Martin Francis Lambert

Martin Francis Lambert
University of Adelaide · School of Civil, Environmental & Mining Engineering

41.19
 · 
B.E. (Hon 1), Ph.D
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Research items (370)
Article
Full-text available
A harvested stormwater and managed aquifer recharge system has been analyzed through both simulation sensitivity analysis and optimization to reduce operational pumping costs and increase the volume of water harvested. The simulation sensitivity analysis explored increasing the size of a storage tank, replacing the three harvesting pumps, and using...
Article
Full-text available
Plastic pipes [e.g., polyvinyl chloride (PVC) or high density polyethylene (HDPE)] are commonly used to replace aging metallic pipe sections (e.g., cast iron) in water-distribution networks. However, our understanding of how a combined metallic-plastic-metallic system responds to hydraulic transients is limited. This research studies such a system...
Article
Full-text available
Controlled hydraulic transient pressure waves can be used to actively assess the condition of pressurised pipelines (e.g. leak detection). One practical challenge to the application of the technique to buried water pipelines is in the pressure measurement – fast-response pressure transducers are costly and the deployment is limited to one sensor pe...
Article
Full-text available
Research undertaken in the last two decades has demonstrated that hydraulic transient pressure waves, the phenomena behind water hammer, can be used as a tool for noninvasive and nondestructive condition assessment of long water transmission pipelines (in particular, detecting changes in the pipe wall properties). However, the spatial resolution of...
Article
Full-text available
Fault detection in water distribution systems is of critical importance for water authorities to maintain pipeline assets effectively. This paper develops an improved inverse transient analysis (ITA) method for the condition assessment of water transmission pipelines. For long transmission pipelines ITA approaches involve models using hundreds of d...
Article
Full-text available
Leak detection and localisation is critical for water distribution system pipelines. This paper examines the use of the time-domain impulse response function (IRF) for leak detection and localisation in a pressurised water pipeline with a pseudo random binary sequence (PRBS) signal excitation. Compared to the conventional step wave generated using...
Article
Full-text available
The optimization of pump operations has been widely studied, as it can decrease operational and maintenance costs and can reduce greenhouse gas emissions caused by the energy consumption from fossil fueled electricity sources. However, only the optimization of pump scheduling (where pumps are controlled based on times) and the optimization of simpl...
Article
Full-text available
Over the past two decades, techniques have been developed for pipeline leak detection and condition assessment using hydraulic transient waves (i.e. water hammer waves). A common measurement strategy for applications involves analysis of signals from a single pressure sensor located at each measurement site. The measured pressure trace from a singl...
Article
Full-text available
Water security has become an increasing concern for many water system managers due to climate change and increased population. In order to improve the security of supply, alternative sources such as harvested stormwater, recycled wastewater and desalination are becoming more commonly used. This brings about the need for tools to analyze and optimiz...
Article
Iron oxide nanowires produced by bacteria (Mariprofundus ferrooxydans) are demonstrated as new multifunctional drug carriers for triggered therapeutics release and cancer hyperthmia applications. Iron oxide nanowires are obtained from biofilm waste in the bore system used to pump saline groundwater into the River Murray, South Australia (Australia)...
Article
Naturally produced iron oxide nanowires by Mariprofundus ferrooxydans bacteria as biofilm are evaluated for their structural, chemical, and photocatalytic performance under visible light irradiation. The crystal phase structure of this unique natural material presents 1- dimensional (1D) nanowires like geometry, which is transformed from amorphous...
Conference Paper
Full-text available
As climate change and population growth, among other factors, put pressure on traditional water supplies, alternative sources of water are increasingly being used to supplement demand, particularly for non-potable applications. Stormwater from urban catchments can be harvested and treated to supply irrigation demands of public green spaces such as...
Article
Full-text available
A single-objective optimization model has been developed for water distribution system (WDS) pumping operations, considering five different types of pump operating regimes. These regimes use tank trigger levels, scheduling, and a combination of both to control pumps. A new toolkit development to alter rule-based controls in hydraulic simulation sof...
Article
Full-text available
The determination of the creep (compliance) function of viscoelastic pipelines is essential for modeling their hydraulic behavior and accurately predicting pressure responses under transient events. This paper proposes a novel frequency-domain technique for the determination of the creep function of viscoelastic pipelines using hydraulic transients...
