire, Marina Verdes, and Marius Costel Balan. "Indoor Climate Simulation in a Church During Winter Season." Journal of Applied Engineering Sciences 9, no. 1 (May 1, 2019): 25–28. http://dx.doi.org/10.2478/jaes-2019-0003.

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Abstract In the paper is presented a heating system installed in church and the interior climate generated. Thermal Comfort is the purpose of each designer, since the design stage and has to be ensure for the churchgoers, but even for the interior finishes. The heating system that uses hydronic radiators is evaluated trough the CFD modelling, in order to evaluate pro and contra arguments. The simulation has been made in a 3d simulation software environment, in Autodesk CFD with good results.
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Madej, Jerzy, and Bartłomiej Będkowski. "AIR FLOW ANALYSIS FOR ELECTRICAL MOTOR'S COOLING SYSTEM WITH AUTODESK SIMULATION CFD 2013 PROGRAM." Acta Mechanica et Automatica 7, no. 2 (June 1, 2013): 89–92. http://dx.doi.org/10.2478/ama-2013-0016.

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Abstract In the article the analysis of airflow through electrical motor was conducted and optimal design solution was chosen in order to increase cooling efficiency. Numerical simulations allow to determine the areas of temperature occurrence which may have destructive influence on electrical motor parts and on its safe operation. The numerical calculations of airflow was carried out for two different types of fans as well as for two different housings. An analysis of the construction was carried out by CFD method using Autodesk Simulation CFD 2013. Community results of the analysis, we can conclude that the better solution for machines with fixed direction of rotation is to use instead of the radial the axial fan. For axial fan the motor temperature in the same condition was lower by about 5°C.
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Harun, Zambri, Muhammad Saiful bin Sahari, and Taib Iskandar Mohamad. "Smoke Simulation in an Underground Train Station Using Computational Fluid Dynamic." Applied Mechanics and Materials 663 (October 2014): 366–72. http://dx.doi.org/10.4028/www.scientific.net/amm.663.366.

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The design of the ventilation and fire safety systems for the Johor Bahru Sentral, a semi-underground train station, part of the Integrated Custom, Immigration and Quarantine Complex (ICIQ) is based on normal Malaysian Standards (MS), British Standards and the local fire department’s requirements. However, the large and complex space in the underground station coupled with scheduled diesel-powered locomotives which frequent the station by stopping or passing require detailed simulations. Both ventilation and the fire safety systems employ Computational Fluid Dynamic (CFD) methods to provide realistic balance against the typical calculations based on spread sheets and certain design software. This study compares smoke simulations results performed by the mechanical and fire consultants with the simulations carried out through this project. An assumption of a locomotive catches fire near the main platform is made. The burning locomotive is the source of the smoke while the occupants on platforms and waiting areas are the subjects to escape safely. The process of the simulation includes modelling and meshing processes on the structure of the railway station imported from Inventor CAD Autodesk software drawing. The CFD simulations are performed using Star-CCM+. The smokes flow around the building with buoyancy forces and extracted via exhaust fans. Through these simulations, we found that when a locomotive catches fire, the passengers could evacuate the building safely before the fire department machinery arrives. Furthermore, we notice that the ventilation fans activation based on detection of hazardous gases may not be efficient way to remove the latter. A schedule clean-up sync with train arrivals effectively removes toxic gas.
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Ielina, Tetiana, Liudmyla Halavska, Daiva Mikucioniene, Rimvydas Milasius, Svitlana Bobrova, and Oksana Dmytryk. "Development of 3D Models of Knits from Multi-Filament Ultra-Strong Yarns for Theoretical Modelling of Air Permeability." Materials 14, no. 13 (June 23, 2021): 3489. http://dx.doi.org/10.3390/ma14133489.

