Understanding the Stability of Passenger Vehicles Exposed to Water Flows through 3D CFD Modelling

弗劳德数 浮力 机械 阻力 不稳定性 计算流体力学 超临界流 流量(数学) 环境科学 阻力系数 超临界流体 计算机模拟 海洋工程 岩土工程 地质学 工程类 物理 热力学
作者
Ebrahim Hamid Hussein Al‐Qadami,Mohd Adib Mohammad Razi,Wawan Septiawan Damanik,Zahiraniza Mustaffa,Eduardo Martínez‐Gomariz
出处
期刊:Sustainability [MDPI AG]
卷期号:15 (17): 13262-13262
标识
DOI:10.3390/su151713262
摘要

A vehicle exposed to flooding may lose its stability and wash away resulting in potential injuries and fatalities. Traffic disruption, infrastructure damage, and economic losses are also additional effects of the washed vehicles. Therefore, understanding the responses of passenger vehicles during flood events is of the utmost importance to reduce flood risks and develop accurate safety guidelines. Previously, flooded vehicle stability was investigated experimentally, theoretically, and numerically. However, numerical investigations are insufficient, of which only a few studies have been published since 1967. Furthermore, coupled motion simulations have not been employed to investigate the hydrodynamic forces on flooded vehicles. In this paper, a numerical framework was proposed to assess the response of a full-scale medium-size passenger vehicle exposed to floodwaters through three-dimensional computational fluid dynamic modelling. The vehicle was simulated under subcritical and supercritical flows with the Froude number ranging between 0.09 and 2.46. The results showed that the vehicle experienced the floating instability mode once the flow depth reached 0.38 m, while the sliding instability mode was observed once the depth×velocity threshold function exceeded 0.36 m2/s. In terms of hydrodynamic forces, it was noticed that the drag force decreased with the increment of the Froude number and flow velocity. On the other hand, the fraction and buoyancy forces are mainly governed by the flow depth at the vehicle vicinity. The drag coefficient was noticed to be less than 1 for supercritical flows and more than 1 for subcritical flows. The numerical results obtained through the framework introduced in this study demonstrate favorable agreement with three different previously published experimental outcomes.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
NZH关闭了NZH文献求助
刚刚
刚刚
1秒前
李健的小迷弟应助溯溯采纳,获得10
1秒前
hrs完成签到,获得积分10
1秒前
1秒前
1秒前
1秒前
1秒前
2秒前
Damon发布了新的文献求助10
2秒前
star发布了新的文献求助10
3秒前
一一应助AlexLam采纳,获得10
3秒前
Lucas应助johnny采纳,获得10
3秒前
传奇3应助xxx77采纳,获得10
3秒前
尊敬惜雪完成签到,获得积分10
3秒前
3秒前
打打应助秋暝寒衣采纳,获得10
4秒前
苏梓卿完成签到,获得积分10
4秒前
Jonas完成签到,获得积分10
4秒前
傲娇颖发布了新的文献求助10
5秒前
英俊宣宣完成签到 ,获得积分10
5秒前
幽默的龙猫完成签到 ,获得积分10
5秒前
5秒前
muyingleng发布了新的文献求助10
7秒前
老肥完成签到,获得积分20
7秒前
烂漫剑发布了新的文献求助10
7秒前
安静凡旋发布了新的文献求助10
7秒前
jiuxun发布了新的文献求助10
7秒前
7秒前
萧萧发布了新的文献求助10
7秒前
8秒前
8秒前
9秒前
Zhang完成签到,获得积分10
9秒前
钻石发布了新的文献求助10
9秒前
hiter发布了新的文献求助30
9秒前
petrichor应助半富半莲采纳,获得10
9秒前
10秒前
高分求助中
Continuum Thermodynamics and Material Modelling 3000
Production Logging: Theoretical and Interpretive Elements 2700
Mechanistic Modeling of Gas-Liquid Two-Phase Flow in Pipes 2500
Structural Load Modelling and Combination for Performance and Safety Evaluation 1000
Conference Record, IAS Annual Meeting 1977 710
電気学会論文誌D(産業応用部門誌), 141 巻, 11 号 510
Virulence Mechanisms of Plant-Pathogenic Bacteria 500
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3564116
求助须知:如何正确求助?哪些是违规求助? 3137325
关于积分的说明 9421827
捐赠科研通 2837701
什么是DOI,文献DOI怎么找? 1559976
邀请新用户注册赠送积分活动 729224
科研通“疑难数据库(出版商)”最低求助积分说明 717246