Modelling of Flow Parameters through Subsurface Drainage Modules for Application in BIOECODS

Abdurrasheed, Abdurrasheed Said; Yusof, Khamaruzaman Wan; Al‐Qadami, Ebrahim Hamid Hussein; Takaijudin, Husna; Ghani, Aminuddin Ab.; Muhammad, Muhammad Mujahid; Sholagberu, Abdulkadir Taofeeq; Zainalfikry, Muhammad Kashfy; Osman, Manal; Patel, M. S.

doi:10.3390/w11091823

Cited by 11 publications

(14 citation statements)

References 19 publications

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“…4 the car model dragged from its original location and sliding failure mode was noticed. The numerical results were compared with Australiana rainfall and runoff guidelines (2011) [32] and good agreement was noticed as shown in Figure 18. From the results it can be concluded that, numerical simulation using FLOW-3D can give good predictions and results related to vehicle instability limits.…”

Section: Resultsmentioning

confidence: 73%

See 1 more Smart Citation

Impact and Mitigation Strategies for Flash Floods Occurrence towards Vehicle Instabilities

Mustaffa¹,

Al‐Qadami²,

Shah³

et al. 2020

Flood Impact Mitigation and Resilience Enhancement

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This chapter presents a flood risk management system for vehicles at roadways, developed from extensive experimental and numerical studies on the impact of flash floods towards vehicle instabilities. The system, easily addressed as FLO-LOW, developed to contradict the assumptions that a vehicle would be able to protect the passengers from the flood impact. Herein the hydrodynamics of flows moving across these roads coupled with the conditions of a static car that would result in vehicle instabilities has been studied. In an attempt to prevent fatalities in commonly flooded areas, permanent structures are installed to warn users regarding water depth at the flooded areas. The existing flood monitoring system only focuses on water conditions in rivers or lake in order to determine risks associated with floods. Thus, there is a need for a better system to understand and quantify a mechanism to determine hydrodynamics instability of a vehicle in floodwaters. FLO-LOW enables the road users to input their vehicle information for a proper estimation of safety limits upon crossing the flood prone area. Preferably, the system enables road users to describe and quantify parameters that might cause their vehicles to become vulnerable to being washed away as they enter the flooded area.

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Section: Resultsmentioning

confidence: 73%

“…FLOW-3D is a commercial code which uses finite volume method (FVM) and turbulence models to solve continuity and Navier stokes equations [31,32]. The FLOW-3D software also allow the numerical simulation under six degree of freedom which can represent the real experiment condition [28].…”

Section: Methodsmentioning

confidence: 99%

Impact and Mitigation Strategies for Flash Floods Occurrence towards Vehicle Instabilities

Mustaffa¹,

Al‐Qadami²,

Shah³

et al. 2020

Flood Impact Mitigation and Resilience Enhancement

Self Cite

View full text Add to dashboard Cite

show abstract

“…Before conducting the numerical simulation, mesh quality was checked using Fractional Area/Volume Obstacle Representation (FAVOR) solver. The FAVOR solver is a unique tool which can be used to check the mesh quality and confirm whether the geometry was accurately captured [26]. Based on the FAVOR solver outcomes, it was found out that the selected cell sizes can capture all model geometries perfectly.…”

Section: Materials Characteristics and Specificationsmentioning

confidence: 99%

3-Dimensional Numerical Modelling to Assess Geothermal Piles Efficiency in Tropical Countries