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The work is devoted to the study of the geometric parameters of a knitted loop. It has been found that the optimal model is a loop model detailed at the yarn level, which considers the change in the cross-sectional shape and sets the properties of the porous material in accordance with the internal porosity of the yarn. A mathematical description of the coordinates of the characteristic points of the loop and an algorithm for calculating the coordinates of the control vertices of the second order spline, which determine the configuration of the yarn axes in the loop, are presented in this work. To create 3D models, Autodesk AutoCAD software and Structura 3D software, developed in the AutoLisp programming language, were used. The simulation of the air flow process was carried out in the Autodesk CFD Simulation environment. For the experimental investigation, plane knits from 44 tex × 3 linear density ultra-high molecular weight polyethylene yarns were produced, and their air permeability was tested according to Standard DSTU ISO 9237:2003. The results obtained during the laboratory experiment and simulation differed by less than 5%.
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Kenickel Nunes, Beatriz, Silvia Regina Lucas de Souza, Arilson José de Oliveira Júnior, Enedy Allan Rodrigues Cordeiro, and Reginaldo Apolinário de Almeida. "A FLUIDODINÂMICA COMPUTACIONAL UTILIZADA PARA MAPEAR O CONFORTO TÉRMICO DE SUÍNOS NA FASE DE MATERNIDADE." ENERGIA NA AGRICULTURA 32, no. 1 (June 10, 2017): 32. http://dx.doi.org/10.17224/energagric.2017v32n1p32-39.

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As observações geradas em estudos sobre instalações de suínos têm demonstrado que o desempenho térmico das instalações comumente utilizadas pelos produtores vem apresentando um quadro de desconforto térmico na fase da maternidade, devido às adaptações construtivas feitas com a finalidade de atender tanto as necessidades da matriz quanto dos leitões. Sendo assim, o objetivo deste trabalho foi utilizar a ferramenta de fluidodinâmica computacional (CFD) para realizar o mapeamento do microambiente de duas instalações de suínos, visando o bem-estar dos animais. As simulações foram obtidas em uma maternidade da Fazenda Experimental Lageado, UNESP, Botucatu/SP e de uma granja comercial localizada em Santa Cruz do Rio Pardo/SP. Para as simulações utilizou-se o software Autodesk® CFD Simulation juntamente com o AutoCAD 3D, para desenho das instalações. As condições de conforto térmico foram analisadas por meio da aplicação do índice de voto médio estimado – PMV. Na instalação comercial simulada observou-se que as aberturas laterais não são suficientes para manter uma condição de conforto térmico, segundo o índice PMV. Com o uso da fluidodinâmica computacional foi possível modificar o ambiente mediante a elevação do seu fluxo de ar, o que demonstrou ser uma solução na diminuição da temperatura do ar e alcance de uma condição de conforto térmico.PALAVRAS-CHAVE: Conforto térmico, bem-estar de suínos, fluidodinâmica computacional, CFD, simuladores. FLUIDODYNAMICS COMPUTATIONAL USED FOR THE MAPPING OF THERMAL CONDITIONS IN INSTALLATION OF SWINE MATERNITIESABSTRACT: Studies have shown that the thermal performance of facilities commonly used by producers has presented an environmental discomfort picture in the maternity phase due to constructive adjustments made in order to meet needs of both piglets and sow. Therefore, this work aimed to use the computational fluid dynamic tool for mapping the microclimate of two facilities, which purpose of improving the animal welfare. The simulations were conducted at experimental farm “Lageado”, UNESP, Botucatu/SP and a commercial facility, located in Santa Cruz do Rio Pardo/SP. For simulations were used the Autodesk® CFD Simulation software along with AutoCAD 3D (facilities design). Thermal comfort conditions were analyzed by means of predicted mean vote – PMV. In simulated commercial facility was observed that side vents are not sufficient to establish a thermal comfort condition, according to PMV. With computational fluid dynamic was possible to change the environment through air flow increase, showing to be a solution in decrease of air temperature and reach of thermal comfort condition.KEYWORDS: Thermal comfort, swine welfare, computational fluid dynamic, CFD, simulators.
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Puzanov, A. V. "Transdisciplinary models of hydraulic drives of mobile machinery." «System analysis and applied information science», no. 4 (February 6, 2019): 51–55. http://dx.doi.org/10.21122/2309-4923-2018-4-51-55.