Article
Full-text available
The optimization of pump operations has the potential to reduce operational costs, while still maintaining the high level of reliability required of water distribution systems. The hydraulic software EPANET2 toolkit has been frequently linked to evolutionary algorithms for this purpose; however, only time-based controls and simple controls based on...
Article
Full-text available
Asbestos cement pipelines constitute a significant portion of the potable and waste water systems in many countries in the world, including Australia. Most of the asbestos cement pipes in the developed countries were installed before 1980, and many utilities are observing that the breakage rate is increasing with the ageing of the pipe. Condition a...
Article
Full-text available
This research focuses on the study of the frequency response function (FRF) of viscoelastic pipelines. The transfer matrix of a uniform viscoelastic pipeline is derived using the generalized multi-element Kevin-Voigt (K-V) model. The analytical expressions of the characteristic impedance and propagation operator are presented. The frequency respons...
Article
Full-text available
This paper presents the original design of a side-discharge valve based transient generator that can produce two types of pseudorandom binary signals: a maximum length binary signal and an inverse repeat signal. These two signals are both wide bandwidth, persistent and periodic, but the inverse repeat signal has the advantageous property that it is...
Article
Full-text available
Sub-daily rainfall extremes are of significant societal interest, with implications for flash flooding and the design of urban stormwater systems. It is increasingly recognised that extreme subdaily rainfall will intensify as a result of global temperature increases, with regional climate models (RCMs) representing one of the principal lines of evi...
Article
Flood extremes are driven by highly variable and complex climatic and hydrological processes. Observational evidence has identified that seasonality of climate variables has a major impact on flood peaks. However, event-based joint probability approaches for predicting the flood frequency distribution (FFD), which are commonly used in practice, do...
Poster
Full-text available
Pumping operations in water supply and distribution systems are complex, and the use of alternative water sources such as harvested stormwater and groundwater increase this complexity. A framework has been developed that details what factors need to be considered when optimising design and operation of water supply and distribution systems. A real-...
Article
Full-text available
Pipeline condition assessment is essential for targeted and cost-effective maintenance of aging water transmission and distribution systems. This article proposes a technique for fast and non-invasive assessment of the wall condition of cement mortar–lined metallic pipelines using fluid transient pressure waves (water hammer waves). A step transien...
Article
Full-text available
Conceptual rainfall runoff models are used extensively in practice, as they provide a good balance between transparency and computational and data requirements. However, the degree to which they are able to represent underlying physical processes is poorly understood. This is because the performance of such models is generally assessed based on the...
Conference Paper
Full-text available
For the past couple of decades, researchers have been investigating the use of hydraulic transients (pressure surge waves) to investigate the condition of a pipeline system, and detect anomalies such as leaks, blockages, or pipe wall condition. The use of controlled hydraulic transients, combined with signal processing methods on measured pressure...
Conference Paper
Full-text available
A genetic algorithm (GA) model for water distribution system (WDS) operation has been developed, optimizing pumping by time-based scheduling and tank trigger levels. An important focus was the minimization of operational greenhouse gas (GHG) emissions, in conjunction with operational economic cost, to provide a comprehensive solution to the pumping...
Article
For the past couple of decades, researchers have been investigating the use of hydraulic transients (pressure surge waves) to investigate the condition of a pipeline system, and detect anomalies such as leaks, blockages, or pipe wall condition. The use of controlled hydraulic transients, combined with signal processing methods on measured pressure...
Poster
Full-text available
Pumping operations (controlled by trigger levels and scheduling) use a lot of energy, and can make up a signification portion of a water utility’s operating budget. By optimising pump operational strategies, the cost, energy use and greenhouse gas (GHG) emissions of pumping can be minimised. Optimisation has been performed on two traditional water...
Article
This paper presents a strategy for diagnosing and interpreting hydrological nonstationarity, aiming to improve hydrological models and their predictive ability under changing hydroclimatic conditions. The strategy consists of four elements: (i) detecting potential systematic errors in the calibration data; (ii) hypothesizing a set of ‘‘nonstationar...
Article
Full-text available
A non-crossover dither creeping mutation-based genetic algorithm (CMBGA) for pipe network optimization has been developed and is analyzed. This CMBGA differs from the classic GA optimization in that it does not utilize the crossover operator, but instead it only uses selection and a proposed dither creeping mutation operator. The creeping mutation...
