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  • Air Flow Simulation - hwd3d.com

    The basic logic of the simulation model for handling air and diesel movements and the means for modeling air splits and junctions are discussed. The model application to a three-entry coal mine ...

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  • Simulation and Visualization of Air Flow Around Bat

    The performance simulation of surface air ... [Show full abstract] cooler is hereby carried out under the conditions of variable status of air and water flow rate on the basis of unstable state ...

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  • Air Flow Simulation - hwd3d.com

    2021-1-6 · In the paper , data from the measurements were made of the air flow in a nose prototype using a hot wire anemometer in a large-scale physical model of the nasal cavity, based on computed tomography of the right nasal cavity of a healthy man. In the measurements, various respiration rates were used, equivalent to 180 ml/s, 560 ml/s and 1100 ml/s ...

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  • The measurement and simulation of indoor air flow

    This paper ,through experimental tests and CFD simulation, studies the air flow characteristics and further more deduces the calculation formula of the coefficient ξ with one beam upright the airflow direction in the architecture interlayer. The results show that when 0. 3≤ m ≤0.7, 0. 2≤ v ≤1.0m/s, 34 4 .08× 10≤Re≤2.04×10, the ...

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  • A numerical simulation of air flow in the human ...

    2020-12-15 · Air Flow Simulation 28 th Ju ly 2020 (updates in orange 8th August 2020) 1. OVERVIEW An interactive simulation of the air flow through a locomotive and rail car air system from engine start to engine shutdown. This is a tool that will allow users to mani pulate objects related to the

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  • Simulation of Air Flow Through a Test Chamber - DTIC

    3.2 Air flow parameters 30 3.3 Turbulence and statistics 32 3.4 Indoor air flow measurements 34 3.5 Principles of velocimetry 36 3.6 Hot sphere anemometer 39 3.7 Particle Tracking Velocimetry (PTV) 51 3.8 Summary 58 Chapter 4 - The simulation of indoor air flow..... 61 4.1 Introduction 61

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  • IOP Conference Series: Earth and Environmental Science ...

    2021-1-6 · simulation using computational fluid dynamics (CFD) as an alternative approach to studying airflow in human re-spiratory systems. Compared to natural measurements, CFD modeling is advantageous for a detailed study of air flow in the nasal cavity model. However, an accurate air-flow forecast requires careful selection of CFD models and rigorous ...

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  • A numerical simulation of air flow in the human ...

    This paper ,through experimental tests and CFD simulation, studies the air flow characteristics and further more deduces the calculation formula of the coefficient ξ with one beam upright the airflow direction in the architecture interlayer. The results show that when 0. 3≤ m ≤0.7, 0. 2≤ v ≤1.0m/s, 34 4 .08× 10≤Re≤2.04×10, the ...

    Get Price
  • IOP Conference Series: Earth and Environmental Science ...

    2021-1-6 · simulation using computational fluid dynamics (CFD) as an alternative approach to studying airflow in human re-spiratory systems. Compared to natural measurements, CFD modeling is advantageous for a detailed study of air flow in the nasal cavity model. However, an accurate air-flow forecast requires careful selection of CFD models and rigorous ...

    Get Price
  • Research Article Macroscopic Model and Simulation

    The nasal airway is an extremely complex structure, therefore grid generation for numerical prediction of airflow in the nasal cavity is time-consuming. This paper describes the development of a voxel-based model with a Cartesian structured grid, which is characterized by robust and automatic grid g …

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  • Implementation and evaluation of air flow and heat ...

    The type of atomize-cool and air-cool are widely used in the world now. Air-jet is a very vital instrument in quenching by air-cooling. t is necessary to simulate the inner and outer flow-field of air-jet. By means of computational fluid dynamics soft system Fluent, numerical simulation of quenching air cooling process of air-jet was carried out.

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  • Simulation and Visualization of Air Flow Around Bat

    2019-12-12 · Simulation results also indicate that an OFA nozzle angle set below 30° moves the mixing point of the OFA flow and the up-flowing gas downward, further aiding combustion in the upper furnace. However, when the angle increases above 30°, OFA is unable to reach the furnace center, weakening combustion in the furnace, because no reaction with ...

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  • J5.1 VALIDATION OF CFD SIMULATION OF TURBULENT

    2021-6-30 · In a coughing event that lasts for 0.4 seconds and has a maximum exhaled air speed of 4.8 m/s, the flow first generates a turbulent stream of air that is hotter and more humid than that of the environment. Once the expiration is over, the stream turns into a puff of air that rises because of flotation and its lack of weight while it dissipates.

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  • Research Article Macroscopic Model and Simulation

    2005-6-27 · Simulation and Visualization of Air Flow Around Bat Wings During Flight 691 where = ∑P= φ 0 t 1 u t( ) is a mean (time-averaged) position of the markers and φk are the orthonormal spatial modes. The unknown functions

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  • Simulation and Experimental Analysis of Surface

    2021-3-16 · The objection of this study is to perform port flow analysis on ICE to determine flow rate and swirl at different valve lift under stationary engine parts.Methodology employed to analyze and solve the ICE port flow simulation is the use of CFD software that uses the finite volume method of numerical analysis to solve the continuity, Navier ...

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  • Analysis of Air Flow Distribution and Thermal Comfort in ...

    2013-7-9 · Coupled Simulation of the Secondary Air Flow, Heat Transfer, and Structural Deflection of a Gas Turbine Engine Guilherme Tondello, ... codes for secondary air flow and structural simulation for better evaluating temperature profiles and labyrinth seal behavior during operation.

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  • Implementation and evaluation of air flow and heat ...

    2020-3-12 · Air flow distribution and thermal comfort in an HEV is studied and simulations are performed to investigate the optimum air distribution pattern for providing thermal comfort while maintaining energy efficiency. To acquire a preliminary understanding of the problem, an analytical model is developed for air flow …

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  • A detailed simulation of air flow after sneezing

    2004-5-6 · Tuomaala, Pekka. Implementation and evaluation of air flow and heat transfer routines for building simulation tools. Espoo 2002. VTT Publications 471. 45 p. + app. 52 p. Keywords air conditioning, HVAC systems, heat transfer, air flow, air quality, buildings, simulation, BUS++, networks, data processing Abstract

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  • Vrije Universiteit Brussel Energy modeling and air flow ...

    2021-7-31 · A detailed simulation of air flow after sneezing 30 June 2021 From left to right and from top to bottom, the panels show the magnitude field for the velocity of the air

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  • Advances in Mechanical Engineering 2016, Vol. 8(7) 1–8 ...

    Energy modeling and air flow simulation of an ancient wind catcher in Yazd CONFERENCE PAPER · DECEMBER 2015 READS 32 7 AUTHORS, INCLUDING: Zhaleh Hedayat Vrije Universiteit Brussel 2 PUBLICATIONS 0 CITATIONS SEE PROFILE Nima Samkhaniani Tarbiat Modares University 15 PUBLICATIONS 6 CITATIONS SEE PROFILE Bert Belmans Vrije Universiteit Brussel

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  • EFFECTS OF ASYMMETRIC INTAKE VALVE LIFT

    2015-7-15 · Simulation of cooling system using internal air flow with bending flow passages Chongho Youn1, Tomohiro Takahashi2 and Toshiharu Kagawa3 Abstract Cooling after the implementation of a high-density integrated circuit manufacturing process using internal air flow within the object to be cooled is often performed in the industry.

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