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Modern drive engineering requires a comprehensive analysis of all work processes in hydraulic drives, solving the problems of modeling the technological processes of their production using mathematical and software tools of various physicality.The article proposes an approach to the development of hydrodrives of mobile equipment based on transdisciplinary models of instruments and control systems. These models are designed to unite in a single information space a methodical and mathematical apparatus of various physicality: mechanics, kinematic, hydromechanics, heat engineering, and methods for their solution. These measures will increase their adequacy, reduce assumptions and reduce the safety factor as a measure of imperfection of the scientific and technical understanding of the facility.The article gives an example of the use of this approach in the development of volumetric hydraulic drives of mobile equipment a technique for calculating the indicator diagram of an axial-plunger hydraulic machine at a micro level using the Matlab / Simulink, Autodesk Simulation CFD and Autodesk Simulation Mechanical software complexes. The indicator diagram of the hydraulic machine is a clear characteristic of the dynamic qualities of the product. From the correctness of the calculation of this characteristic, the dynamic properties, reliability and resource of the drive as a whole depend.
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Labastid, Dayberto, Marco Bolobosky, Luis Mogollón, and Arthur James. "Implementación de un Intercambiador de Calor en Techos de Zinc." KnE Engineering 3, no. 1 (February 11, 2018): 747. http://dx.doi.org/10.18502/keg.v3i1.1478.

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The research aims to develop a compact prototype with low visual impact that is able to take advantage of solar energy to heat water collected from rain. The methodology used involves a study of the art of these systems, which was complemented by a research of related patents. The mathematical concepts governing heat transfer for these types of systems were analyzed and then simulated in Autodesk CFD. We also rely on the TRNSYS simulation software to estimate the temperature values that can reach Zinc roofs under tropical climatic conditions such as Panama. The system was built and tested, obtaining results such as reaching temperatures in the water very close to the surface temperatures of zinc. The decrease in the amount of heat entering the residence was also visualized.Keywords: heat exchanger, Solar Energy, Water Heater, Rainwater harvesting, Zinc Roof
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Dissertations / Theses on the topic "Autodesk Simulation CFD"

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Pálsson, Daði Snær. "Hybrid Ventilation : Simulation of Natural Airflow in a Hybrid Ventilation System." Thesis, KTH, Installations- och energisystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-146761.

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This thesis investigates the possibilities of using hybrid ventilation in an office building in Stockholm. The focus is on simulating the natural airflow to find out for which conditions it is sufficient. The thesis is done at White Arkitekter AB in cooperation and under the supervision of environmental specialists working there. A literature study is carried out to study what has been done before in Sweden as well as in other countries. Computer simulations are used to simulate the airflow to examine the conditions and architecture. A synthetic computer model representing a realistic office building is built up as a starting point. The ventilation method for the natural ventilation part is to take air in through the fa\c{c}ade and use the stack effects in an atrium for natural ventilation. By altering the architecture and the sizes of the openings according to the results from the simulations the building is dimensioned and formed to cope with the rules and requirements about the indoor air quality in workplaces. The simulations are done with a multi zone energy performance simulation tool that can simulate airflows and indoor air climate conditions in the zones as well as the energy consumption. Computational fluid dynamics calculations are then used to more closely simulate the conditions within the zones. The results from those simulations suggest that the natural ventilation as a part of a hybrid ventilation works for all the floors of the building for up to 10$\,^{\circ}\mathrm{C}$. The computational fluid dynamics simulations showed that the thermal comfort of all the occupants is fulfilled for these conditions but there is a risk of occupants experiencing draught because of to high velocities in the air especially for the colder outdoor temperatures. For the higher outdoor temperatures the airflow needs to be enforced to ensure sufficient conditions for the occupants and for the colder temperatures mechanical ventilation is needed to decrease heat losses and avoid the risk of draught.
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Book chapters on the topic "Autodesk Simulation CFD"

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Giełżecki, Jan, and Tomasz Jakubowski. "The Simulation of the Temperature Distribution in the Compost Using the Autodesk CFD Simulation Program." In Springer Proceedings in Energy, 715–25. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-13888-2_69.

