IndiaNumerical simulation of air flow behavior and nozzleSolutions

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

    2021-1-6 · The directions of the air flow in the nasal cavity and two-dimensional contours in sections 1–3 are shown in Figs. 5a, b and c. As expected, in the narrow channels of the nasal cavity the air flow accelerated and reached a maximum value of 3.33 m/s (Fig. 5a, b). It can be also noticed that due to the deep shells of the nasal cavity, vortices ...

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  • Numerical Simulation and Experimental Study of 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 ...

    2021-1-6 · A numerical simulation of air flow in the human respiratory system for various environmental conditions Alibek Issakhov1,2*, Yeldos Zhandaulet1,2, Aizhan Abylkassymova1,2 and Assylbek Issakhov1,2 Abstract The functions of the nasal cavity are very important for maintaining the internal environment of the lungs since the

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  • Simulation of Air Flow Through a Test Chamber - DTIC

    2011-5-14 · Our simulation of air flow through the thermo-anemometer chamber began by defining a constant flow of air at 5.1 m/s into the 3-inch diameter inlet port. This simulates the blower attached to the test chamber inlet. The chamber model was meshed in Cosmos FloWorks with 48,000 cells.

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  • The measurement and simulation of indoor air flow

    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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  • CFD simulation of air flow after sneezing | Mechead.com

    2021-7-5 · By the beginning of April 2021, the number of people infected during the COVID-19 pandemic had risen to more than 130 million people of whom more than 2.8 million died. The SARS-CoV-2 virus responsible for COVID-19 is transmitted particularly by droplets or aerosols emitted when an infected person speaks, sneezes or coughs. This is how the viruses and other pathogens spread through the ...

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  • (PDF) Simulation and Visualization of Air Flow Around Bat ...

    Simulation and Visualization of Air Flow Around Bat Wings During Flight I.V. Pivkin1, E. Hueso2, R. Weinstein2, D.H. Laidlaw2, S. Swartz3, and G.E. Karniadakis1 1 Division of Applied Mathematics 2 Department of Computer Science 3 Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA Abstract.

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  • A Multi-Agent Simulation of Collaborative Air Traffic

    2009-1-7 · Keywords: agent-based modeling and simulation, air traffic flow management, collaboration, competition Introduction Air traffic in the United States of America (U.S.A.) is forecasted to double or triple by the year 2025 (Pearce, 2006). Recent simulations (Mukherjee, Grabbe, & Sridhar, 2008) of this

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  • Porosity model and air leakage flow field simulation of ...

    2018-4-2 · The air leakage in goaf can easily lead to disasters such as spontaneous combustion process of residual coal and gas accumulation, threatening production safety in underground coal mines. In order to study and master air leakage flow field distribution in goaf, the particle flow numerical simulation software PFC3D is used for the simulation of the collapse of overlying rock strata with the ...

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  • Simulation of Sand Filling Process and Analysis of Flow ...

    2019-1-4 · Core shooting process has a great influence on the quality of sand cores. At present, there are two computational fluid dynamic models applied to simulate the hydrodynamics of core shooting process. In this paper, a two-fluid model (TFM) simulation is made on fluid dynamic analysis. With validation of experimental results and discrete particle model (DPM) simulations, the TFM is able to ...

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  • Numerical simulation of intranasal air flow and ...

    A numerical simulation applying the computational fluid dynamics (CFD) solver Fluent 6.1.22 was performed displaying inspiratory intranasal air temperature and airflow patterns. Results: Due to resection of the turbinates the airflow pattern is disturbed resulting in a …

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  • Simulation and Visualization of Air Flow Around Bat

    2005-6-27 · Simulation and Visualization of Air Flow Around Bat Wings During Flight I.V. Pivkin1, E. Hueso2, R. Weinstein2, D.H. Laidlaw2, S. Swartz3, and G.E. Karniadakis1 1 Division of Applied Mathematics 2 Department of Computer Science 3 Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA Abstract.

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  • Scientists Create Detailed Simulation of Air Flow After ...

    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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  • Simulation Analysis of Air Flow and Turbulence Statistics ...

    2014-6-25 · The implementation of variable artificial roughness patterns on a surface is an effective technique to enhance the rate of heat transfer to fluid flow in the ducts of solar air heaters. Different geometries of roughness elements investigated have demonstrated the pivotal role that vortices and associated turbulence have on the heat transfer characteristics of solar air heater ducts by ...

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  • SIMULATION OF TEMPERATURE AND AIR FLOW IN A

    2015-6-24 · Air Distribution in Rooms, (ROOMVENT 2000) Editor: H.B. Awbi SIMULATION OF TEMPERATURE AND AIR FLOW IN A SECOND SKIN FA<;ADE F. Di Maio and A.H.C. van Paassen Laboratory for Refrigeration Engineering and Indoor Climate Technology, Delft University of Technology, Mekelweg 2, 2628 CD Delft. The Netherlands. ABSTRACT 943

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  • CFD Simulation of the Increase of the Roof Ventilation ...

    2019-9-28 · For scenario S8 it is observed that the flow patterns present a displacement behavior that enters CTG through the windward side ventilation and a small flow through the fixed roof ventilation of the second span in contact with the air flow, the mean velocities obtained were 0.14, 0.61 and 2.29 ms-1 being 7.6, 8.9 and 6.0 % with respect to S1 ...

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  • CFD Modeling and Validation of Temperature and Flow ...

    2020-10-13 · CFD programs with multi-zone air flow models and/or building energy simulation models, and it was determined that Large eddy simulation has unique capabilities compared to other CFD model. Emmerich and McGrattan (1998) described a three-dimensional, large eddy simulation (LES) model developed for studying the transport of smoke

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  • A detailed simulation of air flow after sneezing

    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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  • A Computational Fluid Dynamics Simulation of Oil–Air

    2016-9-8 · A volume of fluid (VOF) computational fluid dynamics (CFD) approach is applied. A sector of a ball bearing is modeled with a fine mesh, and the detailed simulations show the flow behavior for different oil splits to the three feed locations of the bearing, thus providing information useful to understanding oil shedding into the bearing chambers.

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  • Simulation Study of Cryogenic Air Separation Unit Using ...

    A numerical simulation has been performed to clarify the effects of turbulence in a liquid on the deformation of the liquid jet surface into an air flow. The turbulences in the liquid jet were simulated by the Rankin vortices, and the liquid jet surface was tracked numerically by the volume of fluid method.

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

    Numerical Simulation and Experimental Verification of Air Flow through a Heated Pipe. Download. Related Papers. Heat transfer augmentation in solar air heater using delta-shaped obstacles mounted on the absorber plate. By Manish Mishra. F01033035. By IOSR Journals.

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  • EFFECTS OF ASYMMETRIC INTAKE VALVE LIFT

    2014-8-22 · National Institute of Technology Rourkela Certificate This is to certify that the project entitled “Simulation Study of Cryogenic Air Separation Unit Using Aspen Hysys At Rourkela Steel Plant”, being submitted by Mr. Deepak Kumar Bhunya, Roll No. 212ME5404 in the partial fulfillment of the requirements for the award of the Degree of Master of Technology in Mechanical Engineering, is a …

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