Mustaffa

Kamarozaman

Al‐Qadami

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Nowadays, climate changes caused by intense and continuous greenhouse gases emission is one of the most curtail issues that facing the human beings. Throughout the years, researchers have tried to find other reliable sources available to control the exhaustion of coal, gases, and oil. Geothermal energy is one of these alternatives that have been investigated and considered as one of the most promising renewable and clean energy sources. Tropical climate countries such as Malaysia could benefit from this technology due to its high cooling demand throughout the year. Geothermal piles for instance, are one of the methods that can be used to extract geothermal energy by employing the piles as a heat transfer bodes. Therefore, this paper presents numerical simulations as an early attempt to realise the potential of adopting geothermal piles catered to Malaysia’s soil condition and pile standards for low-rise construction. A pipe with a U-tube shape wase simulated at three different inner diameters (14, 19, and 26) under two inlet dischargers (0.009 m3/s 0.050 m3/s). The U-tube was placed inside concrete square pile with dimensions of 1.5 m width, 1.5 m length and 10 m hight. The simulation was conducted under two soil conditions namely, (i) dry soil, and (ii) soil effected by groundwater. The performance of the geothermal pile was measured by the amount of temperature reduction in the pipe outlet after heat exchange has been done. The results obtained showed that geothermal piles with lower flow discharge (0.009 m3/s) operation produced more temperature reduction in the pipe outlet. Without the presence of groundwater, the 26 cm diameter recorded the highest temperature reduction, with pipe outlet temperature of 29.89 °C equivalent to a 1.0 % reduction. Similarly, with the groundwater effect, the same pipe diameter recorded the highest temperature reduction, with pipe outlet temperature of 28.43 °C equivalent to a 1.57 % reduction. Based on the numerical modelling results it can be said that combination of 26 cm pipe diameter, at 0.009 m3/s flow rate, and the advection effect of groundwater temperature has produced an optimum condition for the geothermal piles in cooling system.

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“…SDM is a water infiltration storage tank for stormwater control and management, and it is also known as the Modular Rainwater. The main purpose of the modular tank is to allow natural water infiltration on-site, which reduces surface runoff [32]. However, in this study, the SDM was used as an additional layer of the saturated zone creating an anaerobic condition to enhance nutrient removal by increasing retention time and promoting more biological removal processes.…”

Section: Cascaded Bioretention Setupmentioning

confidence: 99%

Effects of Vegetation and Saturated Zone in Cascaded Bioretention on Enhancing Nutrient Removal

Osman

Takaijudin

Massoudieh

et al. 2022

Environmental Engineering Research

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Bioretention is a water management practice that is increasingly being applied for runoff quality control. Although previous Bioretention studies have used some techniques to improve nutrient removal, some nutrients still leach out. Therefore, this study used Cascaded Bioretention (CB) by connecting three Bioretention columns in series. The planted Bioretention Column was retrofitted by adding a subsurface drainage module (SDM) below the gravel layer to create a dual saturated zone. This study aimed to investigate the effect of the number of treatments, vegetation, and modified saturated zone on enhancing nutrient removal from agricultural runoff and to understand nutrient removal mechanisms. The removal efficiencies of NH3-N, NO3-N, NO2-N, and TN improved to 89.8%, 49.7%, 49.2%, and 53.4%, respectively. The only negative removal was ON, which significantly decreased by incorporating vegetation and a modified saturated zone. Increasing the number of treatments significantly enhanced TN and ON while maintaining stable removal for other nitrogen compounds. However, phosphorus was less sensitive to increasing the number of treatments. Nitrogen removal could be enhanced by different removal processes such as nitrification, denitrification, mineralization, assimilation by plant uptake, and Anammox. However, phosphorus removal was less complicated, as adsorption and infiltration are likely to be the main removal mechanisms.

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Modelling of Flow Parameters through Subsurface Drainage Modules for Application in BIOECODS

Cited by 11 publications

References 19 publications

Impact and Mitigation Strategies for Flash Floods Occurrence towards Vehicle Instabilities

Impact and Mitigation Strategies for Flash Floods Occurrence towards Vehicle Instabilities

3-Dimensional Numerical Modelling to Assess Geothermal Piles Efficiency in Tropical Countries

Effects of Vegetation and Saturated Zone in Cascaded Bioretention on Enhancing Nutrient Removal

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