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Giełżecki, Jan, and Tomasz Jakubowski. "The Simulation of Temperature Distribution in a Ground Heat Exchanger—GHE Using the Autodesk CFD Simulation Program." In Springer Proceedings in Energy, 333–43. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72371-6_32.

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Cruz, Christophe. "Use of Semantics to Manage 3D Scenes in Web Platforms." In Encyclopedia of Multimedia Technology and Networking, Second Edition, 1487–92. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch200.

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Computer graphics have widely spread out into various computer applications. After the early wire-frame computer generated images of the 1960s, spatial representation of objects improved in the 1970s with Boundary Representation (B-Rep) modeling, Constructive Solid Geometry (CSG) objects, and free-form surfaces. Realistic rendering in the 1990s, taking into account sophisticated dynamic interactions (between objects or between objects and human actors, physical interactions with light, and so on) now make 3Dscenes much better than simple 3D representations of the real world. Indeed, they are a way to conceive products (industrial products, art products, and so on) and to modify them over time, either interactively or by simulation of physical phenomena (Faux & Pratt, 1979; Foley, Van Dam, Feiner, & Hughes, 1990; Kim, Huang, & Kim, 2002). Large amounts of data can be generated from such variety of 3D-models. Because there is a wide range of models corresponding to various areas of applications (metallurgy, chemistry, seismology, architecture, arts and media, and so on) (DIS 3D Databases, 2004; Pittarello & De Faveri, 2006; SketchUp from Google, 2006), data representations vary greatly. Archiving these large amounts of information most often remains a simple storage of representations of 3D-scenes (3D images). To our knowledge, there is no efficient way to manipulate, or archive, extract, and modify scenes together with their components. These components may include geometric objects or primitives that compose scenes (3D-geometry and material aspects), geometrics transformations to compose primitives objects, or observation conditions (cameras, lights, and so on). Difficulties arise less in creating 3D-scenes, rather than in the interactive reuse of these scenes, particularly by database queries, such as via Internet. Managing 3Dscenes (e.g., querying a database of architectural scenes by the content, modifying given parameters on a large scale, or performing statistics) remains difficult. This implies that DBMS should use the data structures of the 3D-scene models. Unfortunately, such data structures are often of different or exclusive standards. Indeed, many “standards” exist in computer graphics. They are often denoted by extensions of data files. Let us mention, as examples, 3dmf (Apple’s Quickdraw 3D), 3ds (Autodesk’s 3DStudio), dxf (AutoDesk’s AutoCAD), flt (Multigen’s ModelGen), iv ( Silicon Graphics’ Inventor ), obj ( Wavefront/Alias ), and so on. Many standardization attempts strive to reduce this multiplicity of various formats. In particular, there is Standard for the Exchange of Product model data (STEP) (Fowler, 1995), an international standard for computer representation and exchange of products data. Its goal is to describe data bound to a product as long as it evolves, independently of any particular computer system. It allows file exchanges, but also provides a basis for implementing and sharing product databases. Merging 3D information and textual information allows the definition of the project’s mock-up. As a matter of fact, 3D information describes CAD objects of the project and textual added information gives semantic information on geometries. The main issues are the sharing and the exchange of the digital mock-up. The next section explains how we use a digital mock-up to create an information system with the help of the semantic included in geometric information. Information is exchanged and shared through a Web Platform.
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Conference papers on the topic "Autodesk Simulation CFD"

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Kudriavtsev, Vladimir, Brian Feeney, Max Buneta, Marek Krzeminski, Asier Ania, Michael Trauttmansdorff, Stana Todorcevic, Sudantha Balage, and Michael Viechweg. "CFD, Thermal and Stress Analysis for daVinci X-Prize Manned Space Mission: Computational Design Analysis - Part 1 (Keynote Lecture)." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-3113.

