共查询到20条相似文献,搜索用时 93 毫秒
1.
针对天津航母园区4D动感影院放映厅空间高大、室内热环境复杂的情况,利用CFD软件AIRPAK对该放映厅内的气流组织进行了模拟,从而给出了室内温度分布和气流组织分布情况,为放映厅设计提供一定的理论依据。 相似文献
2.
高大空间分层空调室内气流的数值模拟 总被引:4,自引:0,他引:4
分层空调是高大空间建筑典型的气流组织方式.本文利用计算流体力学(即CFD)方法对一个典型装有分层空调的高大厂房房间内的三维气流进行了数值模拟.其中,使用标准模型,运用SIMPLE算法进行离散.预测了房间内的速度场、温度场,表明CFD模拟可以为分层空调系统的节能和设计提供依据. 相似文献
3.
应用计算流体力学CFD技术对某商场中庭空调的气流组织形式进行了数值模拟计算,并根据模拟结果,确定了气流组织的最优方案。此研究也说明了在类似的大空间气流组织设计中,CFD技术具有巨大的优势。 相似文献
4.
针对西安工程大学临潼校区大学生活动中心综艺大厅(高大空间)夏季供冷人员活动区域温度较高现象,利用CFD模拟软件对综艺大厅空调气流组织及热舒适性进行仿真,对现有送风形式提出优化方案,优化后的气流组织极大改善了综艺大厅人员活动区的热环境. 相似文献
5.
本文通过对常用的体育馆空调系统气流组织形式进行了探讨,认为体育馆气流组织形式的选择对空调系统的能耗有较大的影响,从而影响了体育馆的经济效益,并结合工程实例,提出了一种认为比较适合于中小型体育馆空调系统的气流组织形式。 相似文献
6.
7.
8.
王顺林 《制冷空调与电力机械》2009,30(3):47-49
利用PHOENICS软件对广州某体育馆气流组织进行了CFD模拟,结果显示:在仅开启座椅喷口送风的空调条件下,该馆能满足小球比赛要求,但设于场馆区底角的回风口稍不利于节能和形成良好的气流组织分布。 相似文献
9.
10.
针对深圳国际会展中心超大展厅的空间尺度和球型喷口射流特点,结合建筑内部空间特点,研究了超大空间侧送风的气流组织的可行性.并通过气流组织经典计算方法初步确定送风口送风量及安装高度,最后通过CFD模拟计算软件进行气流组织模拟并优化风口布置. 相似文献
11.
12.
局部集中送风洁净手术室空气分布的数值模拟 总被引:3,自引:0,他引:3
文中首先建立了数值模拟局部集中送风洁净手术室空气分布的数学模型,然后对某大型手术室局部百级工况下,模拟人员产尘的实际情况进行了数值模拟,对室内的速度分布和污染浓度分布进行分析,从而指出考虑了人员产尘的洁净室空气分布预测结果比传统的空态研究结果更接近实际,对同类气流组织设计更具有指导意义。 相似文献
13.
The main objective of this study is to demonstrate the applicability of similitude theory in designing scaled down models to predict the flutter pressure of delaminated composite beam-plate subjected to supersonic airflow. The linear plate theory is used for structural modeling, and linear piston theory is used for aerodynamic modeling. In this study, we consider only the procedure that is based on the direct use of the governing equations. Distorted models with different fiber orientation, delamination size, and axial position than those of prototype are studied. Results show that a set of scaling models can be found which can predict the flutter pressure of delaminated beam-plate accurately. 相似文献
14.
陈永良 《中国计量学院学报》2000,11(1):77-80
设计介绍一种用于扩展通用示波器功能的接口卡 .结果表明 :该卡不仅使通用示波器具备存储示波器的部分功能 ,能显示和观察某些用通用示波器无法实现的特殊波形 ,而且具有函数信号发生器的基本功能 ,实现函数信号波形的输出 相似文献
15.
Haomin Wang Shuo Li Yiliang Wang Huimin Wang Xinyi Shen Mingchao Zhang Haojie Lu Maoshuai He Yingying Zhang 《Advanced materials (Deerfield Beach, Fla.)》2020,32(11):1908214
Recently, electronic skin and smart textiles have attracted considerable attention. Flexible sensors, as a kind of indispensable components of flexible electronics, have been extensively studied. However, wearable airflow sensors capable of monitoring the environment airflow in real time are rarely reported. Herein, by mimicking the spider's fluff, an ultrasensitive and flexible all-textile airflow sensor based on fabric with in situ grown carbon nanotubes (CNTs) is developed. The fabric decorated with fluffy-like CNTs possesses exceptionally large contact area, endowing the airflow sensor with superior properties including ultralow detection limit (≈0.05 m s−1), multiangle airflow differential response (0°–90°), and fast response time (≈1.3 s). Besides, the fluffy fabric airflow sensor can be combined with a pristine fabric airflow sensor to realize highly sensitive detection in a wide airflow range (0.05–7.0 m s−1). Its potential applications including transmitting information according to Morse code by blowing the sensors, monitoring increasing and decreasing airflow velocity, and alerting blind people walking outside about potential hazard induced by nearby fast-moving objects are demonstrated. Furthermore, the airflow sensor can be directly integrated into clothing as stylish designs without sacrificing comfortness. It is believed that the ultrasensitive all-textile airflow sensor holds great promise for applications in smart textiles and wearable electronics. 相似文献
16.
基于神经网络模型的舰面流场仿真算法 总被引:2,自引:0,他引:2
飞行甲板表面流场是影响直升机飞行安全的重要因素,在直升机实时飞行仿真中,流场速度分布特性直接影响直升机飞行动力学仿真的精确度。文章以纳维-斯托克斯方程为基础,利用BP神经网络算法,研究了实时确定流场速度分布的方法,该方法可用于甲板流场实时仿真,提高直升机飞行仿真的精度。 相似文献
17.
18.
19.
20.
The design of a drying or cooling store aims to provide an even airflow distribution, when aerated, for preservation purposes. The airflow in some curved bottom bins are studied in this paper. The flow is modelled, using Darcy's law. A generalized Schwarz-Christoffel transformation is employed to reduce the problem of computing streamlines and isobars of airflow to solving a single nonlinear equation for the flow angle along the wall. Corresponding to different bin shapes, a few computed streamlines and isobars of airflow are presented, showing the effect of changing bottom geometries on the air flow. Heat transfer in such bins is also investigated. Based on an analysis of the far field of airflow, finite-height bins are considered. Analytical solutions of the heat conduction equation in terms of streamlines and isobars are obtained. 相似文献