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首页> 外文会议>International Conference on Environmental Systems >CFD simulation on the airflow and CO{sub}2 transport in the U.S Lab: International Space Station Flight 5A configuration
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CFD simulation on the airflow and CO{sub}2 transport in the U.S Lab: International Space Station Flight 5A configuration

机译：CFD仿真在U.S实验室中的Airflow和Co {Sub} 2运输：国际空间站飞行5A配置

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摘要

The U. S. Laboratory (USL) module was added to the International Space Station (ISS) in Flight 5A, which would boost the Environmental Control & Life Support System (ECLSS) functional capabilities of the ISS. In the USL cabin aisle way, the air circulation is provided by a Temperature & Humidity Control (THC) system. To provide adequate ventilation under various open/close combinations of the rack panels, it would be very challenging by conducting many tests prior to the launch of Flight 5A. Computational fluid dynamics (CFD) simulation technology is utilized to investigate the airflow in the U.S. Lab for various operating scenarios. A CFD model, which includes the supply diffusers, the return registers, the ventilation of the temporary crew quarter, the gap between the outer pressure shell and all the racks, is modeled. The ventilation performance for the cabin aisle way and air behind panels is addressed. The concern over the potential accumulation of CO{sub}2 in certain regions, where the airflow becomes stagnant, is also addressed by simulating the transient transport of CO{sub}2 in this study.
机译：将U.S.实验室（USL）模块添加到国际空间站（ISS）中的飞行5A中，这将提高ISS的环境控制和生命支持系统（ECLS）功能能力。在USL机舱过道方式中，空气循环由温度和湿度控制（THC）系统提供。为了在机架面板的各种开放式/关闭组合下提供足够的通风，通过在飞行5A飞行前进行许多测试将是非常具有挑战性的。计算流体动力学（CFD）仿真技术用于研究美国实验室的气流进行各种操作场景。一种CFD模型，包括供应扩散器，返回寄存器，临时船员的通风，外压壳与所有机架之间的间隙进行了建模。解决了机舱过道方式的通风性能和面板后面的空气。通过模拟本研究中的CO {SUB} 2的瞬态传输，还解决了在某些区域中对某些区域中的CO {SUB} 2的潜在积累。

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