Article
Full-text available
Recursive digital filters (RDFs) are one of the most commonly used methods of baseflow separation. However, how accurately they estimate baseflow and how to select appropriate values of filter parameters is generally unknown. In this paper, the output of fully integrated surface water/groundwater (SW/GW) models is used to obtain optimal parameters...
Article
In ungauged catchments or catchments without sufficient streamflow data, derived flood frequency methods are often applied to provide the basis for flood risk assessment. The most commonly used event-based methods, such as design storm and joint probability approaches are able to give fast estimation, but can also lead to prediction bias due to the...
Article
Full-text available
The detection of localized deterioration that is distributed along pipelines, including wall thickness reduction caused by large scale corrosion, is essential for targeted pipeline maintenance and the prevention of pipe failure. This paper proposes a novel technique for the detection of distributed deterioration along a pipeline by estimating the d...
Article
Climate and weather variables such as rainfall, temperature, and pressure are indicators for hazards such as tropical cyclones, floods, and fires. The impact of these events can be due to a single variable being in an extreme state, but more often it is the result of a combination of variables not all of which are necessarily extreme. Here, the com...
Article
Full-text available
The simulation of hydraulic transients within fluid line networks is important for many applications (for example, water hammer analysis within distribution networks). However, in many instances, modeling efforts are impeded by the fact that the pipeline parameters are either unknown or can vary significantly from their assumed design values. Conse...
Article
Full-text available
Pipeline leak detection using hydraulic transient analysis is a relatively new detection technique. For single pipeline systems, recent work has led to two different approaches for determining leak parameters based on leak-induced patterns displayed in a pipeline’s frequency response diagram (FRD). The major difference between the two techniques is...
Article
A non-crossover dither creeping mutation-based genetic algorithm (CMBGA) for pipe network optimization has been developed and is analyzed. This CMBGA differs from the classic GA optimization in that it does not utilize the crossover operator, but instead it only uses selection and a proposed dither creeping mutation operator. The creeping mutation...
Article
Full-text available
The simulation of hydraulic transients within fluid line networks is important for many applications (for example, water hammer analysis within distribution networks). However, in many instances, modeling efforts are impeded by the fact that the pipeline parameters are either unknown or can vary significantly from their assumed design values. Conse...
Article
Full-text available
The linear frequency response of a fluid-filled pipeline extracted by fluid transient waves can be used to detect leaks in pipelines. This research conducts numerical analysis on how to accurately determine the linear frequency response diagram (FRD) of single pipelines using persistent transient pressure signals. Two types of persistent signals, t...
Article
A genetic algorithm (GA) model for water distribution system (WDS) operation has been developed, optimizing pumping by time-based scheduling and tank trigger levels. An important focus was the minimization of operational greenhouse gas (GHG) emissions, in conjunction with operational economic cost, to provide a comprehensive solution to the pumping...
Article
Full-text available
The detection of localized deterioration that is distributed along pipelines, including wall thickness reduction caused by large scale corrosion, is essential for targeted pipeline maintenance and the prevention of pipe failure. This paper proposes a novel technique for the detection of distributed deterioration along a pipeline by estimating the d...
Article
Full-text available
The simulation of hydraulic transients within fluid line networks is important for many applications (for example, water hammer analysis within distribution networks). However, in many instances, modeling efforts are impeded by the fact that the pipeline parameters are either unknown or can vary significantly from their assumed design values. Conse...
Article
Full-text available
A noncrossover dither creeping mutation-based genetic algorithm (CMBGA) for pipe network optimization has been developed and is analyzed in this paper. This CMBGA differs from the classic genetic algorithm (GA) optimization in that it does not utilize the crossover operator; instead, it only uses selection and a proposed dither creeping mutation op...
Article
Full-text available
Climate and weather variables such as rainfall, temperature, and pressure are indicators for hazards such as tropical cyclones, floods, and fires. The impact of these events can be due to a single variable being in an extreme state, but more often it is the result of a combination of variables not all ofwhich are necessarily extreme. Here, the comb...
Article
The hybrid causative events (hybrid-CE) method was developed to efficiently estimate the annual flood distribution. Compared with the design storm approach and traditional joint probability approaches, it is based on a sounder concept by explicitly using the causative events of flows and thus reduces estimation biases of annual floods which are ind...