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In the present article we review engineering and research efforts conducted by a group of volunteers with the help of advanced engineering commercial software (CFD-ACE+, ANSYS, CFD-FASTRAN, Matlab/Simulink, Autodesk Inventor, Maple) in support of the da Vinci Project, the first Canadian competitor in the International X Prize Competition. The da Vinci Project has an objective of launching the first private sub-orbital manned space flight by the end of 2004. Under X Prize rules the vehicle must be reusable, built to hold 3 people and complete 2 flights within a 2 week period. The basic launch configuration is to lift the rocket using a reusable helium balloon to a launch altitude of 24,400 meters (80,000 feet). The paper describes in detail the various major subsystem components of the Rocket, Balloon Launch Platform, Ground Operations and Logistics and the multidisciplinary approach to arrive at a viable and safe design. A state of the art software and engineering data management methodology is described. All parameters that effect the design are ported through a data management software linking, CFD, FEA and Flight Simulation software’s directly to the primary CAD platform resulting in direct updates to the CAD model. This process allows an iterative design to develop rapidly, multiple configurations to be assessed and a final design output in the shortest overall timeframe. The data management software contains every parameter in the rockets design including all rocket engine performance criteria. Running a variation on the engine lsp (Specific Impulse) results in the CAD drawings updated with new tank sizes etc, yet still driven by constrictions such as maximum diameter of the vehicle. Lowering of the Isp in such case would result in the need for more fuel to reach the minimum assigned altitude of 115 Km. The rockets length would automatically be increased, given a diameter restriction. CG and CP values for instance are automatically recalculated for stability analysis.
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Balakin, Aleksey, Natal'ya Balakina, and M. Mezina. "USING MS EXCEL VARIABLES IN AUTODESK INVENTOR WHEN DESIGNING PRODUCTS OF VARYING COMPLEXITY." In CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2019. Bryansk State Technical University, 2019. http://dx.doi.org/10.30987/conferencearticle_5e02820f85f118.90343643.

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The possibilities of creating digital prototypes of products of varying complexity using Autodesk Inventor and MS Excel variables are considered. The procedure for creating solid models using Autodesk Inventor and their relationship with MS Excel variables is given using an example of a plunger-type part. The advantages of using this design method are given.
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Filipovich, Oleg, D. Koshevaya, N. Kadykov, V. Kamcev, and A. Gomonyuk. "THE USE OF CAD IN THE DESIGN OF THE RING BODY OF NEURO-HEADSET." In CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2019. Bryansk State Technical University, 2019. http://dx.doi.org/10.30987/conferencearticle_5e02821000ca08.48283804.

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Zhang, Ning, Pankaj R. Chandra, Ryan Robledo, and Sree Harsha Balijepalli. "Numerical and Experimental Investigation of Heat Transfer Enhancement Using Heat Pipes for Electronic Cooling." In ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fedsm2018-83149.

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Computers are crucial to nearly every endeavor in the modern world. Some computers, particularly those used in military applications, are required to endure extreme conditions with limited maintenance and few parts. Units such as these will hereafter be referred to as “rugged computers.” This series of experiments aims to produce improvements to rugged computers currently in service. Using heat pipes and finned heat sinks on an enclosed box, a computer’s Central Processing Unit (CPU) is able to reject heat without suffering contamination from unforgiving environments. A modular prototype was designed to allow for three distinct cases; a case with no heat pipes and fins, a cast with heat-pipes mounted internally with exterior fins and a case with heat-pipes extended externally with exterior fins. Each case was tested at three different heat loads, with a copper plate heated by a silicone heat strip simulating the heat load generated by a CPU. Each case/load combination was run many times to check for repeatability. The aim of this research is to discover the ideal case for maximum heat transfer from the CPU to the external environment. In addition to the experiments, numerical simulation of these modular prototypes with different designs of heat pipes were conducted in this research. Creating an accurate model for computer simulations will provide validation for the experiments and will prove useful in testing cases not represented by the modular prototype. The flow and heat transfer simulations were conducted using Autodesk CFD. The aim here is to create a model that accurately reflects the experimentally-verified results from the modular prototype’s cases and loads, thereby providing a base from whence further designs can branch off and be simulated with a fair degree of accuracy.
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Balakina, Natal'ya, Aleksey Balakin, M. Mezina, D. Bochko, and V. Cygankova. "USING CAD FOR STRESS ANALYSIS IN THE DESIGN OF KEYS FOR ORTHOPEDIC INSTRUMENTS." In CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2019. Bryansk State Technical University, 2019. http://dx.doi.org/10.30987/conferencearticle_5e02820f8eb634.36433163.