Article
Full-text available
The impact of climate change on flood extremes is of major importance globally. It is recognised that increased atmospheric temperatures and specific humidity may cause the intensity and frequency of extreme rainfall events to change. Furthermore, changes in rainfall patterns are likely to affect the wetness of a catchment prior to flood events and...
Data
Full-text available
This paper presents an experimental validation of the frequency response method for pipeline leak detection. The presence of a leak within the pipe imposes a periodic pattern on the resonant peaks of the frequency response diagram. This pattern can be used as an indicator of leaks without requiring the "no-leak" benchmark for comparison. In additio...
Article
Full-text available
The linear frequency response of a fluid-filled pipeline extracted by fluid transient waves can be used to detect leaks in pipelines. This research conducts numerical analysis on how to accurately determine the linear frequency response diagram (FRD) of single pipelines using persistent transient pressure signals. Two types of persistent signals, t...
Article
Full-text available
The accurate hydraulic simulation of uid line networks is important for many applica- tions, however, in many instances (such as surge analysis in water distribution networks) the system parameters are subject to much uncertainty. This paper presents a parameter identi�cation method for uid line networks based on transient-state measurements of t...
Article
Full-text available
Hydraulic transients (water hammer waves) can be used to excite a pressurized pipeline, yielding the frequency response diagram (FRD) of the system. The FRD of a pipeline system is useful for condition assessment and fault detection, because it is closely related to the physical properties of the pipeline. Most previous FRD-based leak detection tec...
Article
Full-text available
Climate variables give rise to hazards such as cyclones, floods and fires where an extreme impact is the result of a combination of variables rather than any one variable being in an extreme state in isolation. The combination of variables is termed a compound event and the nature of any given compound event will depend upon the variety of physical...
Article
The stationarity of hydrological models is increasingly being called into question, due partly to changes in land cover as well as natural and anthropogenic climate change. This issue is manifest in model parameters which change over time, creating challenges in calibration and validation (as the joint distribution of model parameters is conditiona...
Article
Baseflow is often regarded as the streamflow component derived predominantly from groundwater discharge. The estimation of baseflow is important for water supply, water allocation, investigation of contamination impacts, low flow hydrology and flood hydrology. Baseflow is commonly estimated using graphical methods, recursive digital filters (RDFs),...
Article
Full-text available
The application of inverse transient analysis (ITA) to estimate the location and magnitude of lost lining and internal corrosion of metal pipelines is demonstrated for a field pipeline. The method uses a transient model and inverse search algorithm to analyze patterns of measured pressure reflections obtained after a transient pressure wave is indu...
Article
Full-text available
Baseflow is often regarded as the streamflow component derived predominantly from groundwater discharge. The estimation of baseflow is important for water supply, water allocation, investigation of contamination impacts, low flow hydrology and flood hydrology. Baseflow is commonly estimated using graphical methods, recursive digital filters (RDFs),...
Article
Full-text available
A number of different methods that use signal processing of fluid transients (water hammer waves) for fault detection in pipes have been proposed in the last two decades.However, most of them focus solely on the detection of discrete deterioration, such as leaks or discrete blockages. Few studies have been conducted on the detection of distributed...
Article
The accurate hydraulic simulation of fluid line networks is important for many applications, however, in many instances (such as surge analysis in water distribution networks) the system parameters are subject to much uncertainty. This paper presents a parameter identification method for fluid line networks based on transient-state measurements of...
Article
Full-text available
A non-crossover dither creeping mutation-based genetic algorithm (CMBGA) for pipe network optimization has been developed and is analyzed. This CMBGA differs from the classic GA optimization in that it does not utilize the crossover operator, but instead it only uses selection and a proposed dither creeping mutation operator. The creeping mutation...
Article
Full-text available
A number of different methods that use signal processing of fluid transients (water hammer waves) for fault detection in pipes have been proposed in the past two decades. However, most of them focus solely on the detection of discrete deterioration, such as leaks or discrete blockages. Few studies have been conducted on the detection of distributed...
Article
Full-text available
Hydraulic transients (water hammer waves) can be used to excite a pressurized pipeline, yielding the frequency response diagram (FRD) of the system. The FRD of a pipeline system is useful for condition assessment and fault detection, because it is closely related to the physical properties of the pipeline. Most previous FRD-based leak detection tec...