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The possibilities of using Autodesk Inventor for stress analysis in the design of keys for orthopedic instruments are considered. The stages of the simulation are shown. A stress analysis of one of the keys is performed, which previously confirmed the compliance of the developed design with the requirements for such products.
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Vlasenko, Dmitry, and Roland Kasper. "Integration Method of CAD Systems." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35065.

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This paper presents the modification of a non-iterative algorithm for the component-oriented simulation of the dynamics of multibodies. Now the method can be implemented for the component-oriented simulation of the dynamics of CAD systems with redundant constraints. Also the new version of the method is well-suitable for the implementation of sparse solvers. The algorithm was implemented in the Virtual System Designer (VSD) software, integrated with a CAD tool Autodesk Inventor. The simulation results of two CAD models: a car and a steam machine shows the method’s stability and accuracy.
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Roulo, David, Zachary Ptasienski, Brandon McCumber, and Subha Kumpaty. "NASCAR Truck Aerodynamic Analysis and Improvement." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70138.

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The NASCAR Truck Aerodynamic Improvement team is tasked with providing aerodynamic analysis and improvement to Ford Performance and their factory supported team Brad Keselowski Racing for their Ford F-150 race trucks. A Ford F-150 race truck is a “stock” truck that has some modifications for racing speed and safety. Ford Performance, reached out to an MSOE student and asked if a Senior Design team and project could be assembled to provide them with some aerodynamic analysis and improvements that would not require them to build and test using a trial-and-error type method resulting in expensive, and real, testing. The purpose of this project was to conduct a computational fluid dynamic analysis on the truck and make design changes to the truck that will provide more down force on the front two tires. The areas of the truck that were studied included the side panels, deck lid, rear quarter panels, and frontal geometry. There were also constraints put in place by the NASCAR rulebook on the vehicle specifications. These rules limit the design changes that were made to the truck. The model was originally sent as a laser scanned STL file. This file needed to be heavily edited in order to be imported into the CFD program. The programs used to edit this file include Geomagic, Autodesk Fusion 360, and SolidWorks. Through using these programs, the laser scan file was modified to a usable format. Upon conclusion of the CFD simulations using ANSYS Fluent, it was found that the truck with no geometry changes displayed a drag coefficient of 0.489 and a lift coefficient of −0.815. These results were found after 10,000 iterations of testing. The standard deviation in the drag and lift coefficients were 0.00743 and 0.01660 respectively. All statistical calculations along with the averaged solutions were calculated using the data after the 2,500th iteration. This is because the nature of the CFD solutions tend to fluctuate greatly at first and then slowly converge with more iterations. After the 2,500th iteration, a relatively steady state in the solutions is met where the residuals are converging to a single value or the fluctuation in the solutions is repetitive. The following design changes were made in attempt to increase the down force on the truck. A rib was added to the side panel in order to increase the downforce on the truck. The side panel was also modified with a cut. The contour on the rear deck lid was smoothed in order to decrease drag on the truck. Slots were cut out of the shell of the truck behind the rear wheels on both sides of the truck. These slots were angled in an attempt to create down force on the rear wheels. The front splitter was lowered closer to the ground in attempt to increase air velocity moving under the truck. This higher velocity air would create a lower pressure region under the car which would increase down force. All of these modifications were applied to the initial truck body and tested using the same setup as the baseline. The most successful design change was the rear deck lid modification which resulted in a drag coefficient of 0.472 and a lift coefficient of −0.816. This is a 3.48% decrease in the drag coefficient and a 0.12% decrease in the lift coefficient (or 0.12% increase in downforce). The results of this project were purely simulation based; any real modifications and field testing made will be performed by Brad Keselowski Racing and Ford Performance.
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